中国慢性病前瞻性研究：10个项目地区成年人群饮茶行为特征差异分析

Regional differences in adults＆#39; tea drinking pattern： findings from China Kadoorie Biobank study in 10 areas in China

目的 描述中国慢性病前瞻性研究（CKB）10个项目地区成年人群饮茶行为特征的地区差异.方法 分析CKB 10个项目地区512 891名30 ～ 79岁队列成员基线调查时饮茶行为信息,重点描述饮茶者每周饮茶行为特征的地区差异.结果 10个项目地区全部队列成员中,男性每周饮茶率（50.7％）高于女性（21.3％）.其中湖南项目地区调查人群每周饮茶率最高（男性74.3％,女性76.6％）,河南项目地区最低（男性5.5％,女性1.0％）.除浙江和海口以外的其他8个项目地区,每周饮茶者以饮绿茶为主.青岛项目地区平均每次（男性3.8 g,女性3.1 g）、每日（男性6.2g,女性4.1g）和每周（男性38.4 g,女性25.0 g）茶叶消耗量均最高.结论 CKB的10个项目地区研究人群在饮茶频率、品种、消耗量和浓淡喜好等特征上均存在较为明显的地区差异.

Objective To describe the gender and regional differences in adults＆#39; tea drinking pattem found in China Kadoorie Biobank （CKB） survey, involving half million adults, in 10 areas in China.Methods The baseline survey of CKB was conducted in 5 urban areas and 5 rural areas in China during 2004-2008.The information on tea drinking of 512 891 adults aged 30-79 years was collected and analyzed.Results The overall prevalence of regular tea drinking （i.e., weekly） was 50.7% in males and 21.3% in females.Among 10 areas, Hunan reported the highest regular tea drinking prevalence （74.3% in males, 76.6% in females）, while Henan reported the lowest regular tea drinking prevalence （5.5% in males, 1.0% in females）.Most regular tea drinkers consumed green tea except those from Zhejiang and Haikou.Hunan reported the highest tea consumption per time （3.8 g in males, 3.1 g in females）, per day （6.2 g in males, 4.1 g in females） and per week （38.4 g in males, 25.0 g in females）.Conclusion The adults＆#39; tea drinking pattern i.e.frequency, type, amount of tea and preferred concentration of tea water, varied greatly among the 10 regions covered by CKB study.