Displaying publications 61 - 80 of 1062 in total

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  1. Madhanagopal J, Singh OP, Mohan V, Sathasivam KV, Omar AH, Abdul Kadir MR
    Eval Health Prof, 2019 03;42(1):103-113.
    PMID: 28868907 DOI: 10.1177/0163278717727568
    An accurate measurement of intrinsic hand muscle strength (IHMS) is required by clinicians for effective clinical decision-making, diagnosis of certain diseases, and evaluation of the outcome of treatment. In practice, the clinicians use Intrins-o-meter and Rotterdam Intrinsic Hand Myometer for IHMS measurement. These are quite bulky, expensive, and possess poor interobserver reliability (37-52%) and sensitivity. The purpose of this study was to develop an alternative lightweight, accurate, cost-effective force measurement device with a simple electronic circuit and test its suitability for IHMS measurement. The device was constructed with ketjenblack/deproteinized natural rubber sensor, 1-MΩ potential divider, and Arduino Uno through the custom-written software. Then, the device was calibrated and tested for accuracy and repeatability within the force range of finger muscles (100 N). The 95% limit of agreement in accuracy from -1.95 N to 2.06 N for 10 to 100 N applied load and repeatability coefficient of ±1.91 N or 6.2% was achieved. Furthermore, the expenditure for the device construction was around US$ 53. For a practical demonstration, the device was tested among 16 participants for isometric strength measurement of the ulnar abductor and dorsal interossei. The results revealed that the performance of the device was suitable for IHMS measurement.
    Matched MeSH terms: Age Factors
  2. Liu X, Huang Y, Liu Y
    PLoS One, 2018;13(12):e0207823.
    PMID: 30566431 DOI: 10.1371/journal.pone.0207823
    Suicide attempts are the most important known predictor of death by suicide. The aim of this study is to examine the prevalence, distribution, and associated factors of suicide attempts among young adolescents in 40 low-income and middle-income countries. We used data from the Global School-Based Student Health Survey (2009-2013) and a nationally representative study in China (2010), which are school-based surveys of students primarily aged 12-18 years that assess health behaviors using an anonymous, standardized, self-reported questionnaire. We calculated the prevalence of suicide attempts in young adolescents from 40 low-income and middle-income countries using the surveys. Multilevel logistic models were used to estimate the associations between suicide attempts and potential risk factors, adjusting for gender, age, school and survey year. Results show that the mean 12-month prevalence of suicide attempts was 17.2%, ranging from 6.7% in Malaysia to 61.2% in Samoa. The overall prevalence of suicide attempts was higher for girls than for boys (18.2% vs 16.2%, P<0.05). Among the suicide attempts, the proportion of suicide attempts with a plan was higher for girls than for boys (62.7% vs 53.2%, P<0.05). Both the prevalence of suicide attempts and the proportion of suicide attempts with a plan increased with age. Factors associated with suicide attempts included poor socioeconomic status, history of bullying, loneliness and anxiety, tobacco and alcohol use, and weak family and social relationships. In conclusion, suicide attempts are frequent among young adolescents in low-income and middle-income countries. Girls and older adolescents tend to make suicide attempts with a plan. The data demonstrate the need to strengthen suicide intervention and prevention programs for young adolescents in low-income and middle-income countries.
    Study name: Global School-Based Student Health Survey (GSHS)
    Matched MeSH terms: Age Factors
  3. Sembajwe G, Cifuentes M, Tak SW, Kriebel D, Gore R, Punnett L
    Eur Respir J, 2010 Feb;35(2):279-86.
    PMID: 19741032 DOI: 10.1183/09031936.00027509
