Displaying publications 1 - 20 of 28 in total

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  1. Zhong Q, Gelaye B, Rondon M, Sánchez SE, García PJ, Sánchez E, et al.
    J Affect Disord, 2014 Jun;162:1-7.
    PMID: 24766996 DOI: 10.1016/j.jad.2014.03.028
    OBJECTIVE: We sought to evaluate the psychometric properties of two widely used screening scales: the Patient Health Questionnaire (PHQ-9) and Edinburgh Postnatal Depression Scale (EPDS) among pregnant Peruvian women.
    METHODS: This cross-sectional study included 1517 women receiving prenatal care from February 2012 to March 2013. A structured interview was used to collect data using PHQ-9 and EPDS. We examined reliability, construct and concurrent validity between two scales using internal consistency indices, factor structures, correlations, and Cohen׳s kappa.
    RESULTS: Both scales had good internal consistency (Cronbach׳s alpha>0.8). Correlation between PHQ-9 and EPDS scores was fair (rho=0.52). Based on exploratory factor analysis (EFA), both scales yielded a two-factor structure. EFA including all items from PHQ-9 and EPDS yielded four factors, namely, "somatization", "depression and suicidal ideation", "anxiety and depression", and "anhedonia". The agreement between the two scales was generally fair at different cutoff scores with the highest Cohen׳s kappa being 0.46.
    CONCLUSIONS: Both the PHQ-9 and EPDS are reliable and valid scales for antepartum depression assessment. The PHQ-9 captures somatic symptoms, while EPDS detects depressive symptoms comorbid with anxiety during early pregnancy. Our findings suggest simultaneous administration of both scales may improve identification of antepartum depressive disorders in clinical settings.
  2. Zhao S, Zhang J, Liu Y, Ji H, Lew B
    J Affect Disord, 2020 01 01;260:105-110.
    PMID: 31494361 DOI: 10.1016/j.jad.2019.09.006
    BACKGROUND: Previous research on the relationship between life satisfaction and its influencing factors has mainly focused on the work domain. Psychological strains, which result from these stress-related outcomes, have not been paid enough attention to explain how it correlates negatively with life satisfaction.

    METHOD: A cross-sectional study was conducted, using questionnaires sent to selected medical staff in a public hospital in Shandong, China (N = 1012). Multiple regression analysis was used to investigate how psychological strains influencing life satisfactions among medical staff.

    RESULTS: The findings indicate that aspiration strain and deprivation strain have significantly negative impact on medical staff's life satisfaction even with other variables controlled for. Weekly working hour was a significant predictor for life satisfaction. Family factors, such as marital status and kids in the family as well as social support were important factors in influencing individuals' life satisfaction.

    CONCLUSION: The current study highlights the negative associations between aspiration strain, deprivation strain and life satisfaction. The result underlines the importance of actions taken to prevent and combat psychological strains. It also provides some evidence for policy makers to improve the work environment for medical staff, such as reduce weekly working hours and enhance social support in order to increase medical staff's life satisfaction.

  3. Zhang J, Huen JMY, Lew B, Chistopolskaya K, Talib MA, Siau CS, et al.
    J Affect Disord, 2020 06 15;271:279-285.
    PMID: 32479327 DOI: 10.1016/j.jad.2020.03.076
    BACKGROUND: The etiological factors of mood disorders and psychopathologies are understudied. In this paper, we explored whether social psychological strains are related to depression, anxiety, and stress in non-clinical populations.

    METHODS: 6,305 college students (39.3% men; 60.7% women) from six Chinese provincial-level jurisdictions completed a paper-and-pencil survey with Psychological Strain Scales (PSS-40) and Depression, Anxiety, and Stress Scales-21 (DASS-21), both validated in Chinese populations.

    RESULTS: Both PSS-40 and DASS-21 have high internal consistency reliabilities, and are highly correlated with each other. Hence, Chinese college students with greater psychological strains (value, aspiration, deprivation, or coping) have greater depression, anxiety, and stress. These results still held after controlling for relevant socio-demographic variables in the multiple regression models.

    LIMITATIONS: This was a cross-sectional study, and the sample only included several provinces in mainland China, not a representative sample of all of them.

    CONCLUSIONS: Mood disorders and psychopathologies are linked to suicidal thoughts and behaviors. The results of this study extend the Strain Theory of Suicide from explaining the risk factors of suicidality to mood disorders and psychopathologies. Hence, these findings can inform prevention measures among college students, and possibly the general population.

