Displaying publications 81 - 100 of 3612 in total

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  1. Zain RB, Khoo SP, Yeo JF
    Singapore Dent J, 1995 Jul;20(1):8-10.
    PMID: 9582682
    A clinical analysis of 304 cases of pyogenic granuloma (excluding pregnancy tumour) were obtained from the clinical evaluations submitted by clinicians while sending specimens for biopsy. The average age of the patients with pyogenic granuloma was 28.9 years with a peak age incidence in the second decade. More female patients were affected and the lesions present mainly in the Chinese. The majority of the lesions were ulcerated and pedunculated. The lesions had a mean diameter of 10.8 mm with a mean lesion duration of 6.0 months. The gingiva was the prevalent site for these lesions with a greater number being located in the maxilla. The recurrence rate was found to be 14.1%.
    Matched MeSH terms: Prevalence
  2. Zain RB, Ikeda N, Razak IA, Axéll T, Majid ZA, Gupta PC, et al.
    Community Dent Oral Epidemiol, 1997 Oct;25(5):377-83.
    PMID: 9355776
    The prevalence of oral mucosal lesions in Malaysia was determined by examining a representative sample of 11,707 subjects aged 25 years and above throughout the 14 states over a period of 5 months during 1993/1994. A two-stage stratified random sampling was undertaken. A predetermined number of enumeration blocks, the smallest population unit in the census publication, was selected from each state. With the selected enumeration block, a systematic sample of living quarters was chosen with a random start. The survey instrument included a questionnaire on sociodemographic characteristics and a clinical examination. The clinical examination was carried out by 16 specially trained dental public health officers and the diagnosis calibrated with a final concordance rate of 92%. The age in the sample ranged from 25 to 115 years with a mean of 44.5+/-14.0. The sample comprised 40.2% males and 59.8% females; 55.8% were Malays, 29.4% Chinese, 10.0% Indians and 1.2% other ethnic groups. Oral mucosal lesions were detected in 1131 (9.7%) subjects, 5 (0.04%) had oral cancer, 165 (1.4%) had lesions or conditions that may be precancerous (leukoplakia, erythroplakia, submucous fibrosis and lichen planus) and 187 (1.6%) had betel chewer's mucosa. The prevalence of oral precancer was highest amongst Indians (4.0%) and other Bumiputras (the indigenous people of Sabah and Sarawak) (2.5%) while the lowest prevalence was amongst the Chinese (0.5%).
    Matched MeSH terms: Prevalence
  3. Zain RB, Koh LS
    Dent J Malays, 1988 Nov;10(2):37-40.
    PMID: 3271126
    A study has been conducted on 198 employees of a steel-mill industry. These participants were examined for mucosal lesions in the oral cavity and including the commissures and vermillion borders of the lips. The prevalences of 16 types of lesions are reported.
    Matched MeSH terms: Prevalence
  4. Zain RB, Fei YJ
    Odontostomatol Trop, 1990 Sep;13(3):94-6.
    PMID: 2075149
    Peripheral fibroma/fibrous epulis accounts for the great majority of localised gingival swellings as was substantiated by various reports in the literature. A study was undertaken to investigate the clinical features of a series of 204 localised fibrous gingival swellings received by the Histopathology Laboratory, Department of Oral Surgery, National University of Singapore. The female patients were more affected than the male patients and the lesions occurred predominantly among the Chinese. The lesions were mainly pedunculated and most commonly occurred in anterior maxilla. The recurrence rate was about 10.3%. In conclusion the results obtained in this study were overall in agreement with those of other authors.
    Matched MeSH terms: Prevalence
  5. Zailiza Suli, Nur Zawani Jalaluddin, Hazariah Abdul Halim
    MyJurnal
