Yim Wah Mak

Dr. Yim Wah Mak

The Hong Kong Polytechnic University
orcid

Research Focus & Metrics

Academic Career Length

22Years (2005-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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HLHongyan Li
Hongyan Li
HCHui Cao
Hui Cao
Doris Y.P. LeungDoris Y.P. Leung
Doris Y.P. Leung
Yim Wah MakYim Wah Mak
Yim Wah Mak
An outbreak in Wuhan, China in late 2019 of a highly infectious new coronary pneumonia (COVID-19) led to the imposition of countrywide confinement measures from January to March 2020. This is a longitudinal study on changes in the mental health status of a college population before and after their COVID-19 confinement for the first two weeks, focusing on states of psychological distress, depression, anxiety and affectivity. The influence of possible stressors on their mental health were investigated, including inadequate supplies and fears of infection. Five hundred and fifty-five undergraduate students were recruited from Hebei Agricultural University in Baoding, China. The participants completed two online surveys—on anxiety and depression, and on positive and negative affect. One survey was conducted before the confinement and the other was conducted 15–17 days after the start of the confinement. Increases in negative affect and symptoms of anxiety and depression (p-values < 0.001) were observed after 2 weeks of confinement. Inadequate supplies of hand sanitizers, a higher year of study, and higher scores on anxiety and depression were common predictors of increased negative affect, anxiety, and depression across the confinement period. The results suggest that healthcare policymakers should carefully consider the appropriate confinement duration, and ensure adequate supplies of basic infection-control materials.

3 February 2020 in Asia-Pacific Psychiatry
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Journal Article
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Doris Y.P. LeungDoris Y.P. Leung
Doris Y.P. Leung
Yim Wah MakYim Wah Mak
Yim Wah Mak
SLSau Fong Leung
Sau Fong Leung
VCVico Chung Lim Chiang
Vico Chung Lim Chiang
ALAlice Yuen Loke
Alice Yuen Loke
Introduction: The nine‐item Patient Health Questionnaire (PHQ‐9) is widely used to determine the severity of depression in adult populations, but its psychometric properties with regard to adolescents has been poorly explored. The present study aims to identify the factor structure and examine the measurement invariance of this instrument across genders and age groups in a Chinese adolescent sample.Methods: A large sample of Chinese schoolchildren completed the PHQ‐9 in a cross‐sectional survey in Hong Kong (N = 10 933). A confirmatory factor analysis (CFA) to test the factor structure and a multiple group CFA to test the gender and age invariances of the PHQ‐9 in adolescents were conducted. Cronbach alpha was used to assess the reliability of the questionnaire, and Pearson correlations with anxiety, self‐esteem, and perceived control were used to assess its construct validity.Results: The CFA results indicate that a one‐factor model with three pairs of item correlations fitted the PHQ‐9 data well, and measurement invariances by age and gender were supported. The PHQ‐9 also possesses adequate internal consistency (>.84) and is strongly correlated with anxiety (>.77), self‐esteem (<−.57), and perceived control (<−.56) in the expected directions in the overall sample and in the gender and age subsamples.Discussion: The results support the claim that the PHQ‐9 is a reliable and valid scale and can be used to assess and compare depressive severity across ages and genders during the period of adolescence.

6 April 2018 in Primary Health Care Research & Development
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Journal Article
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Yim Wah MakYim Wah Mak
Yim Wah Mak
AKAngela H. F. Kao
Angela H. F. Kao
LTLucia W. Y. Tam
Lucia W. Y. Tam
VTVirginia W. C. Tse
Virginia W. C. Tse
DTDon T. H. Tse
Don T. H. Tse
Doris Y.P. LeungDoris Y.P. Leung
Doris Y.P. Leung
Aim: This study aimed to examine the relationships between socio-economic status, health-promoting lifestyles, and quality of life among Chinese nursing students.Background: Nursing students will be future health promoters, but they may not always adopt the recommended healthy lifestyle. Currently, there are insufficient studies examining the health-promoting lifestyles of Chinese nursing students, and the impact of socio-economic status and health-promoting lifestyle on their health.Methods: This was a cross-sectional survey. Data were collected from nursing students studying in pre-registration nursing programs of a university in Hong Kong. The survey was conducted through a self-administered questionnaire that solicited information regarding their socio-economic status, health-promoting lifestyle, quality of life, and perceptions of the barriers to adopting a health-promoting lifestyle.Findings: A total of 538 students returned completed questionnaires for analysis. Among the health-promoting lifestyle subscales, the participants performed best in interpersonal relations and worst in physical activity, and the vast majority of them did not actively engage in health-risk behaviors. Hierarchical regression analyses revealed that only 5% of the variance in quality of life was explained by socio-economic variables, whereas a total of 24% of the variance was explained when health-promoting lifestyle variables were added. In particular, health responsibility, physical activity, spiritual growth, and stress management were statistically significant predictors of quality of life.Conclusions: Early concerns about how prepared nurses are to take on the role of promoting health still apply today. School administrators should plan the nursing curriculum to include activities that encourage student nurses to participate in health-promoting lifestyles. Future studies are needed to explore the barriers that prevent students from practicing health-promoting behavior.

