论文部分内容阅读
目的分析儿童青少年低体重影响因素间的交互作用。方法对福州郊区3 297名中、小学生的生长发育、营养状况及影响因素进行问卷调查。用多因子降维法(MDR)分析因素间的交互作用。据MDR模型,用多因素logistic回归模型估计交互项及其他危险因素的危险度。结果 MDR最佳模型为食肉、吃青菜和吃水果的交互作用,该模型的检验样本平衡检验准确度为62.5%,交叉验证一致性为10/10。调整父亲文化、母亲文化、父亲BMI、母亲BMI等10个因素后,多吃肉类、水果类和青菜的交互作用有统计学意义。结论在低体重儿童青少年中,肉类是主要保护因素,水果是辅助因素,与肉类起着协调作用,青菜和它们有拮抗作用。
Objective To analyze the interaction between low birth weight and influencing factors in children and adolescents. Methods A total of 3 297 primary and secondary school students in Fuzhou suburbs were studied by means of questionnaire survey. Multifactor dimensionality reduction (MDR) was used to analyze the interaction between factors. According to MDR model, multivariate logistic regression model was used to estimate the risk of interaction items and other risk factors. Results The best model of MDR was the interaction of carnivore, eating greens and eating fruits. The test results showed that the accuracy of the MDR was 62.5% and the consistency of cross validation was 10/10. After adjusting for 10 factors such as father’s culture, mother’s culture, father’s BMI and mother’s BMI, the interaction between eating meat, fruits and vegetables was statistically significant. Conclusion In low birth weight children and adolescents, meat is the main protective factor, fruits are cofactors, play a coordinating role with meat, and vegetables and they have antagonistic effects.