  4. Sugawara D, Chishima Y, Kubo T, Shah RIABRR, Phoo EYM, Ng SL, et al.
    J Affect Disord, 2022 Aug 15;311:500-507.
    PMID: 35561884 DOI: 10.1016/j.jad.2022.05.032
    BACKGROUND: The current study examined how psychological resilience acted as a buffer against mental health deterioration during the coronavirus disease 2019 (COVID-19) pandemic. We conducted an online survey in four countries (Japan, Malaysia, China, and the U.S.) to examine how psychological resilience functions toward the maintenance of mental health during the COVID-19 pandemic.

    METHODS: We collected data from 1583 citizens from four countries via an online survey between October 14 and November 2, 2020. We gathered demographic data and measured mental distress (depression, anxiety, and stress) and fear of COVID-19. Data on sense of control, ego-resilience, grit, self-compassion, and resilience indicators were also collected.

    RESULTS: Sense of control was negatively associated with mental distress in all four countries. Self-compassion was negatively associated with mental distress in the samples from Japan, China, and the U.S. We also found an interaction effect for sense of control: the lower the sense of control, the stronger the deterioration of mental distress when the fear of COVID-19 was high.

    LIMITATIONS: This study's cross-sectional design precludes causal inferences. Further, lack of data from people who were actually infected with the virus limits comparisons of people who were and were not infected. Finally, as this study only compared data from four countries, comparisons with more countries are needed.

    CONCLUSIONS: A sense of control and self-compassion may help buffer against mental health deterioration during the COVID-19 pandemic. Sense of control was consistently associated with mental health across cultures.

  5. Srisurapanont M, Bautista D, Chen CH, Wang G, Udomratn P, Eurviriyanukul K
    J Affect Disord, 2015 Jan 15;171:105-10.
    PMID: 25303026 DOI: 10.1016/j.jad.2014.09.007
    BACKGROUND: Subjective cognitive impairment (SCI) in major depressive disorder (MDD) is prevalent and correlated with disability. This study aimed to examine the prevalence rates and correlates of subjective memory deficit (SMD) and subjective concentration deficit (SCD) in medication-free, non-elderly Asians with MDD.
    METHODS: The SMD and SCD were assessed by using two items of the Symptom Checklist-90-Revised (SCL-90-R). Other measurements of interest included the Montgomery-Asberg Depression Rating Scale (MADRS), the Fatigue Severity Scale (FSS), the Sheehan Disability Scale (SDS), and the Short Form Health Survey (SF-36). Adjusted odds ratios with 95% confidence intervals were calculated.
    RESULTS: Of 515 participants from China, Korea, Malaysia, Singapore, Taiwan, and Thailand, 347 (67.4%) and 377 (73.2%) had SMD and SCD, respectively. In total, 420 participants (81.6%) had SMD alone, SCD alone, and both deficits. Severe depression and poor mental health were significant correlates of SMD. Severe depression, clinically significant disability, poor physical health, and poor mental health were significantly independent correlates of SCD. Compared with young adults (18-34 years), older adults aged 50-65 years had a significantly lower risk of SCD (OR=.33, 95% CI: .19-.57).
    LIMITATIONS: Only two SCL-90-R items were used to assess the SMD and SCD. The exclusion of MDD patients treated with psychotropic medications eliminated many patients commonly seen in typical clinic settings.
    CONCLUSION: SMD and SCD are prevalent in medication-free, non-elderly Asians with MDD. Both deficits are correlated with depression and mental health status. The independent correlation between SCD and disability underscores the crucial role of SCI in MDD.
    KEYWORDS: Asian; Cognitive impairment; Depressive disorders; SCL-90-R; Subjective
  6. Srisurapanont M, Likhitsathian S, Chua HC, Udomratn P, Chang S, Maneeton N, et al.
    J Affect Disord, 2015 Nov 1;186:26-31.
    PMID: 26226430 DOI: 10.1016/j.jad.2015.06.032
    BACKGROUND: Little has been known regarding the correlates of severe insomnia in major depressive disorder (MDD). This post-hoc analysis aimed to examine the sociodemographic and clinical correlates of severe insomnia in psychotropic drug-free, Asian adult outpatients with MDD.
    METHODS: Participants were psychotropic drug-free patients with MDD, aged 18-65 years. By using the Symptom Checklist-90 Items, Revised (SCL-90-R), a score of 4 (severe distress) on any one of three insomnia items was defined as severe insomnia. Other measures included the Montgomery-Asberg Depression Rating Scale (MADRS), the Fatigue Severity Scale (FSS), the nine psychopathology subscales of SCL-90-R, the Physical and Mental Component Summaries of Short Form Health Survey (SF-36 PCS and SF-36 MCS), and the Sheehan Disability Scale (SDS).
    RESULTS: Of 528 participants, their mean age being 39.5 (SD=13.26) years, 64.2% were females, and 239 (45.3%) had severe insomnia. The logistic regression model revealed that low educational qualifications (less than secondary school completion), high SCL-90-R Depression scores, high SCL-90-R Anxiety scores, and low SF-36 PCS scores were independently correlated with severe insomnia (p's
  7. Srisurapanont M, Mok YM, Yang YK, Chan HN, Della CD, Zainal NZ, et al.
    J Affect Disord, 2018 05;232:237-242.
    PMID: 29499506 DOI: 10.1016/j.jad.2018.02.014
    BACKGROUND: Several studies have described the presence of perceived cognitive dysfunction amongst Asian patients with major depressive disorder (MDD). To date, no study has been conducted investigating the predictors of perceived cognitive dysfunction amongst Asian MDD patients.