    Introduction: Obesity is a major public health concern worldwide. The increasing prevalence of obesity in all ages can cause chronic illnesses, such as Type 2 Diabetes Mellitus and Cardiovascular Diseases. The Body Mass Index (BMI) is generally used to classify an adult population as underweight (BMI =25.0 kgm-2) or obese (BMI >=30.0 kgm-2). The normal BMI range lies between 18.5 and 24.99 kgm-2. Physical activity is an important component of lifestyle interventions for weight loss and the prevention of weight regain. The objective of this study was to assess the impact of physical activity in reducing the obesity among the selected participants in Taman Impian Ehsan, Hulu Langat. Methods: This study was a one-group pretest-posttest quasi-experimental design. The physical activity program took place three times a week for six months started from June to December 2018 which is a part of KOSPEN activity. Results: Thirty participants were recruited in the program. For pre- intervention study, 4 participants have normal body weight (BMI 18.5-24.99), 12 participants were overweight (BMI 26.0 to 30.0kgm-2) and 14 participants were obese (BMI > =30.0 kgm-2). Twenty six of participants were retained in the program while the rest quitted. Post-intervention study shows that seven participants have normal BMI, 10 partici-pants were still overweight and nine participants still categorized as obese. Post-intervention study showed that 17 participants managed to lose weight with minimum of 1.2 kg and maximum of 22.6 kg. The average reduction of the body weight was 5%. Conclusion: Physical activity is one of most feasible approach that can assist communities in developing healthy behaviours that promote weight loss and maintain ideal body weight.
    Matched MeSH terms: Prevalence
  6. Zailinawati AH, Ariff KM, Nurjahan MI, Teng CL
    Asia Pac J Public Health, 2008;20(3):224-33.
    PMID: 19124316 DOI: 10.1177/1010539508316975
    This study aimed to determine the prevalence and pattern of insomnia in a Malaysian population aged 30 to 70 years. The sample consisted of 1611 subjects, recruited by stratified random sampling and interviewed using a semistructured questionnaire conducted in 2004. This was a community-based survey in 4 Malaysian states. The prevalence of insomnia symptom was 33.8%, and 12.2% of the subjects had chronic insomnia. Insomnia was more common among elderly; those who were separated, divorced, or widowed; and those who smoked at bedtime. Subjects with insomnia had a higher prevalence of feeling depressed (12.7), loss of concentration (19.1%), exhaustion (17.2%), poor memory (9.2%), decreased work productivity (6.4%), and perceived poor health status (40.9%; all, P < .05). A total of 22.2% of those with insomnia had excessive daytime sleepiness based on their Epworth Sleepiness Score (P =
    Matched MeSH terms: Prevalence
  7. Zailinawati AH, Teng CL, Kamil MA, Achike FI, Koh CN
    Med J Malaysia, 2006 Jun;61(2):162-7.
    PMID: 16898306 MyJurnal
    The prevalence of pain complaints as a reason for patient-doctor encounters in the local primary care setting is unknown. We performed a cross-sectional survey of such encounters in one public primary care clinic (KK) and 17 general practice clinics (GP), from the city of Seremban, Negeri Sembilan, Malaysia. Reasons for visits were recorded by doctors in KK and medical students in GP using a structured questionnaire. Morbidity data was coded using the International Classification of Primary Care (ICPC-2). A total of 2234 encounters were recorded (80.9% from KK, 19.1% from GP). The overall prevalence of pain complaints was 31.9% with a significant difference between the two cohorts (KK 28.7% and GP 45.2%, p<0.001). Musculoskeletal pain complaints were more common in KK than GP (40.9% versus 29.7%, p<0.05). Of the 3 main ethnic groups in Malaysia (Malay, Chinese and Indian) the Indian patients at KK had the highest prevalence of pain complaints and the Chinese at the GP had the lowest. Thus pain was a common complaint in the two different primary care settings studied. Some of the differences observed are probably due to the differences in the healthcare seeking behaviour of patients consulting at these two settings as well as differences in the payment systems.
    Matched MeSH terms: Prevalence
  8. Zaid, K., Jamal, H.H.
    MyJurnal
    Background: A cross sectional study was carried out to determine the prevalence of microbiological contamination in ready- to-eat food and factors affecting it in Melaka from February 2008 till May 2008 in collaboration with the Food Safety and Quality Unit and District Health Offices in Melaka Tengah, Alor Gajah and Jasin.