    The aims of this study were to quantify and describe the variations in respiratory symptoms and diagnosis prevalence across regions of the world according to national income. In 2002 and 2003, the World Health Organization implemented the World Health Survey (WHS), which used a standardised survey instrument to compile comprehensive baseline information on health and healthcare expenditure. We analysed the WHS data to assess the global patterns of self-reported wheeze and doctor-diagnosed asthma, two commonly reported measures of respiratory health. In total there were 308,218 participants with complete records, from 64 countries. The weighted mean age of the survey population was 43 yrs. Global prevalence of current wheezing symptoms ranged from 2.4% in Vietnam to 24% in Brazil; the prevalence of diagnosed asthma ranged from 1.8% in Vietnam to 32.8% in Australia. Overall, the prevalence of symptoms and diagnosis showed a U-shaped pattern with the largest prevalence reported in low- and high-income countries. The smallest prevalence was consistently found in middle-income countries. These WHS analyses have provided global prevalence estimates of wheeze and doctor-diagnosed asthma using data gathered simultaneously and consistently across six continents. These findings support the need for continued global respiratory illness surveillance for disease prevention, health policy and management.
    Study name: World Health Survey (Malaysia is a study site)
    Matched MeSH terms: Age Factors
  4. Cheah YK, Teh CH, Lim KH
    DOI: 10.1177/0022042618821195
    The objective of the present study is to examine the sociodemographic determinants of amount of smoking knowledge in Malaysia. Data are obtained from the Global Adult Tobacco Survey (GATS). The GATS uses a multistage stratified sampling. A total of 4,153 respondents are used for analyses. The effects of sociodemographic factors on smoking knowledge are examined using a negative binomial regression. Age, wealth index, education, ethnicity, house locality, and smoking behavior are significantly associated with smoking knowledge. In particular, there are negative relationships between smoking knowledge and higher wealth index, less-educated individuals, Chinese, rural dwellers, and smokers. The present study concludes that sociodemographic factors play an important role in determining smoking knowledge. Hence, as an intervention measure directed toward improving the knowledge of smoking among Malaysian population, effective policies should pay special attention to individuals who are likely to have poor information on smoking.
    Study name: Global Adults Tobacco Survey (GATS-2011)
    Matched MeSH terms: Age Factors
  5. Nurul Balqis Md Dzali, Mohd Nizam Zahary, Nor Hidayah Abu Bakar, Hasnan Jaafar, Wan Rohani Wan Taib
    Brain tumour occurrence in Malaysia demonstrates an increasing trend from year to year among adults and the second most common cancer among children. Thus, the expansion of numerous research for novel therapy and treatment are necessary. The distribution of brain tumour in a specific population is important to provide substantial information about the current trends for developing new diagnostic technique and research. Consequently, this study is opted to provide descriptive data of brain tumour in Hospital Universiti Sains Malaysia (USM). 217 brain tumour cases were collected from the hospital record between 2011 and 2014. The brain tumour cases were confirmed by pathologists according to WHO classification and grading. Descriptive analysis was evaluated by using Microsoft Excel and IBM SPSS version 22. Gender preponderance in this study shows very little difference. The most common adult primary brain tumour in this study was meningioma (32.7%) followed by glioblastoma (7.8%), a type of diffuse astrocytic tumour. According to age factor, brain tumour distribution pattern shows an increasing trend as the age increases and meningioma is the most common among the elder patients. Secondary tumour takes more than 10% from overall percentage of brain tumour cases. In conclusion, the descriptive data presentation in this study is very helpful to provide baseline information on the current brain tumour occurrence in this region.
    Matched MeSH terms: Age Factors
  6. Ch'ng CC, Ong LM, Beh KKM, Md Yusuf WS, Chew TF, Lee ML, et al.
    Nephrology (Carlton), 2020 Aug;25(8):644-651.
    PMID: 31900988 DOI: 10.1111/nep.13689
    AIM: Many patients, especially the elderly, who require renal replacement therapies (RRT) have delayed or rejected dialysis for various reasons. Current dialysis guidelines may not be relevant for the elderly or frail patients. We aim to determine survival advantage of initiating dialysis in patients deemed to require RRT.