Alice Yuen LokeAlice Yuen Loke
Alice Yuen Loke
Yim Wah MakYim Wah Mak
Yim Wah Mak
This study explores the association of family process and peer influences with risk behaviors of adolescents. A total of 805 students were recruited from secondary schools. The results showed that adolescents who have parents who are “authoritarian” (OR = 1.856) were more likely to smoke. Adolescents who have conflicts with their parents (OR = 1.423) were more likely to drink. Those who have parents who are “permissive” were less likely to drink (OR = 0.885). Having friends who smoked (OR = 5.446) or drank (OR = 1.894), and friends’ invitation to smoke (OR = 10.455) or drink (OR = 11.825) were the dominant contributors to adolescent smoking and drinking. Interventions are needed that recognize the strength of the parent-child relationship, as well as strengthen family functioning through improved interpersonal, parenting, and monitoring skills.

1 May 2019 in Epidemiology
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Journal Article
Closed access
LHLefei Han
Lefei Han
JRJinjun Ran
Jinjun Ran
Yim Wah MakYim Wah Mak
Yim Wah Mak
LSLorna Kwai-Ping Suen
Lorna Kwai-Ping Suen
PLPaul H. Lee
Paul H. Lee
LYLin Yang
Lin Yang
Background: Although smoking has been recognized as a risk factor for many respiratory diseases, its effects of influenza-associated morbidity and mortality remain controversial. We conducted a systematic review and meta-analysis to assess the impact of smoking on influenza-associated hospital admissions, intensive care unit (ICU) admissions, and deaths. Methods: We searched the databases of PubMed, CINAHL, EMBASE, and the China National Knowledge Infrastructure for all observational studies published between 1 January 2000 and 30 November 2017 on ever-active/secondhand smoking and influenza-associated hospital admissions, ICU admissions, and deaths. We pooled data using random effect models. Results: The initial search retrieved 7495 articles, of which 20 studies were included for systematic review, and 12 studies (eight case–control studies, two cohort studies, and two cross-sectional studies) with 18612 subjects were included in meta-analysis. The overall quality of selected studies was moderate. Ever-active smokers had higher odds of hospital admissions (odds ratio [OR] = 1.5; 95% confidence interval [CI] = 1.3, 1.7) and ICU admissions (OR 2.2; 95% CI = 1.4, 3.4) after influenza infections, as compared with never smokers. No association was observed between ever-active smoking and influenza-associated deaths. We found a positive association between secondhand smoking and influenza-associated hospital admissions, but only in children below 15 years of age. Conclusions: The literature evidence showed that smoking was consistently associated with higher risk of hospital admissions after influenza infection, but the results for ICU admissions and deaths were less conclusive because of the limited number of studies.

1 February 2019 in Pediatrics
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Journal Article
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Yuen Yu ChongYuen Yu Chong
Yuen Yu Chong
Yim Wah MakYim Wah Mak
Yim Wah Mak
SLSui-Ping Leung
Sui-Ping Leung
SLShu-Yan Lam
Shu-Yan Lam
ALAlice Yuen Loke
Alice Yuen Loke
BACKGROUND: Few trials have been conducted to address the psychological difficulties of parents in managing their child’s asthma. Fostering parental psychological flexibility through Acceptance and Commitment Therapy (ACT) may help parents to accept these psychological difficulties and improve their management of childhood asthma. METHODS: In this randomized controlled trial, a 4-session, group-based ACT plus asthma education (ACT group) was compared with an asthma education talk plus 3 telephone follow-ups (control group) to train parents of children diagnosed with asthma. The use of health care services due to asthma exacerbations in children and the psychological well-being of their parents were assessed before, immediately after, and at 6 months after the intervention. RESULTS: A total of 168 parents and their children aged 3 to 12 years with asthma were consecutively recruited in a public hospital in Hong Kong. When compared with the control group, children whose parents were in the ACT group made significantly fewer emergency department visits (adjusted 6-month incidence rate ratio = 0.20; confidence interval [CI] 0.08 to 0.53; P = .001) due to asthma exacerbations at 6 months postintervention. These parents also reported a decrease in psychological inflexibility (mean difference = −5.45; CI −7.71 to −3.30; P = .014), less anxiety (mean difference = −2.20; CI −3.66 to −0.73; P = .003), and stress (mean difference = −2.50; CI −4.54 to −0.47; P = .016). CONCLUSIONS: Integrating ACT into parental asthma education was effective at decreasing parental anxiety and stress and reducing the asthma-related emergency department visits of children at 6 months postintervention.