成都市儿童青少年谷、薯类摄入情况与青春期发育关系

目的分析成都市儿童青少年谷、薯类食物摄入情况与青春期发育的关系。方法采用分层整群随机抽样法选取成都市1902名7~18岁儿童青少年作为研究对象,分别采用食物频率调查表和现场观测收集膳食和青春期发育的数据。结果被调查男生发生初遗的平均年龄为12.8岁,女生发生初潮的平均年龄为12.3岁。已发生初遗男生比未发生初遗者谷类的摄入量高(P<0.0001),而已发生初潮女生较未发生初潮者谷类的摄入量低(P<0.01)。男生的谷类摄入量随青春期发育程度升高而逐渐增加(P<0.0001);发育早期组女生谷类的摄入量最高,女生的薯类摄入量随青春期发育程度升高而逐渐降低(P<0.05)。结论成都市儿童青少年谷、薯类食物的摄入可能与青春期发育相关,且存在性别差异。

Cross-sectional association between consumption of grain / tubers and pubertal development among children and adolescents in Chengdu City

Objective To investigate association between the consumption of grain and tubers and pubertal development of children and adolescents in Chengdu city.Methods Cross-sectional valid data from 1902 children and adolescents aged 7- 18 years in Chengdu were analyzed. Based on food frequency questionnaire,the daily consumption of grain and tubers was calculated. Measurements of pubertal development were conducted among boys / girls. Results The mean age of spermarche was 12. 8,and that of menarche was 12. 3. Boys who had spermarche consumed more grain than those had not yet( P < 0. 0001),while girls who had menarche consumed less( P <0. 01). Consumption of grain was positively associated with pubertal development among boys( P < 0. 0001). Both consumption of grain and tubers were associated with pubertal development among girls( P < 0. 05). Conclusion Consumption of grain and tubers seem to be correlated with pubertal development among children and adolescents in Chengdu,and the association was not the same in each gender.