Effects of reproductive and demographic changes on breast cancer incidence in China: a modeling analysis.

Background: Breast cancer incidence is currently low in China. However, the distribution of reproductive and lifestyle risk factors for breast cancer among Chinese women is changing rapidly. We quantified the expected effect of changes in breast cancer risk factors on future rates of breast cancer in China.

Family size, fertility preferences, and sex ratio in China in the era of the one child family policy: results from national family planning and reproductive health survey.

Objectives: To examine the impact of the one child family policy in China on fertility, preferred family size, and sex ratio.

Design: Secondary analysis of data from the Chinese cross sectional national family planning and reproductive health survey, 2001. Interviews of representative sample of women aged 15-49.

Anxiety and depression in adolescents in urban and rural China.

The goal was to assess rates of anxiety and depression in adolescents in two areas of Zhejiang Province, China. A cross-sectional survey was carried-out using a self-report questionnaire developed for this study. Participants were middle school students (age range 13-16 years) in an urban and a rural setting.

Health and health care-seeking behavior of adolescents in urban and rural China.

A cross-sectional survey was conducted among 13-18-year-old adolescents in Zhejiang Province, China. Morbidities showed few urban/rural differences. Concerns were mainly related to academic pressure.

Growth status and menarche in urban and rural China.

Objective: To examine the relationship between current age at menarche and growth status in an urban and rural area of Eastern China.

Study Design: Cross-sectional survey: self-completion questionnaire and anthropometry in 12 schools in urban Hangzhou and rural Chunan in Zhejiang Province.

Results: The median menarcheal age calculated by probit analysis was significantly different in the two areas: 12.

Disparities in economic development in Eastern China: impact on nutritional status of adolescents.

Objective: To compare the effects of disparities in economic development in urban and rural Eastern China on the nutritional status of adolescents.

Design: A cross-sectional survey consisting of self-completion questionnaires, anthropometry and haemoglobin measurement.

Setting: Twelve middle schools in an urban and a rural area of Zhejiang Province: Hangzhou, the capital, and Chunan, a poor mountainous area.