    METHODS: This was a post-hoc analysis of the Cognitive Dysfunction in Asian patients with Depression (CogDAD) study. Descriptive statistics were used to describe the most common cognitive complaints by patients. Univariate and multivariate analyses were performed to determine variables associated with perceived cognitive dysfunction (Perceived Deficit Questionnaire-Depression, PDQ-D).

    RESULTS: The CogDAD study population is comprised of MDD patients with mild-to-moderate depression (Patient Health Questionnaire 9-item [PHQ-9]: 11.3 ± 6.9) who reported perceived cognitive dysfunction (PDQ-D = 22.6 ± 16.2). The most common cognitive complaints were: mind drifting (42.3%), trouble making decision (39.6%) and trouble concentrating (38.0%). Predictors of perceived cognitive dysfunction were: being Southeast Asians (vs. Taiwanese) (p 

  8. Song Y, Bai W, Wang M, Liu X, Zhang L, Yu W, et al.
    J Affect Disord, 2019 12 01;259:195-200.
    PMID: 31446380 DOI: 10.1016/j.jad.2019.08.042
    BACKGROUND: Suicide is a major global mental health problem among college students. The aim of the current study was to explore the association between the psychological strains of the strain theory of suicide and suicidal behaviors among college students.

    METHODS: Participants comprised 1912 college students (16-28 years old, 47.2% female) from three universities in Jilin Province, China, who completed the self-report assessments of psychological strains (40 items Psychological Strains Scale) and suicidal behaviors (Suicidal Behaviors Questionnaire-Revised). The demographic characteristics included four variables: health status, psychological status, academic status and economic status.

    RESULTS: Approximately 15.0% (286/1912) of participants were classified as having suicide risk, based on the cut-off scores of the SBQ-R. The prevalence of suicidal behaviors among males and females was 11.9% (120/1009) and 18.4% (166/903), respectively. Value strain (OR = 1.075, 95%CI: 1.057-1.094), aspiration strain (OR = 1.082, 95%CI: 1.064-1.101), deprivation strain (OR = 1.073, 95%CI: 1.052-1.093), and coping strain (OR = 1.095, 95%CI: 1.075-1.116) were risk factors for suicidality in college students. Coping strain (OR = 1.050, 95%CI: 1.023-1.077) was still positively associated with suicide risk in multivariate logistic regression. Logistic regression analysis indicated that coping strain had the highest correlation with suicidal behaviors.

    LIMITATIONS: The directionality of the relationships cannot be deduced because this study is cross-sectional.

    CONCLUSION: This study confirms a strong association between psychological strains and suicidal behaviors in college students. Some measures can be taken to reduce psychological strains to mitigate suicide risk among college students. More studies investigating coping strain among college students are warranted.

  9. Saravanan C, Alias A, Mohamad M
    J Affect Disord, 2017 10 01;220:108-116.
    PMID: 28618312 DOI: 10.1016/j.jad.2017.05.037
    BACKGROUND: Students who go to other countries for higher education face various psychological problems, particularly homesickness and depression. The objectives of this study were to: (a) identify differences between students who did and did not receive brief individual cognitive behavioural therapy (CBT) for depression to reduce homesickness; (b) identify whether brief individual CBT for depression reduces the level of homesickness in students between pre-, post- and follow-up assessment; and (c) compare the scores of students experiencing only homesickness and those experiencing both homesickness and depression.

