甘肃省2013-2019年20~49岁计划妊娠女性体质指数变化趋势分析

Epidemiological features of body mass index in reproductive-aged women with pregnancy intention in Gansu during 2013-2019

目的:分析甘肃省计划妊娠女性2013-2019年体质指数(BMI)分布特征及其变化趋势。方法:数据来源于“国家免费孕前优生健康检查项目”,研究对象为1006171名甘肃省2013-2019年20~49岁计划妊娠女性。使用粗的和年龄标化的BMI值与低体重、超重和肥胖率,计算各年度分布特征,使用简单线性回归模型、广义线性回归模型或logistics回归模型获得年均增长速度,并比较年度增长速度在不同特征人群中的差异。结果:年龄标化BMI由2013年的21.39kg/m^(2)(95%CI 21.36~21.42)上升到2019年的21.91kg/m^(2)(95%CI 21.89~21.93),P趋势<0.001。多因素调整的年均增加量为0.09 kg/m^(2)(95%CI 0.09~0.09);肥胖标化率从1.86%(95%CI 1.66~2.08)增长至3.25%(95%CI 3.10~3.41),多因素调整的肥胖率年均增长为14.32%(95%CI 13.37~15.27)。同时,河西地区BMI水平和肥胖率增长速度整体高于东南地区,20~25岁、文化程度为高中及以上、工人、人均GDP>7万地区的参检人群BMI和肥胖率增速较快。结论:甘肃省计划妊娠女性BMI水平和肥胖率呈上升趋势。公共卫生决策部门应加强对孕前肥胖流行问题的认识,从孕前开始实施合理有效的肥胖干预策略。

Objective:To describe and analyze the ditribution and trends of pre pregnancy body mass index(BMI)a-mong reproductiveraged women with pregnancy intention in Gansu province.Methods:A total of 1009906 women who participated in the National Free Pre-pregnancy Checkups Project in Gansu province during 2013-2019 was includ-ed.Annual crude and age-adjusted BMI means and underweight,overweight,and obesity prevalence of these women were calculated.Simple linear regression model,generalized linecar regression model,and logistics regression model were used to get the annual trends of BMI means and BMI categories prevalence.Annual trends according to baseline characteristics were also calculated.The difference rate of BMI annual growth was compared among the women with different charateristie.Results:The standardized BMI had inereased from 21.39 kg/m^(2)(95%CI 21.36-21.42)in 2013 to 21.91 kg/m^(2)(95%CI 21.89-21.93)in 2013(P<0.001),with an annual increase of BMI by 0.09(95%CI 0.07-0.10)kg/m^(2) after multifactor adjustment.The standardized obesity rate has increased from 1.86%(95%CI 1.66%-2.08%)in 2013 to 3.25%(95%CI 3.10%-3.41%)in 2019 with an annual increase of obesity by 14.32%(13.37%-15.27%)kg/m^(2) after multifactor adjustment.And the increasing trend of BMI and obesity prevalence of the women in Hexi re-gion of Gansu was faster than which of the women in southeast Gansu.The BMI and obesity prevalence of the women aged 20 to 25 years,the women with senior high school cducation level or above.the women worker,and the women lived in cities of per capita GDP>70000 Yuan had showed faster increasing trend.Conclusion:the pre pregnancy BMI walue and the obesity prevwalence of the women with pregnancy planning is increasing in Gansu province.And public health authorties should strengthen the awareness of the preconception obesity epidemic,and should take more effec-tive stratcgics to control the pre pregnancy obesity.