    Methods: A purposive sampling of 101 food premises was carried out and 202 ready- to-eat food samples were collected and analysed microbiologically using standard methods. A total of 202 food handlers were randomly selected for questionnaire interview while rectal and nasal swabs were taken from them to determine their healthy carrier status of pathogenic food bacteria.

    Results: Results showed that the overall prevalence of microbiological contamination in ready- to-eat food was 35.1%, while prevalence by type of food was 42.0% for main dishes and 9.8% for staple food. The majority of the contaminations were due to coliforms (14.9%), total plate counts (12.4%) and Staphylococcus aureus (3.5%). The mean score for food premise inspection was 77.21 ± 10.32 and the prevalence of healthy carrier status of pathogenic food bacteria among the food handlers was 15.8%. The level of food handling practices among food handlers was influenced by sex (p=0.012) and formal training on food handling courses (p=0.009). There was a significant negative correlation between age and level of food handling practices among the food handlers (r = -0.163; p = 0.02). Poor food handling practices (p=0.02) and poor hygiene status among the food handlers (p
    Matched MeSH terms: Prevalence
  9. Zaid ZA, Chan SC, Ho JJ
    Singapore Med J, 2007 Oct;48(10):895-9.
    PMID: 17909672
    A study was done between December 2005 and January 2006 to determine the prevalence of emotional disorders among medical students in a private medical school in Ipoh, Perak, Malaysia and to determine the demographical characteristics, contributing factors and the key person consulted for emotional problems.
    Matched MeSH terms: Prevalence
  10. Zahari, N.M., Ismail, R., Bunyarit, S.S., Shafiei, Z., Al Rawenduzy, K.C.M.A.
    Malaysian Dental Journal, 2007;28(1):45-50.
    MyJurnal
    Actinobacillus actinomycetemcomitans is considered a major pathogen in periodontal disease. The aim of this study was to determine the prevalence of A. actinomycetemcomitans from 46 subjects aged 20-24 years old of who were all periodontally healthy Malays.
    Matched MeSH terms: Prevalence
  11. Zahari N, Mat Bah MN, A Razak H, Thong MK
    Eur J Pediatr, 2019 Aug;178(8):1267-1274.
    PMID: 31222391 DOI: 10.1007/s00431-019-03403-x
    Limited data are available on the survival of patients with Down syndrome and congenital heart disease (CHD) from middle-income countries. This retrospective cohort study was performed to determine the trends in the prevalence and survival of such patients born from January 2006 to December 2015 in Malaysia. Among 754 patients with Down syndrome, 414 (55%) had CHD, and no significant trend was observed during the 10 years. Of these 414 patients, 30% had lesions that closed spontaneously, 35% underwent surgery/intervention, 9% died before surgery/intervention, and 10% were treated with comfort care. The overall mortality rate was 23%, the median age at death was 7.6 months, and no significant changes occurred over time. The early and late post-surgery/intervention mortality rates were 0.7% and 9.0%, respectively. Most deaths were of non-cardiac causes. The overall 1-, 5-, and 10-year survival rates were 85.5%, 74.6%, and 72.9%, respectively. Patients with severe lesions, persistent pulmonary hypertension of the newborn, atrioventricular septal defect, and pulmonary hypertension had low survival at 1 year of age.Conclusion: The prevalence of CHD in patients with Down syndrome is similar between Malaysia and high-income countries. The lower survival rate is attributed to limited expertise and resources which limit timely surgery. What is Known: • The survival of patients with Down syndrome with congenital heart disease (CHD) has improved in high-income countries. However, little is known about the survival of patients with Down syndrome with CHD from middle-income countries. • In the Caucasian population, atrioventricular septal defect is the most common type of CHD associated with Down syndrome. What is New: • In middle-income countries, the prevalence of CHD is the same as in high-income countries, but with a lower survival rate. • In the Asian population, ventricular septal defect is the most common type of CHD in patients with Down syndrome.
    Matched MeSH terms: Prevalence
  12. Zahari MM, Hwan Bae W, Zainal NZ, Habil H, Kamarulzaman A, Altice FL
    Am J Drug Alcohol Abuse, 2010 Jan;36(1):31-8.
    PMID: 20141394 DOI: 10.3109/00952990903544828
    To examine the association between HIV infection and psychiatric disorders among prisoners, where mental illness, substance abuse, and HIV are disproportionately represented.
    Matched MeSH terms: Prevalence
  13. Zaahirah Mohammad, Norliza Ahmad, Halimatus Sakdiah Minhat
    MyJurnal
    Introduction: Overweight and obesity among adults, especially young adults have been increasing for the past 20 years and is an emerging public health concern all over the world, including Malaysia. This study aims to explore the determinants of overweight and obesity among undergraduate students residing in Universiti Putra Malaysia. Methods: A cross-sectional study using random sampling was conducted in three residential colleges. Independent variables include socio-demographic factors, knowledge on physical activity and dietary intake, lifestyle (physical activity, dietary intake, sleep duration and quality and smoking status) and stress. Data was collected using a vali-dated and reliable self-administered questionnaire and anthropometric measurement (weight and height were mea-sured to determine body mass index). IBM Statistical Package for Social Science (SPSS) version 23 was used for data analysis. Multiple logistic regression was employed to find the determinants of overweight and obesity among the respondents. Significant level was set at less than 0.05. Results: A total of 494 respondents participated with 98.8% response rate. Overweight and obesity prevalence among the respondents was 38.1% with 22.9% and 15.9% of the respondents were overweight and obese respectively. The significant associated factors were age group of 24 years and above (AOR=2.671, p=0.04), male (AOR=1.818, p=0.04), Malay ethnicity (AOR=5.34, p=0.008) and Indian ethnicity (AOR=7.155, p = 0.018). Conclusion: Overweight and obesity prevalence among undergraduate students were more than one third. Programmes and policies should be directed to these high-risk groups as identified in this study.
    Matched MeSH terms: Prevalence
  14. Yusuf A, Mamun ASMA, Kamruzzaman M, Saw A, Abo El-Fetoh NM, Lestrel PE, et al.
    BMC Pediatr, 2019 06 29;19(1):213.
    PMID: 31255172 DOI: 10.1186/s12887-019-1581-9
    BACKGROUND: Anemia is not only a major public health problem among children in developing countries, it is also an important predictor for their future growth and development. The objective of this study was to identify possible factors associated with anemia among pre-school children in Bangladesh after removing a cluster effect of the population, and to determine the prevalence of this condition.