    METHODS: This was an observational cohort on incident end-stage kidney disease (ESKD) patients from January 1, 2007 to December 31, 2008. The primary outcome was all-cause mortality. Patients contributed person-time from the date of ESKD diagnosis until death, transplant or end of study on December 31, 2014, whichever occurred first. An extended Cox regression model with time-varying exposure to dialysis was used to account for immortal time bias.

    RESULTS: Of 3990 incident ESKD patients included, 70.2% patients initiated dialysis; 78.8% with haemodialysis (HD) while the remaining 21.2% with peritoneal dialysis (PD). Dialysis reduced hazard of death in both elderly and non-elderly patients even after controlling for comorbidities (hazard ratio [HR] 0.58, 95% confidence interval [CI] 0.50, 0.68 and HR 0.76, 95% CI 0.69, 0.85, respectively). HD was protective in both the elderly and non-elderly (HR 0.53, 95% CI 0.45, 0.63 and HR 0.71, 95% CI 0.64, 0.80, respectively). PD significantly reduced risk of death compared to no dialysis in the elderly but not in the non-elderly.

    CONCLUSION: Dialysis improved survival in all incident ESKD patients. The findings suggested a larger protection offered by HD. Although improvement in survival from initiating dialysis was large, its true benefit should take overall quality of life into account. SUMMARY AT A GLANCE This observational study showed that initiation of dialysis improves the survival of end-stage kidney disease (ESKD) patients of all age groups, but the quality of life is an important aspect that has not been explored.

    Matched MeSH terms: Age Factors
  7. Ahammad J, Kurien A, Shastry S, Shah HH, Nayak D, Kamath A, et al.
    Int J Lab Hematol, 2020 Apr;42(2):180-189.
    PMID: 31889401 DOI: 10.1111/ijlh.13148
    INTRODUCTION: Thromboelastography (TEG) is a whole blood clotting assay largely used in major surgeries and trauma to monitor patients' in vivo hemostatic status. Standardization of kaolin-activated citrated whole blood thromboelastography is not done in the Indian population. This study primarily aims to derive reference ranges of kaolin-activated TEG for healthy volunteers in the Indian population. Secondarily, it aims to study the age- and gender-related hemostatic changes in the study population.

    METHODS: A total of 120 healthy volunteers were enrolled (55 adult males, 32 adult females, and 33 children). The volunteers were interviewed for any bleeding history or drug intake which affects coagulation. Kaolin-activated TEG was performed on citrated whole blood, and parameters including R-time, K-time, angle, MA, LY30, and CI were analyzed.

    RESULTS: Derived reference range for total volunteers irrespective of age and sex were as follows: R-time: 3.8-10.6, K-time: 1.2-3.1, angle: 44.9-72.0, MA: 41.2-64.5, LY30: 0-9.9, and CI: -3.7 to 3.4. Statistically significant difference was observed in different age and sex groups for R-time, K-time, and angle. About 40% of the volunteers had at least one abnormal parameter according to the manufacturer's reference range which decreased to 12.5% when the derived reference ranges were considered.

    CONCLUSION: Gender- and age-related variances were observed in reference ranges of our population and which was also differed from the other ethnic population. Many of our healthy volunteers were categorized as coagulopathic when manufacturer's reference range was considered. So, it is important to derive the reference range of the target population before using the TEG into clinical practice.

    Matched MeSH terms: Age Factors
  8. Ghani Hilmi M, Ikhwanuddin M
    Pak J Biol Sci, 2020 Jan;23(5):708-714.
    PMID: 32363828 DOI: 10.3923/pjbs.2020.708.714
    BACKGROUND AND OBJECTIVE: The accumulation of lipofuscin (LF) is an alternative technique to identify age of crustacean species. However, the exact sites and the level of the LF concentration were unknown especially for different sexes of blue swimming crab, Portunus pelagicus. Thus, the present study was aimed to identify which part of the eyestalk of P. pelagicus contains more LF levels in order to establish a specific target part of samples.

    MATERIALS AND METHODS: Thus, crab samples for this study were sampled from the wild habitat at Setiu wetlands, Terengganu, Malaysia. A total of 100 samples of with the same size (80±5 mm carapace width) were sampled and the eyestalk dissected for LF extraction. The determination of LF sites and levels in the eyestalks organ was taken from the area between the distal tangential layer (DTL) and proximal tangential layer (PTL). The lower part of the eyestalk was taken from the PTL until the end of the eyestalk.

    RESULTS: The upper part of the crab's eyestalk was higher in the males crabs compared to the females crabs. LF index also shown that the upper part of crab's eyestalk have higher concentration compared to the lower part.

    CONCLUSION: The left crab's eyestalk had the higher LF index especially in males compared to females but the total concentration was higher in female crabs. Knowing which part has highly dense accumulation of LF helps in LF detection of the tissue and further helps for age determination for this species.

    Matched MeSH terms: Age Factors
  9. Alhajj MN, Ariffin Z, Celebić A, Alkheraif AA, Amran AG, Ismail IA
    PLoS One, 2020;15(9):e0239232.
    PMID: 32941532 DOI: 10.1371/journal.pone.0239232
    BACKGROUND: The perception of dentofacial esthetics differs considerably between patients and dentists. Patient's expectations regarding his/her esthetics are important and should be assessed ahead of any planning of esthetic treatment. The aim of this study was to explore the differences in perception of orofacial appearance by laypersons with different social and demographic status.

