Browsing by Author "Khoo Yi Yi"
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- PublicationPrevalence and Factors Associated with Smoking Intentions among Non-smoking and Smoking Adolescents in Kota Tinggi, Johor, Malaysia(2014)
;Lim Kuang Hock ;Sumarni Mohamad Ghazali ;Kee Chee Cheong ;Lim Kuang Kuay ;Lim Hui Li ;Teh Chien Huey ;Chan Ying Ying ;Yeo Lay Yen ;Fiona Goh Swee Ching ;Khoo Yi Yi ;Chong Zhuo Lin ;Normala IbrahimAmal Nasir MustafaIntention to smoke is a valid and reliable factor for predicting future smoking habits among adolescents. This factor, however, has received inadequate attention in Malaysia. The present paper elaborates the prevalence and factors associated with intent to initiate or to cease smoking, among adolescent nonsmokers and smokers in Kota Tinggi, Johor, Malaysia. A total of 2,300 secondary school students aged 13-16 years were selected through a two-stage stratified sampling method. A set of standardized questionnaires was used to assess the smoking behavior among adolescents and the inter-personal and intra-personal factors associated with smoking intention (intention to initiate smoking or to cease smoking). Multivariable logistic regression was used to identify factors related to smoking intention. The prevalence of intention to smoke in the future or to cease smoking among non-smoking adolescents and current smokers were 10.7% and 61.7% respectively. Having friends who smoke, social influence, and poor knowledge about the ill effects on health due to smoking showed significant relationships with intention to smoke in the future among non-smokers. Conversely, perceived lower prevalence of smoking among peers, weak contributory social influence, and greater awareness of the ill effects of smoking are factors associated with the intention to cease smoking sometime in the future. The study found that prevalence of intention to initiate smoking is low among non-smokers while the majority of current smokers intended to cease smoking in the future. Existing anti-smoking programmes that integrate the factors that have been identified in the current study should be put in motion to reduce the prevalence of intention to initiate smoking and increase the intention to cease smoking among adolescents - PublicationPrevalence and Factors Associated with Smoking Intentions among Non-smoking and Smoking Adolescents in Kota Tinggi, Johor, Malaysia(Asian Pacific Journal of Cancer Prevention, 2014)
;Lim Kuang Hock ;Sumarni Mohamad Ghazali ;Kee Chee Cheong ;Lim Kuang Kuay ;Lim Hui Li ;Teh Chien Huey ;Chan Ying Ying ;Yeo Lay Yen ;Fiona Goh Swee Ching ;Khoo Yi Yi ;Chong Zhuo Lin ;Normala IbrahimAmal Nasir MustafaIntention to smoke is a valid and reliable factor for predicting future smoking habits among adolescents. This factor, however, has received inadequate attention in Malaysia. The present paper elaborates the prevalence and factors associated with intent to initiate or to cease smoking, among adolescent nonsmokers and smokers in Kota Tinggi, Johor, Malaysia. A total of 2,300 secondary school students aged 13-16 years were selected through a two-stage stratified sampling method. A set of standardized questionnaires was used to assess the smoking behavior among adolescents and the inter-personal and intra-personal factors associated with smoking intention (intention to initiate smoking or to cease smoking). Multivariable logistic regression was used to identify factors related to smoking intention. The prevalence of intention to smoke in the future or to cease smoking among non- smoking adolescents and current smokers were 10.7% and 61.7% respectively. Having friends who smoke, social influence, and poor knowledge about the ill effects on health due to smoking showed significant relationships with intention to smoke in the future among non-smokers. Conversely, perceived lower prevalence of smoking among peers, weak contributory social influence, and greater awareness of the ill effects of smoking are factors associated with the intention to cease smoking sometime in the future. The study found that prevalence of intention to initiate smoking is low among non-smokers while the majority of current smokers intended to cease smoking in the future. Existing anti-smoking programmes that integrate the factors that have been identified in the current study should be put in motion to reduce the prevalence of intention to initiate smoking and increase the intention to cease smoking among adolescents. - PublicationPrevalence Of Young Adult Hypertension in Malaysia and Its Associated Factors: Findings from National Health and Morbidity Survey 2011(2016)
;Mohd Azahadi Omar ;Nining Irfanita Irfan ;Khoo Yi Yi ;Norliza Muksan ;Nur Liana Abdul MajidMuhammad Fadhli Mohd YusoffHypertension is a chronic medical condition and a global public health issue. According to Malaysia's National Health and Morbidity Survey (NHMS) 2006, the prevalence of hypertension among adults aged 18 years and above was 32.2% and had increased slightly in 2011 to 32.7%. However, not much study was done on the prevalence of young adult hypertension in Malaysia. Hence, the aim of this study was to determine this prevalence as well as its associated factors. Data was obtained from the NHMS 2011 study, which utilized a two stage stratified sampling design to conduct a nationwide household survey involving 28,650 individuals. Systolic and diastolic blood pressures, height, weight and blood glucose levels were measured. Binary logistic regression was used to investigate the relationship between prevalence of hypertension and its associated factors. The prevalence of young adult hypertension was 17.3%. After adjusting for other confounding variables, significant association were found in gender [aOR : 1.72 (95% CI : 1.52 - 1.96)], age [aOR : 1.08 (1.07 - 1.09)], ethnic groups (Other Bumiputera vs Malays [aOR : 1.55 (1.27 - 1.88)], obesity (aOR 4.43 95%CI 3.83 - 5.12) and diabetic status [aOR : 1.75 (95%CI 1.43 - 2.15)]. Early screening, detection and treatment of hypertension among the high risk young adults group is recommended to reduce the long-term risk of complications. - PublicationValidation of verbal autopsy: determination of cause of deaths in Malaysia 2013(2017)
;Shubash Shander Ganapathy ;Khoo Yi Yi ;Mohd Azahadi Omar ;Mohamad Fuad Mohamad Anuar ;Chandrika JeevananthanChalapati RaoBackground: Mortality statistics by age, sex and cause are the foundation of basic health data required for health status assessment, epidemiological research and formation of health policy. Close to half the deaths in Malaysia occur outside a health facility, are not attended by medical personnel, and are given a lay opinion as to the cause of death, leading to poor quality of data from vital registration. Verbal autopsy (VA) is a very useful tool in diagnosing broad causes of deaths for events that occur outside health facilities. This article reports the development of the VA methods and our principal finding from a validation study. Methods: A cross sectional study on nationally representative sample deaths that occurred in Malaysia during 2013 was used. A VA questionnaire suitable for local use was developed. Trained field interviewers visited the family members of the deceased at their homes and conducted face to face interviews with the next of kin. Completed questionnaires were reviewed by trained physicians who assigned multiple and underlying causes. Reference diagnoses for validation were obtained from review of medical records (MR) available for a sample of the overall study deaths. Results: Corresponding MR diagnosis with matched sample of the VA diagnosis were available in 2172 cases for the validation study. Sensitivity scores were good (>75%) for transport accidents and certain cancers. Moderate sensitivity (50% - 75%) was obtained for ischaemic heart disease (64%) and cerebrovascular disease (72%). The validation sample for deaths due to major causes such as ischaemic heart disease, pneumonia, breast cancer and transport accidents show low cause-specific mortality fraction (CSMF) changes. The scores obtained for the top 10 leading site-specific cancers ranged from average to good. Conclusion: We can conclude that VA is suitable for implementation for deaths outside the health facilities in Malaysia. This would reduce ill-defined mortality causes in vital registration data, and yield more accurate national mortality statistics.