    METHOD: The sample consisted of 520 first-year undergraduate international students. The experimental group contained students who were diagnosed with depression and homesickness and received seven sessions of brief individual CBT for depression to reduce homesickness. The control group contained students who were diagnosed with depression and homesickness and received one session of advice and suggestions. The comparison group contained students who experienced only homesickness and did not receive any interventions. The study used the comparison group to determine if an interaction effect existed between students experiencing only homesickness and students experiencing both homesickness and depression.

    RESULTS: Students who received brief individual CBT displayed a significant reduction in their homesickness and depression scores compared to the scores of students in the control group. Students who experienced only homesickness exhibited a significant reduction in the scores on homesickness in the post-assessment compared to the control group's post-assessment homesickness scores.

    LIMITATION: The results of this study cannot be generalized as data were collected from three universities in Malaysia. The follow-up assessment was conducted six months after the post-assessment, which also limits generalizability beyond six months.

    CONCLUSION: Overall, homesickness is considered a normal reaction. Brief individual CBT for depression is effective in reducing homesickness and depression among international students.

  10. Ramzi NH, Auvinen J, Veijola J, Miettunen J, Ala-Mursula L, Sebert S, et al.
    J Affect Disord, 2023 Jun 15;331:1-7.
    PMID: 36933669 DOI: 10.1016/j.jad.2023.03.026
    BACKGROUND: The fact that a complex relationship exists between alexithymia and body mass index (BMI) is well established, but the underlying mechanisms remain poorly understood. Here, we explore the relationship between alexithymia and depressive symptoms in relation to adiposity measures, including the direct and indirect effect of alexithymia and depressive symptoms on obesity over a 15-year time-period, in the Northern Finland Birth Cohort 1966 (NFBC1966).

    METHODS: The study included individuals from the Northern Finland Birth Cohort 1966 (NFBC1966) who had available data for adiposity measures (body mass index and waist-to-hip ratio), alexithymia (measured by the 20-Item Toronto Alexithymia Scale: TAS-20), depressive symptoms (measured by the 13-item depression subscale of Hopkins Symptom Checklist: HSCL-13) at age of 31 years (n = 4773) and 46 years (n = 4431). Pearson's (r) correlation, and multiple linear regression were used to investigate the relationships between alexithymia, depressive symptoms, and adiposity measures. The potential mediating role of depressive symptoms was examined via Hayes' procedure (PROCESS).

    RESULTS: Positive correlations were confirmed between adiposity measures (BMI and WHR) and the TAS-20 score (and its subscale), but not between obesity and HSCL-13 score. The strongest correlation was between the DIF (difficulty identifying feelings) subscale of the TAS-20 and HSCL-13 at both time points (31 y: r(3013) = 0.41, p 

  11. Quintana GR, Ponce FP, Escudero-Pastén JI, Santibáñez-Palma JF, Nagy L, Koós M, et al.
    J Affect Disord, 2024 Apr 01;350:991-1006.
    PMID: 38244805 DOI: 10.1016/j.jad.2024.01.127
    BACKGROUND: Depression and anxiety are among the most prevalent mental health issues experienced worldwide. However, whereas cross-cultural studies utilize psychometrically valid and reliable scales, fewer can meaningfully compare these conditions across different groups. To address this gap, the current study aimed to psychometrically assess the Brief Symptomatology Index (BSI) in 42 countries.

    METHODS: Using data from the International Sex Survey (N = 82,243; Mage = 32.39; SDage = 12.52; women: n = 46,874; 57 %), we examined the reliability of depression and anxiety symptom scores of the BSI-18, as well as evaluated evidence of construct, invariance, and criterion-related validity in predicting clinically relevant variables across countries, languages, genders, and sexual orientations.

    RESULTS: Results corroborated an invariant, two-factor structure across all groups tested, exhibiting excellent reliability estimates for both subscales. The 'caseness' criterion effectively discriminated among those at low and high risk of depression and anxiety, yielding differential effects on the clinical criteria examined.