    MATERIALS AND METHODS: Self-administered questionnaires were distributed to 400 subjects. The questionnaire comprised three parts; the first part addressed the demographic variables. The second part queried about dental prosthesis, orthognathic or plastic surgery, and/or ongoing or previous orthodontic treatment. The third part included the Arabic version of the-8-item Orofacial Esthetic Scale (OES-Ar) whose responses were scored in the 5-point Likert scale. These scores were compared by different grouping factors (age, gender, marital status, and education) using non-parametric Mann-Whitney U and Kruskal Willis tests with 95% confidence interval (α > 0.05).

    RESULTS: A total of 268 questionnaires were eligible for analysis, representing 67% response rate. The satisfaction with facial profile appearance was the highest (4.0±1.1) followed by facial appearance (3.9±1.1), while the color of teeth was the least satisfying item (3.1±1.3). No significant differences were found between age groups for the mean summary score as well as for each item independently. No significant difference was found between both sexes except for the last item "overall impression". Married subjects rated one item (alignment of teeth) better than their counterparts. Positive perception of orofacial appearance increased significantly with the increase of education level, the perception of the oral health status, and the perception of the general health status.

    CONCLUSION: Good oral health and/or high education level are significant determinants of more positive perception of orofacial esthetic appearance. Patients with these characteristics might be more concerned about their orofacial appearance, and this should be taken into consideration before planning any esthetic restorative dental treatment.

    Matched MeSH terms: Age Factors
  10. Ciminelli G, Garcia-Mandicó S
    J Public Health (Oxf), 2020 11 23;42(4):723-730.
    PMID: 32935849 DOI: 10.1093/pubmed/fdaa165
    BACKGROUND: There are still many unknowns about COVID-19. We do not know its exact mortality rate nor the speed through which it spreads across communities. This lack of evidence complicates the design of appropriate response policies.

    METHODS: We source daily death registry data for 4100 municipalities in Italy's north and match them to Census data. We augment the dataset with municipality-level data on a host of co-factors of COVID-19 mortality, which we exploit in a differences-in-differences regression model to analyze COVID-19-induced mortality.

    RESULTS: We find that COVID-19 killed more than 0.15% of the local population during the first wave of the epidemic. We also show that official statistics vastly underreport this death toll, by about 60%. Next, we uncover the dramatic effects of the epidemic on nursing home residents in the outbreak epicenter: in municipalities with a high share of the elderly living in nursing homes, COVID-19 mortality was about twice as high as in those with no nursing home intown.

    CONCLUSIONS: A pro-active approach in managing the epidemic is key to reduce COVID-19 mortality. Authorities should ramp-up testing capacity and increase contact-tracing abilities. Adequate protective equipment should be provided to nursing home residents and staff.

