成都市儿童青少年富含蛋白质食物摄入与青春期发育关系

目的探讨成都市儿童青少年富含蛋白质食物摄入与青春期发育的关系。方法采用整群抽样法选取成都市1669名7~15岁儿童青少年作为研究对象,采用食物频率问卷收集富含蛋白质食物的摄入情况,利用现场观测了解其青春期发育状况,通过秩和检验进行组间比较分析二者关系。结果成都市男生红肉及白肉摄入量均随睾丸体积增大而增加(P<0.05);已初遗男生红肉、白肉及奶类摄入量均高于未初遗者(P<0.05);红肉及白肉摄入量均随发育程度的升高而增加(P<0.05),发育早期组男生奶类摄入量较多(P<0.05)。女生豆类摄入量随乳房发育水平升高先减少后增加(P<0.05),奶类摄入量乳房未发育者明显高于乳房已发育者(P<0.05);已初潮女生红肉摄入量高于未初潮者(P<0.05),豆类、水产类、蛋类及奶类摄入量均低于未初潮者(P<0.05);红肉摄入量随发育程度升高而增加(P<0.05),豆类、水产类、蛋类及奶类摄入量随发育程度升高而减少(P<0.05)。结论成都市儿童青少年富含蛋白质食物摄入与青春期发育有关,且不同类别食物对青春期发育的影响存在性别差异。

Cross-sectional association between food rich in protein and pubertal development among children and adolescents in Chengdu City

Objective To explore the association between food rich in protein and puberty development among children and adolescents in Chengdu city. Methods A total of 1669 children and adolescents aged 7- 15 years were recruited in Chengdu with cluster sampling. Measurement of pubertal development was conducted among boys / girls and information about consumption of foods rich in protein was collected from food frequency questionnaire. Rank sum test was used to compare food intakes between different pubertal groups. Results Among boys,the consumption of red meat and white meat increased with increasing degree of testis volume( P < 0. 05). Compared with boys who had spermarche,consumption of red meat,white meat and dairy and dairy products were lower in the boys who did not( P < 0. 05). The consumption of red meat and white meat increased with increasing degree of pubertal group and consumption of dairy and dairyproducts was highest in the early pubertal group( P < 0. 05). Among girls,bean intake was higher in the B1 and B5 group of breast development and consumption of dairy and dairy product was highest in the B1 group( P < 0. 05). Compared with girls who had menarche,red meat intake was lower,however,consumption of dairy and dairy product were higher in the girls who did not( P < 0. 05). The intake of red meat increased with increasing degree of pubertal group in girls,however,the consumption of bean,fish and shellfish,egg and dairy and dairy product decreased( P < 0. 05). Conclusion The consumption of foods rich in protein were associated with pubertal development among children and adolescents in Chengdu. However,the different influence between genders needs to be further studied.