    LIMITATIONS: The predictive validation was not made against a clinical diagnosis, and the full BSI-18 scale was not examined (excluding the somatization sub-dimension), limiting the validation scope of the BSI-18. Finally, the study was conducted online, mainly by advertisements through social media, ultimately skewing our sample towards women, younger, and highly educated populations.

    CONCLUSIONS: The results support that the BSI-12 is a valid and reliable assessment tool for assessing depression and anxiety symptoms across countries, languages, genders, and sexual orientations. Further, its caseness criterion can discriminate well between participants at high and low risk of depression and anxiety.

  12. Norhayati MN, Hazlina NH, Asrenee AR, Emilin WM
    J Affect Disord, 2015 Apr 1;175:34-52.
    PMID: 25590764 DOI: 10.1016/j.jad.2014.12.041
    BACKGROUND: The prevalence of postpartum depression worldwide varies from 0.5% to 60.8% in the first 12 months postpartum using self-reported questionnaire. This review aims to update the current magnitude of postpartum depression based on self-reported questionnaire and clinical interview and explore its associated factors in developed and developing countries.
    METHODS: A literature search conducted between 2005 and 2014 identified 203 studies, of which 191 used self-reported questionnaire in 42 countries and 21 used structured clinical interview in 15 countries. Nine studies used a combination of self-reported questionnaire and clinical interview.
    RESULT: The prevalence of postpartum depression varies from 1.9% to 82.1% in developing countries and from 5.2% to 74.0% in developed countries using self-reported questionnaire. Structured clinical interview shows a much lower prevalence range from 0.1% in Finland to 26.3% in India. Antenatal depression and anxiety, previous psychiatric illness, poor marital relationship, stressful life events, negative attitude towards pregnancy, and lack of social support are significant contributors to postpartum depression.
    LIMITATION: All studies are included irrespective of the methodological quality, such as small sample size and their inclusion could affect the generalizability of the results.
    CONCLUSION: The current prevalence of postpartum depression is much higher than that previously reported, and similar risk factors are documented. A culturally sensitive cut-off score with adequate psychometric properties of the screening instruments should be available. In future studies, examining the physical, biological, and cultural factors in qualitative studies and in those with adequate methodological qualities is recommended.
    KEYWORDS:Epidemiology; Postpartum depression; Prevalence; Risk factors
  13. Nicolosi A, Moreira ED, Villa M, Glasser DB
    J Affect Disord, 2004 Oct 15;82(2):235-43.
    PMID: 15488252 DOI: 10.1016/j.jad.2003.12.008
    BACKGROUND:
    Depression and erectile dysfunction (ED) have a complex and bi-directional relationship. We examined the relationships between erectile dysfunction and depressive symptoms or diagnosed depression, sexual activity and sexual satisfaction.

    METHODS:
    A population survey of men aged 40-70 years was carried out in Brazil, Italy, Japan and Malaysia in 1997-1998. A questionnaire was used to collect life style, sexual behaviors and medical data. Depressive symptoms were assessed using the Center for Epidemiologic Studies Depression Scale. ED was classified as moderate or complete if the men reported they were "sometimes" or "never" able to achieve and maintain an erection satisfactory for sexual intercourse. Only men with a sexual partner and not taking psychoactive drugs were considered.

    RESULTS:
    Diagnosed depression was reported by 2.0% of the men, depressive symptoms by 21.0%. The prevalence of moderate or complete ED was 17.8%. Sexual satisfaction related to the frequency of sexual intercourse and inversely related to depressive symptoms. Depressive symptoms were positively associated with being single (odds ratio [OR] 1.7), widowed, separated or divorced (OR 2.2), moderate or complete ED (1.8), heart disease (1.6) and smoking (1.6), and negatively associated with age, physical activity and frequency of sexual intercourse.

    LIMITATIONS:
    Cross-sectional studies cannot establish a temporal cause-effect relationship. However, the confirmation of known associations reassures about the validity of the original findings.

    CONCLUSIONS:
    The findings suggest that depressive symptoms are linked to ED by the mediation of decreased sexual activity and the dissatisfaction generated by the inability to have a healthy sexual life.
  14. Motevalli S, Salahshour HM, Bailey RP
    J Affect Disord, 2023 Oct 15;339:676-682.
    PMID: 37479040 DOI: 10.1016/j.jad.2023.07.043
    INTRODUCTION: This study aimed to examine the mediating role of cognitive flexibility in the relationship between cognitive emotion regulation strategies and mindfulness in patients with type 2 diabetes.