    Matched MeSH terms: Age Factors
  11. Lim SK, Loh SP
    Med J Malaysia, 1997 Mar;52(1):64-9.
    PMID: 10968055
    Blood glucose concentration was measured in 100 children immediately before and during surgery. These children were randomly assigned to receive either lactated Ringer's (LR) solution or 5% dextrose in lactated Ringer's (5%D/LR) intraoperatively as maintenance and replacement fluids. Blood samples were taken immediately after induction of anaesthesia and at 1/2, 1, 1.5, 2 and subsequent hours. Blood glucose concentration was assayed by a reflectance meter. None of the patients was noted to be hypoglycaemic pre- and intraoperatively. Intraoperative blood glucose concentration increased significantly (p < 0.05) from preoperative levels for both groups of children but the increase in those that received 5%D/LR was significantly greater (p < 0.05) than those who received LR. The number of children who were hyperglycaemic during surgery was also greater in those who received 5% dextrose in lactated Ringer's as their intraoperative fluid. These data suggest that lactated Ringer's alone is a safe and appropriate fluid for intraoperative fluid therapy in children.
    Matched MeSH terms: Age Factors
  12. Xenos P, Kabamalan M, Westley SB
    PMID: 12349008
    Matched MeSH terms: Age Factors
  13. Su YP, Ferraro KF
    J Gerontol B Psychol Sci Soc Sci, 1997 Jan;52B(1):S27-36.
    PMID: 9008679
    Research on health assessments has shown the importance of social relations as a factor influencing health, especially among older people. Drawing upon sociological theories of social integration and social exchange, this research examines two domains of social relations which are expected to influence assessed health. In addition, the study uses a cross-national sample (N = 3,407) of noninstitutionalized older people from the Republic of Korea, Fiji, Malaysia, and the Philippines to determine if modernization conditions the relationships between social relations and health. Results indicate that social integration has a positive effect on subjective health assessments in all nations, whereas social contributions are significant only in Korea. Findings suggest that health assessments by elders in the most modernized nations appear to be much more influenced by the contributions they make to the social order than is the case in nations which are less modernized.
    Matched MeSH terms: Age Factors
  14. Chin CN, Kadir AB, Jeyarajah S
    Med J Malaysia, 1993 Jun;48(2):135-45.
    PMID: 8350788
    This study examined admissions, final diagnoses and mean duration of stay of patients in the Psychiatric Wards at the General Hospital, Kuala Lumpur. The male ward was severely overcrowded by 125% over the maximum bed capacity. The majority were psychotic, mainly schizophrenic. The female ward had 76% occupancy, also mainly psychotic. Neurotics, alcohol dependents and personality disorders formed less than 5% of the admissions. There was no difference in the mean duration of stay of patients of both UKM and GHKL Units stratified for diagnosis and disposal except for newly diagnosed schizophrenics. There is an urgent need for more male psychiatric beds/wards.
    Matched MeSH terms: Age Factors
  15. George R
    Malays J Pathol, 1993 Jun;15(1):25-7.
    PMID: 8277785
    Matched MeSH terms: Age Factors
  16. Nazaimoon WM, Ng ML, Osman A, Tan TT, Wu LL, Khalid BA
    Med J Malaysia, 1993 Sep;48(3):297-302.
    PMID: 8183142
    Fasting growth hormone (GH) level is an important reference level in dynamic tests of GH secretion. Other studies have demonstrated sex and age variation in the rate of GH secretion. We analysed fasting serum samples from 377 normal subjects (193 males and 184 females, age range 6 to 81 years old), using our in-house enzyme immunoassay. We found sex differences in fasting GH levels to be only significant in the prepubertal children (Tanner stage I), being higher in girls than in age-matched boys (p < 0.05). Both sexes showed age-dependent changes in fasting GH levels (p < 0.001); highest levels were achieved at puberty and subsequently declined with advancing age. Hence, the physiological sex difference and age-dependency in GH secretion can also be demonstrated in single fasting samples.
    Matched MeSH terms: Age Factors
  17. Selvarajah S
    Med J Malaysia, 1998 Mar;53(1):42-5.
    PMID: 10968136
    The records of all the glaucoma patients seen at the General Hospital Kuala Lumpur over a five year period were analysed. The racial, age and sex distribution of patients with primary open angle glaucoma and primary angle closure glaucoma was determined. The causes of secondary glaucoma were analysed. As no previous records of glaucoma statistics are available in Malaysia, it is hoped that these findings will form an initial mosaic to build on in the future.
    Matched MeSH terms: Age Factors
  18. Yeow PT
    Med J Malaysia, 1994 Jun;49(2):138-41.
    PMID: 8090092
    A cross-sectional study on a normal clinical myopic population reveals that there is a difference in the pattern of myopic progression between Malays and Chinese in Malaysia. It shows that while myopia in Malays stays relatively constant throughout 10 to 50 years of age, myopia in Chinese progresses rapidly from 10 to 20 years of age, after which it starts to show hyperopic shift, reaching a level of myopia similar to that of Malays at around 35 years of age. In view of the above finding it is postulated that the difference in myopia between the two races may be due to excessive accommodation in Chinese, causing a temporary increase in crystalline lens power and hence an increase in myopia. Because the magnitude of myopia for both races for 10 +/- 1 years age group is relatively high, i.e. about -2.00 D, it is postulated that myopia in these ethnic groups may start much earlier than 10 years of age.
    Matched MeSH terms: Age Factors
  19. Lau LK, Ong AT
    Med J Malaysia, 1980 Sep;35(1):38-40.
    PMID: 7253996
    74 cases of radiologically proven urinary calculi between 1975 and 1979 were analysed by race, sex and age. The relative frequency of single and multiple stones was also studied. The disease was found in all the ethnic groups present in Limbang except for the Punans. Possible reasons for this observation of their apparent absence were given. The absence of patients from one of the Malay Kampongs in Limbang town was also noted.
    Matched MeSH terms: Age Factors
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