S. Y. Ho

The impact of community psychological responses on outbreak control for severe acute respiratory syndrome in Hong Kong

Objective: To examine the public’s knowledge and perception of SARS and the extent to which various precautionary measures have been adopted. Design: Cross sectional survey. Setting: General population of Hong Kong at the height of the SARS outbreak (29 March to 6 April 2003). Participants: 1115 ethnic Chinese adults. Main results: Forty per cent did not recognise fomites as a possible mode of transmission whereas 55.1% believed that the infection could be transmitted airborne. A large proportion (30.1%) believed they were very or somewhat likely to contract SARS while only one quarter believed they were very likely to survive if they contracted the disease, benchmarked against an actual case fatality ratio of 2.8% at the time of the survey and 15%–20% according to current best estimates. Precautionary measures directed against person to person droplet spread were generally adopted by most while the prevention of transmission through fomites was not practised as frequently. Respondents with higher risk perceptions and a moderate level of anxiety were most likely to take comprehensive precautionary measures against the infection, as were older, female, more educated people as well as those with a positive contact history and SARS-like symptoms. Conclusions: The findings demonstrate that the promotion of protective personal health practices to interrupt the self sustaining transmission of the SARS virus in the community must take into account background perceptions of risk and anxiety levels of the public at large. Continuing public education about preventive measures should be targeted at the identified groups with low current uptake of precautions.

Suicidality and cultural values among Hong Kong adolescents.

Scholars have proposed that individualistic values resulting from globalization are associated with increasing behavioral and emotional problems among youth in modernizing cultures. This study examined specific individualistic and traditional values in the context of suicidal ideation and behaviors in Hong Kong among community adolescent youths (N=2427) ages 14-18 years. Participants indicated the extent to which self-direction/independence and obedience/respect for elders were important to them. They also reported on four progressive levels of suicidality: whether in the last year they had experienced suicidal ideation, made plans for a suicide attempt, attempted suicide, and (for attemptors) made a serious attempt requiring medical attention. After controlling for quality of family relationships and depressive symptoms, at least one of the values predicted suicidality at all but the highest level. There were sex-specific associations between values and suicidality. In general, endorsement of self-direction was correlated with reduced risk of suicidality for boys and was irrelevant to girls. In contrast, traditional emphases on obedience and respect for elders were more frequently protective against suicidality for girls and were inconsistent predictors for boys. The relationship between values and suicidality was generally independent of the effect of family relationships and depressive symptoms. Thus, values were associated with adolescent suicidality, but not consistently in the direction predicted by some theorists, and the association depended upon the adolescents sex.

Smoking and depressive symptoms in Chinese elderly in Hong Kong

Objective:  To examine the association between smoking and depressive symptoms among Chinese elderly in Hong Kong.

Overweight, obesity, weight-related concerns and behaviours in hong kong chinese children and adolescents

AIM To study the prevalence of overweight and obesity, and weight-related concerns and behaviours among overweight, obese and non-overweight children and adolescents. METHODS We carried out a cross-sectional survey of all Chinese students in primary schools in the Central and Western District of Hong Kong in March 2002. Thirty-one of 32 schools participated, and 5402 boys and 5371 girls aged 8 to 15 y who completed a standardized questionnaire were included. We used the International Obesity Task Force definition (IOTF reference) to define overweight and obesity. RESULTS The prevalence (95% CI) of overweight was 16.4% (15.7-17.1%) (19.9% in boys, 12.9% in girls), and that of obesity was 7.7% (7.2-8.2%) (10.3% in boys and 5.1% in girls). The combined prevalence of overweight and obesity was similar to that based on the local reference. Overweight children had more concerns about their weight than obese children. They were more likely than obese children to feel fat, wish to be lighter, diet and exercise to lose weight. Although obese children were heavier, they did not make more effort to lose weight than overweight children. CONCLUSIONS The differences in weight-related concerns and behaviours among overweight, obese and non-overweight children suggested good validity of the IOTF reference and the self-reported data. The differences between overweight and obese children suggested that the two groups had different psychological states and that they needed different weight management programmes and other intervention strategies.

The Perceptions of Adolescents, Parents and Teachers on the Same Adolescent Health Issues.

The aim of this study was to explore and compare the views of Hong Kong Chinese adolescents, parents and teachers on the same adolescent health issues. A total of 22 focus groups were conducted with Form 1 students (aged from 11 to 13) who attended the Basic Life Skills Training program organized by the Student Health Service, Department of Health in Hong Kong. The program covered a wide range of topics including emotions, self-image, stress management, drinking, smoking and substance abuse, self-esteem and interpersonal skills. Responses from the three types of participants were somewhat different and inconsistent on the issues of changes during puberty, stress and stress management, smoking, drinking and substance abuse. Compared to the West, Chinese adolescents tended to report more stress from studying and under-report socially undesirable behaviour. The use of focus groups was recommended as an effective method of collecting qualitative data with Chinese populations. Focus groups can help maximize data collection, and sometimes, the groups can also help different individual members to gain more insights or new ideas.

A pilot study on mortality and smoking in Hong Kong

No epidemiological study on the mortality attributable to smoking has been carried out in Hong Kong. Indirect local estimates have been derived from western data, but these figures may be subject to flaws caused by differences between Hong Kong and the West in the stage of the smoking epidemic, background disease rates and exposure to other risk factors. The weakness of these indirect estimates had been challenged by the Tobacco Institute in Hong Kong (Fletcher, 1995). Epidemiological studies are urgently needed to produce more direct evidence on the burden of local deaths attributable to tobacco. The results would provide the first assessment of the tobacco epidemic and provide strong support for tobacco control measures in Hong Kong.