    METHODS: The research was conducted by correlation method) using Structural Equation Modeling). The statistical population consisted of all women and men with type 2 diabetes. Two hundred fifty-three samples were selected by convenience sampling method. The participants responded to the Cognitive Emotion Regulation Questionnaire, the Kentucky inventory of mindfulness skills, and the Cognitive Flexibility Inventory.

    RESULTS: The results showed that the total path coefficient between the adaptive cognitive emotion regulation strategies and mindfulness (β = 0.243, P = 0.005) was positive and significant, and the total path coefficient between the maladaptive cognitive emotion regulation strategies and mindfulness (β = -0.453, P = 0.001) was negative and significant. The path coefficient between cognitive flexibility and mindfulness (β = 0.273, P = 0.009) was positive and significant. The indirect path coefficient between the adaptive cognitive emotion regulation strategies and mindfulness (β = 0.094, P = 0.007) was positive and significant, and the indirect path coefficient between the maladaptive cognitive emotion regulation strategies and mindfulness (β = -0.117, P = 0.009) was negative and significant.

    CONCLUSION: Improving emotion regulation skills increases cognitive flexibility and mindfulness in patients with type 2 diabetes.

  15. Longhurst P, Swami V
    J Affect Disord, 2023 Aug 01;334:121-128.
    PMID: 37156268 DOI: 10.1016/j.jad.2023.04.142
    BACKGROUND: Research has increasingly examined the ways in which internal bodily experiences influence body image, including the relationship between alexithymia - the reduced ability to identify and describe one's own emotional feelings and bodily sensations - and negative body image. However, relationships between facets of alexithymia and positive body image remain unexplored.

    METHODS: To bridge this gap in the literature, we assessed relationships between facets of alexithymia and multiple, core indices of positive body image in an online sample of adults from the United Kingdom. A total of 395 participants (226 women, 169 men) aged 18 to 84 years completed measures of alexithymia, body appreciation, functionality appreciation, body image flexibility, body acceptance by others, and positive rational acceptance.

    RESULTS: Once the effects of age had been accounted for, alexithymia was significantly and negatively associated with all five body image constructs in hierarchical multiple regressions. In the final models, the alexithymia facet of Difficulties Identifying Feeling emerged as a significant and negative predictor of all indices of positive body image.

    LIMITATIONS: The use of cross-sectional data limits the causal conclusions that can be drawn.

    CONCLUSIONS: These findings extend previous work by demonstrating the unique relationship between alexithymia and positive body image, providing important implications for body image research and practice.

  16. Li Y, Roslan SB, Ahmad NAB, Omar ZB, Zhang L
    J Affect Disord, 2019 05 15;251:274-279.
    PMID: 30953892 DOI: 10.1016/j.jad.2018.12.051
    BACKGROUND: The objective of this randomized controlled experimental study was to determine the intervention effect of group interpersonal psychotherapy (G-IPT) for aggression and social support among Chinese first-grade university students.

    METHODS: Through stratified random sampling, 1469 students, aged 18-19 years, were enrolled. Participants whose score achieved the aggressive evaluation standard were selected and then 60 participants were randomly divided into 2 groups: G-IPT and control. The participants in the G-IPT group received 16 sessions of treatment, whereas the participants in the control group did not receive any intervention. All participants completed the assessment three times: before, after, and tracking.

    RESULTS: The results showed that the total score and the scores of all subscales of aggression dropped significantly (P 

  17. Huen JMY, Zhang J, Osman A, Lew B, Yip PSF
    J Affect Disord, 2021 02 15;281:1-8.
    PMID: 33278765 DOI: 10.1016/j.jad.2020.11.069
    BACKGROUND: The 40-item Psychological Strain Scales (PSS) was developed to measure four dimensions of psychological strains based on the Strain Theory of Suicide. Although the PSS has been increasingly used in recent years, the dimensionality and scoring of the PSS remained to be thoroughly examined using the Item Response Theory (IRT) approach.

    METHODS: Data came from a large sample of 11,412 Chinese undergraduate students. A bifactor-IRT model, specifying one general strain factor and four specific strains factors, was examined for fit to the sample data. A detailed item analysis, with analysis of the differential item functioning (DIF) of the items across gender, was undertaken to evaluate the dimensionality of the PSS. The associations among the PSS scale scores with scores on the concurrent measures, assessing psychache and suicidal behaviors, were examined.

