This research is a cross-sectional investigation.
此研究是一个横断面调查。
DESIGN: Cluster sampling and cross-sectional investigation.
设计：整群抽样，横断面调查。
Methods Epidemiological cross sectional investigation was used.
方法系用流行病学横断面调查研究。
Method Cross-sectional investigation was applied to study 1941 elderly aged 60 or over years of age with questionnaire of elderly comprehensive health function.
方法对上海市天平街道1941名60岁以上社区老年人的健康状况进行描述性分析。
Sectional conflict—which also existed between North and South—deserves further investigation.
研究存在于南北之间的地区冲突值得进一步研究。
Methods an investigation in Beijing urban districts was conducted in a cross-sectional survey. A total of 15 000 permanent residents aged 15-69 years as a sample was randomly interviewed.
方法采用现况研究方法，对北京城区15 0 0 0名15 ~ 6 9岁的常住居民进行入户调查，了解其慢性病患病情况及行为危险因素等。
Methods an investigation in Beijing urban districts was conducted in a cross-sectional survey. A total of 15 000 permanent residents aged 15-69 years as a sample was randomly interviewed.
方法采用现况研究方法，对北京城区15 0 0 0名15 ~ 6 9岁的常住居民进行入户调查，了解其慢性病患病情况及行为危险因素等。
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