Multiple imputation analyses of age and multivariable adjusted Alternate Healthy Eating Index for Pregnancy total and component scores by gestational weight gain stratified by pre-pregnancy BMI of participants in the IFPS II.

Multiple imputation analyses of age and multivariable adjusted Alternate Healthy Eating Index for Pregnancy total and component scores by gestational weight gain stratified by pre-pregnancy BMI of participants in the IFPS II.

针对IFPS II队列参与者，按孕前体质指数（BMI，Body Mass Index）分层后再按妊娠期体重增重分组，对经年龄及多变量校正的妊娠替代健康饮食指数（Alternate Healthy Eating Index for Pregnancy）总分与各分项得分开展多重插补分析。