    METHODS: Data for this study was extracted from the 2011 Bangladesh Demographic and Health Survey (BDHS-2011). In this survey, data was collected using a two-stage stratified cluster sampling approach. The chi-square test and a two-level logistic regression model were used for further analysis.

    RESULTS: Data from 2231 children aged 6-59 months were included for analysis. The prevalence of child anemia was noted to be 52.10%. Among these anemic children, 48.40% where from urban environment and 53.90% were from rural areas. The prevalence of mild, moderate and severe anemia among children was 57.10, 41.40 and 1.50% respectively. The two-level logistic regression model revealed that the following factors were associated with childhood anemia: children of anemic mothers (p 

    Matched MeSH terms: Prevalence
  15. Yusoff SM, Bahar R, Hassan MN, Noor NHM, Ramli M, Shafii NF
    Oman Med J, 2020 Sep;35(5):e177.
    PMID: 33083035 DOI: 10.5001/omj.2020.95
    Objectives: Red blood cell (RBC) immunization is a common complication in blood transfusion recipients. Patients with chronic kidney disease (CKD) eventually develop anemia, which is multifactorial, and requires regular blood transfusions, which exposes patients to the development of RBC antibodies. We sought to determine the prevalence and specificity patterns of RBC immunization and its risk factors among transfused CKD patients.

