[Study on the prevalence of prehypertension among residents living in the communities in Zhejiang].

OBJECTIVE: To investigate the prevalence and related risk factors of prehypertension in Hangzhou, Shaoxing,Jiaxing city, Zhejiang province. METHODS: 3200 people were selected by stratified cluster random sampling method, and statistical methods including chi-square test, and logistic regression through SAS 9.0 were used. RESULTS: The prevalence of pre- hypertension was 45.9%, higher for males and urban population, with significant differences seen between males and female(49.0% vs. 48.0%, P < 0.05), urban and rural areas(59.31% vs. 44.15%, P < 0.05). Data from the multiple factor logistic analysis showed that risk factors of prehypertension would include: older age, types of profession, under low education level, being urban residents, overweight and obesity, hyper triglyceride, and family history of hypertension, with ORs and 95% CI as 0.99 (0.98-0.99), 1.28(1.07-1.28), 1.31(1.10-1.56), 1.50(1.11-2.02), 1.33(0.98-1.81), 1.60 (1.19-2.16)and 1.18(1.00-1.39), respectively. CONCLUSION: Prehypertension prevalence was found high in the studied district, especially in urban residents with low education level. Strategies including reduction on risk factors as obesity and hyper triglyceride through health education as well as lifestyle modification should be taken to hold back the increasing trend on prehypertension in Zhejiang.

[Study on the risk factors of injuries among children at school age, from the families of migrant workers in Hangzhou city].

OBJECTIVE: To explore the risk factors of injuries among school aged children from migrant workers' families, in Hangzhou. METHODS: A cross-sectional survey on 3582 students from eight separate schools in which, four were set for migrant workers' families and the other four were for families of permanent residents. Stratified cluster random sampling method was used. Data was analyzed by unconditional univariate and multivariate logistic regression methods under SPSS 13.0. RESULTS: The incidence rate of injury did not show statistical difference between children of migrant workers or from the permanent residents. The incidence rate of multiple injuries was higher in children from the migrant workers' families. The incidence rates on electric shock occurred at the primary school, drowning among boys at the secondary school and scald/crash/cutting by knives in girls at secondary schools were seen higher among children from the of migrant workers. Results from multivariate analysis showed that factors as gender (OR = 1.20), age (6 - 9 years: OR = 0.70, 10 - 12 years: OR = 1.45), fond of playing Pingpong (OR = 1.35), history of injuries by pets (OR = 1.41), skills on swimming (OR = 1.22), no history of being threatened (OR = 0.68), having harmonious family relations (OR = 0.69) and owning a house by family (OR = 0.76) appeared to be the major one that related to the occurrence of injury. CONCLUSION: Personal behavior as well as family and social environment seemed to be factors affecting the occurrence of injuries among children from the migrant workers' families.