Current analysis for the characteristics of preconception body composition in 2 818 nulliparous women
Objective:To explore the characteristics of preconception body composition in nulliparous women,and to provide guidance for preconception care.Methods:A total of 2 818 nulliparous women,who underwent preconception checkups at the First Affiliated Hospital with Nanjing Medical University,were recruited from January 2020 to August 2023.The body composition was detected using bioelectrical impedance analysis.Results:The average age of 2 818 nulliparous women was 28.55±3.27 years old,with an average body mass index(BMI)of 22.46±3.59 kg/m2.About 70.09％(1 975 cases)of preconception women had a high percent body fat,while only 28.57％(805 cases)had a normal percent body fat.Based on body composition characteristics,women with the type of high body fat and normal muscle accounted for the highest proportion(39.78％,1 121/2 818),followed by 24.80％(700/2 818)of high body fat and low muscle,and those with normal body fat and normal muscle only accounted for 14.02％(395/2 818).Then the analysis was stratified by age,differences in the distribution of obesity-related indicators(BMI,visceral fat area,circumference of abdomen,arm circumference)were found among different age groups(P＜0.05),in which the group with age of 25-＜30 showed the lowest proportion,and increased with age.Among all age groups,the proportion of preconception women with low muscle(skeletal muscle mass percentage＜90％)was more than 50％.The group with ≥35 years old accounted for the highest proportion in preconception women with BMI ≥24 kg/m2(39.57％,55/139)and circumference of abdomen ≥80 cm(51.80％,72/139)(P＜0.05).In addition,a correlation analysis showed a significant positive correlation between BMI and body fat percentage,visceral fat area,circumference of abdomen,and arm circumference,respectively(r＞0.80,P＜0.001).Conclusions:Nulliparous women are mainly characterized by a high percent body fat,and women with the age of 35 years old and older mainly manifest as abdominal obesity.Therefore,it is necessary to conduct body composition analysis among preconception women which can help to identify the potential obese population,and reduce the impact of overweight/obesity on the health of preconception women,as well as the long-term impact on maternal and infant health,and provide guidance for preconception eugenics.
PreconceptionNulliparous womenBody compositionBody mass indexPercent body fat
万方数据