    RESULTS: IRT-derived specific bifactor indices showed that the PSS was unidimensional, and thus the PSS total scores should be reported. Unidimensional subset of 5 items identified (Item 9, Item 12, Item 14, Item 16, and Item 20), using bifactor-IRT modeling and incremental validation, were selected to construct a potential short form of the PSS (PSS-SF). The PSS-SF scale scores demonstrated strong psychometric properties and associations with scores on the concurrent measures assessing relevant constructs.

    LIMITATIONS: This study used cross-sectional data from a non-clinical sample of Chinese undergraduate students.

    CONCLUSIONS: The PSS-SF should be considered as a unidimensional instrument with potential in enhancing our understanding and measurement of psychological strains with reduced response burden.

  18. Hua Z, Wang S, Yuan X
    J Affect Disord, 2024 Apr 01;350:831-837.
    PMID: 38242215 DOI: 10.1016/j.jad.2024.01.009
    BACKGROUND: The objective of this study was to provide a comprehensive analysis of the spatial distribution and temporal trends in the age-standardized incidence rates (ASIRs) of depression in adolescents aged 10-24 worldwide.

    METHODS: Data from the Global Burden of Disease Study (GBD) 2019 were analyzed, adopting Sawyer's broad definition of adolescence encompassing ages 10 to 24. Estimated annual percentage changes (EAPCs) were used to assess temporal trends.

    RESULTS: Globally, from 1990 to 2019, there was a decrease in the ASIR of depression in adolescents (EAPC = -0.23). Notably, this decrease was more pronounced in female adolescents compared to their male counterparts (EAPC = -0.12 and - 0.29, respectively). Conversely, high Sociodemographic Index (SDI) regions experienced a significant increase in the ASIR of depression among adolescents (EAPC = 0.87). Furthermore, it is worth mentioning that individuals aged 20-24 exhibited the highest incidence rate for depression followed by those aged 15-19 and then those aged 10-14. The largest increases in the ASIRs of depression occurred in High-income North America (EAPC = 1.19) and Malaysia (EAPC = 2.4), respectively.

    LIMITATIONS: Mathematical models were used to reconstruct and adjust data of different qualities, which might have introduced bias.

    CONCLUSIONS: The global burden of disease for depression among adolescents aged 10-24 years declined from 1990 to 2019. Special attention must be paid to older adolescents and areas with higher SDIs.

  19. Ho SC, Chong HY, Chaiyakunapruk N, Tangiisuran B, Jacob SA
    J Affect Disord, 2016 Mar 15;193:1-10.
    PMID: 26748881 DOI: 10.1016/j.jad.2015.12.029
    Medication non-adherence is one of the major challenges in treating patients with depression. This systematic review aims to determine the clinical and economic outcomes of non-adherence in depression.
  20. He L, Soh KL, Huang F, Khaza'ai H, Geok SK, Vorasiha P, et al.
    J Affect Disord, 2023 Jan 15;321:304-319.
    PMID: 36374719 DOI: 10.1016/j.jad.2022.10.026
    BACKGROUND: No meta-analysis has analyzed the effect of physical activity level, period of physical activity intervention, and duration of intervention, on perinatal depression. This study was to evaluate the impact of physical activity intensity, dose, period, and duration on perinatal depression.

    METHODS: The literature was searched via the PubMed, Embase, Cochrane Library, and Web of Science databases. Weighted mean difference (WMD) or the risk ratio (RR) was used as the effect indicator, and the effect size was represented by the 95 % confidence interval (CI). Subgroup analysis based on the perinatal stage, physical activity intensity, physical activity equivalent, and intervention duration was performed.

    RESULTS: Totally, 35 studies including 5084 women were included. Physical activity could reduce the incidence and severity of depression in perinatal women. Among depressed women with prenatal depression, low-intensity physical activity, with metabolic equivalents (METs)-min/week being <450, was associated with lower levels of depression. In the general population, the risk of postpartum depression was lower in the physical activity group when the duration of intervention was ≥12 weeks, being II, III stage, and ≥450 METs-min/week. Both low and moderate-intensity physical activity were beneficial to an improved depression severity among depressed women with postpartum depression, and moderate exercise intervention could decrease the risk of postpartum depression in general pregnant women.

    LIMITATIONS: Different types of physical activities may affect the effectiveness of interventions.

    CONCLUSION: Our study indicated physical activity specifically targeted at pregnant women could reduce depression risk and severity.

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