    Methods: We conducted a cross-sectional study over one year from January to December 2018 in the Transfusion Medicine Unit, Hospital Universiti Sains Malaysia. A total of 249 samples were recruited from CKD patients who received a blood transfusion (at least one-pint), which only match for ABO and Rh(D) antigen. The serum was screened for the presence of the RBC antibody using the gel agglutination technique (Diamed gel cards). Samples with positive antibody screening were subjected to antibody identification.

    Results: Of the 249 transfused CKD patients, 31 (12.4%) developed RBC immunization. Thirty (12%) were alloimmunized, and one (0.4%) was autoimmunized. Anti-Mia was the most common antibody (n = 14, 46.7%) among alloantibodies, followed by anti-E (n = 7, 23.3%). There was a significant association between pregnancy history with the development of antibodies whereas, no significant association was found between sociodemographic background, stage of CKD, hemodialysis status, underlying medical illness, and number of packed cell transfusions with the development of RBC antibodies.

    Conclusions: One-eighth of our patient cohort had RBC alloimmunization, and the risk was increased in patients with a history of pregnancy. We propose Rhesus RBC phenotyping and to supply blood match Rhesus antigen in CKD patients, especially patients of reproductive age.

    Matched MeSH terms: Prevalence
  16. Yusoff NM, Shirakawa T, Nishiyama K, Ghazali S, Ee CK, Orita A, et al.
    Int J Hematol, 2002 Aug;76(2):149-52.
    PMID: 12215013 DOI: 10.1007/BF02982577
    Multiplex polymerase chain reaction (PCR) using multiple tandem forward primers and a common reverse primer (MPTP) was recently established as a comprehensive screening method for mutations in X-linked recessive diseases. In the work reported here, MPTP was used to scan for mutations of the glucose-6-phosphate dehydrogenase (G6PD) gene. Mutations in exons 3,4,5,6,7,9, 11, and 12 of the G6PD gene were screened by MPTP in 93 unrelated Malaysian patients with G6PD deficiency. Of the 93 patients, 80 (86%) had identified mutations. Although all of these were missense mutations, identified nucleotide changes were heterogeneous, with 9 mutations involving various parts of the exons. These 9 mutations were G-to-A nucleotide changes at nucleotide 871 of the G6PD gene (G871A), corresponding to G6PD Viangchan, G6PD Mediterranean (C563T), G6PD Vanua Lava (T383C), G6PD Coimbra (C592T), G6PD Kaiping (G1388A), G6PD Orissa (C131G), G6PD Mahidol (G487A), G6PD Canton (G1376T), and G6PD Chatham (G1003A). Our results document heterogeneous mutations of the G6PD gene in the Malaysian population.
    Matched MeSH terms: Prevalence
  17. Yusoff N, Jaafar N, Razak IA, Chew YY, Ismail N, Bulgiba AM
    Community Dent Health, 2008 Mar;25(1):55-8.
    PMID: 18435236
    To determine the prevalence, distribution, severity and treatment need of enamel opacities among 11-12 year-old school children in a fluoridated urban community.
    Matched MeSH terms: Prevalence
  18. Yusoff MSB
    J Taibah Univ Med Sci, 2020 Dec;15(6):439-446.
    PMID: 33318735 DOI: 10.1016/j.jtumed.2020.08.011
    Objective: This study was conducted at the end of the second year of the pre-clinical program to assess differences in psychological status of students enrolled by multiple mini interview (MMI) and personal interview (PI).

