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研究的参与者，以孕前体质指数（BMI）作为分层因素，按妊娠期体重增长进行分组，开展经年龄与多变量校正的妊娠期替代健康饮食指数（Alternate Healthy Eating Index for Pregnancy）总分及各分项得分的多重插补分析。