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目的初步分析成都市儿童青少年膳食纤维摄入情况与青春期发育的关系。方法采用分层整群抽样法,选取成都市1 340名9~15岁儿童青少年为研究对象。采用24h膳食回顾法收集调查对象的膳食信息,并由专业人员现场测量及评价调查对象青春期发育情况。根据Tanner青春期发育阶段分期标准将男、女生分为未发育组、发育早期组与发育晚期组,比较不同组间膳食纤维摄入量的差异。结果有效样本量共1 328例。在667例男生中,处于发育早期的男生总纤维和水果纤维摄入量高于处于发育晚期的男生(P<0.05);在651例女生中,处于发育早期的女生水果纤维摄入量高于处于发育晚期的女生(P<0.05)。结论青春期发育较晚的儿童青少年中,膳食纤维的摄入量较高,尤其是来源于水果的纤维,但膳食纤维与青春期发育的关系还有待进一步研究。
Objective To analyze the relationship between dietary fiber intake and adolescent development in children and adolescents in Chengdu. Methods A stratified cluster sampling method was used to select 1 340 adolescents aged 9 to 15 years in Chengdu as study subjects. The dietary information of the surveyed subjects was collected using the 24-hour dietary review method. Professionals were used to measure and evaluate the puberty development of the surveyed subjects. Male and female students were divided into undeveloped group, early developmental group and late developmental group according to Tanner’s adolescent development staging criteria. The differences in dietary fiber intake among different groups were compared. Results A total of 1328 samples were valid. Among 667 male students, the intake of total fiber and fruit fiber of boys in the early stage of development was higher than that of the boys in the late stage of development (P <0.05). Among 651 girls, the fruit fiber intake of girls in early stage was higher than that of boys The girls in late development (P <0.05). Conclusions Dietary fiber intake is higher in children and adolescents with later puberty, especially those derived from fruits. However, the relationship between dietary fiber and puberty remains to be further studied.