    Methods: We adopted a comparative cross-sectional study on pre-clinical medical students who appeared in two different admission tests. The stress, anxiety, and depression levels of students were measured by the depression, anxiety, stress scale (DASS-21), and their burnout level was measured by the Copenhagen Burnout Inventory.

    Results: The stress, anxiety, and depression scores between MMI and PI were not significantly different (p-value > 0.05). The personal, work and client burnout scores between MMI and PI were not significantly different (p-value > 0.05). The prevalence of stress (MMI = 39%, PI = 36.9%), anxiety (MMI = 78%, PI = 67.4%), depression (MMI = 41%, PI = 36.2%) and burnout (MMI = 29%, PI = 31.9%) between MMI and PI cohorts was not significantly different (p-value > 0.05). These results showed similar levels of stress, anxiety, depression, and burnout in students at the end of the pre-clinical phase.

    Conclusions: This study showed similar psychological health status of the pre-clinical students who were enrolled by two different admission tests. The prevalence of stress, anxiety, burnout, and depression among the pre-clinical medical students was comparable to the global prevalence. The results indicate that medical schools can consider implementing either MMI or PI to recruit suitable candidates for medical training.

    Matched MeSH terms: Prevalence
  19. Yusoff MS, Abdul Rahim AF, Baba AA, Ismail SB, Mat Pa MN, Esa AR
    Psychol Health Med, 2013;18(4):420-30.
    PMID: 23140393 DOI: 10.1080/13548506.2012.740162
    Many studies have shown that the prevalence of psychological distress among medical students during medical training is higher than that in general population. A few studies have shown that the prevalence of psychological distress among medical students before the onset of medical training was similar to general population. This study aimed to investigate psychological health of medical students before and during medical training. A one-year prospective study was done on successful applicants who undergo the first year of medical training for 2010/2011 academic session. The stress, anxiety and depression were measured by the DASS-21 at five intervals; during interview (Time 0), two months (Time 1), four months (Time 2), six months (Time 3) and final examination (Time 4) of the first year medical training. The prevalence of unfavourable stress, anxiety and depression before the onset of medical training was 4.1%, 55.6% and 1.8%, respectively. The prevalence of unfavourable stress during medical training ranged between 11.8% and 19.9%. The prevalence of anxiety during medical training ranged between 41.1% and 56.7%. The prevalence of depression during medical training ranged between 12% and 30%. Mean scores of stress and depression before (Time 0) and during medical training (Time 1-4) were significantly different (p 
    Matched MeSH terms: Prevalence
  20. Yusoff MS, Abdul Rahim AF, Baba AA, Ismail SB, Mat Pa MN, Esa AR
    Asian J Psychiatr, 2013 Apr;6(2):128-33.
    PMID: 23466109 DOI: 10.1016/j.ajp.2012.09.012
    Many studies have reported that the prevalence of psychological distress among medical students during medical training was high. However, there are very few studies exploring on the psychological health of prospective medical students. This study aimed to determine the prevalence and associated factors for stress, anxiety and depression symptoms among the prospective medical students. A cross-sectional study was done on two cohorts of applicants to a public medical school. A total of 839 applicants were invited to participate in the study. The 21-item Depression Anxiety Stress Scale was administered to the applicants after they completed interviews. A total of 743 (92.2%) applicants took part in the study. The prevalence of moderate to extremely severe level of stress, anxiety and depression were 3.6%, 54.5% and 1.9%, respectively. Stress was significantly associated with extra-curricular activity (p<0.001) and race (p<0.001). Anxiety was associated with extra-curricular activity (p<0.001), race (p<0.001), mother education level (p=0.002) and CGPA group (p=0.034). Depression was associated with academic performance in class (p<0.001) and race (p=0.004). Prevalence of stress and depression among entering medical students was low; however prevalence of anxiety was high which could be due to worry about the interviews to enter medical course. The associated factors of psychological distress among prospective medical students were related to academic, non-academic, parent education and cultural backgrounds.
    Matched MeSH terms: Prevalence
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