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摘要:
目的 探究孕中期体力活动与血糖水平及妊娠期糖尿病(gestational diabetes mellitus, GDM)的关联。 方法 采用横断面调查的方法, 于2017-2018年在广州市纳入孕周在20~28周的孕妇1 083人。采用面对面调查收集一般人口学和生活方式等资料, 采用国际体力活动问卷调查过去一周的体力活动, 通过口服葡萄糖耐量试验(oral glucose tolerance test, OGTT)测量孕妇血糖和诊断GDM。运用多重线性回归和Logistic回归分析模型分别探讨不同类型体力活动和静坐行为与血糖及GDM的关联。 结果 36.57%的孕妇体力活动达到推荐值(中高体力活动≥150 min/week)。多重线性回归结果表明, 孕中期妇女总体力活动强度与OGTT-2 h血糖水平呈负相关关系(β=-0.10, P=0.017);运动锻炼和休闲体力活动强度与OGTT-1 h血糖呈负相关(β=-0.11, P=0.042), 未发现其他类型体力活动或静坐时间与血糖之间的关联。Logistic回归分析模型分析未发现各类型体力活动或静坐时间与GDM风险之间的关联。 结论 孕中期妇女体力活动水平较低, 近2/3妇女未达到推荐值。孕中期妇女总体力活动、运动锻炼和休闲体力活动有助于降低餐后血糖。 Abstract:Objective To investigate the association between physical activity and glucose metabolism during the second trimester of pregnancy. Methods A cross-sectional study was conducted from March 2017 to November 2018. 1 083 pregnant women at 20-28 weeks of gestation in Guangzhou, China were recruited into this study. A standardized questionnaire was used to collect demographics and lifestyles. Physical activity was assessed by the international physical activity questionnaire. The participants underwent an oral glucose tolerance test. Multiple linear regression was used to analyze the association between physical activity and blood glucose. Logistic regression analysis model was used to analyze the association between physical activity and gestational diabetes mellitus(GDM). Results Only 36.57% of pregnant women met the recommended level of total physical activity. There was a negative correlation(β=-0.104, P=0.017) between total physical activity and postprandial 2 h blood glucose. Results from different types of physical activities showed that the recreation, sport, and leisure-time physical activity were negatively associated with postprandial 1 h blood glucose(β=-0.114, P=0.042). No significant association was found between either various types of physical activities or sedentary time and GDM. Conclusions Physical activity during mid-pregnancy is inadequate in pregnant women in Guangzhou, China. Higher total physical activity and recreation, sport, and leisure-time physical activity in the second trimester of pregnancy are associated with lower postprandial blood glucose. -
表 1 两组研究对象的基本特征
Table 1. Basic characteristics of participants
人口学特征 合计(N=1 083) 非GDM (n=880) GDM (n=203) t/ χ2值 P值 年龄(岁) 30.11±4.90 29.65±4.74 32.13±5.08 6.63 < 0.001 高龄(≥35岁) 184 (16.99) 124 (14.09) 60 (29.56) 27.98 < 0.001 孕前BMI (kg/m2) 20.57±2.90 20.34±2.68 21.54±3.51 4.45 < 0.001 糖尿病家族病史 158 (14.79) 125 (14.32) 33 (16.50) 0.62 0.432 既往GDM病史 20.60 < 0.001 初产 411 (37.95) 349 (39.66) 62 (30.54) 无 621 (57.34) 501 (56.93) 120 (59.11) 有 51 (4.71) 30 (3.41) 21 (10.34) 孕期被动吸烟 795 (73.41) 239 (27.16) 49 (24.14) 0.77 0.380 孕期饮酒 38 (3.53) 32 (3.65) 6 (2.97) 0.22 0.635 能量摄入(kcal/d) 1 804.7 ± 503.2 1 799.8 ± 508.7 1 825.5 ± 481.0 0.64 0.525 注:定量资料用(x±s)表示, 定性资料用[n(%)]表示。 表 2 GDM和非GDM孕妇的体力活动水平
Table 2. Physical activity levels of GDM and non-GDM pregnant women
体力活动 总体 非GDM GDM t/ χ2值 P值 每周中高等体力活动(min) 179.69±252.76 183.05±256.49 165.13±235.94 0.91 0.363 ≥150 min 396 (36.57) 326 (37.05) 70 (34.48) 0.47 0.494 总体力活动(Met-min/w) 1 900.35±1 656.00 1 954.52±1 718.00 1 665.51±1 334.00 2.62 0.009 日常交通体力活动(Met-min/w) 584.81±618.83 597.05±643.33 521.09±495.55 1.85 0.065 日常生活体力活动(Met-min/w) 468.01±729.30 471.04±733.27 454.87±713.46 0.28 0.776 运动锻炼及休闲体力活动(Met-min/w) 454.21±590.09 465.79±607.90 403.97±503.91 1.51 0.131 静坐时间(h/d) 4.96±2.69 4.98±2.70 4.85±2.64 0.62 0.536 注:定量资料用(x±s)表示, 定性资料用[n(%)]表示。 表 3 体力活动类型与孕中期血糖的关系
Table 3. The relationship between the type of physical activities and blood glucose in the second trimester of pregnancy
体力活动类型 OGTT-空腹血糖 OGTT-1 h血糖 OGTT-2 h血糖 β Sx t值 P值 β Sx t值 P值 β Sx t值 P值 总体力活动(Met-min/w) -0.02 0.01 -1.55 0.120 -0.10 0.06 -1.73 0.084 -0.10 0.04 -2.39 0.017 日常交通体力活动(Met-min/w) -0.02 0.01 -1.27 0.203 0.01 0.06 0.14 0.885 -0.03 0.04 -0.74 0.459 日常生活体力活动(Met-min/w) 0.00 0.01 0.11 0.916 -0.09 0.06 -1.51 0.132 -0.06 0.05 -1.40 0.161 运动锻炼及休闲体力活动(Met-min/w) 0.00 0.01 -0.19 0.851 -0.11 0.06 -2.04 0.042 -0.05 0.04 -1.08 0.283 静坐时间(h/d) 0.00 0.01 -0.10 0.923 0.02 0.02 0.99 0.322 0.02 0.02 1.07 0.286 注:调整年龄、孕前BMI、全家平均月收入、糖尿病家族史、文化程度、是否被动吸烟、每天摄入能量(kcal/d)、调查年份。 表 4 孕妇体力活动与GDM的关系
Table 4. The relationship between physical activities and GDM in pregnant women
体力活动类型* 模型1 模型2 OR (95% CI)值 P值 P趋势值 OR (95% CI)值 P值 P趋势值 总体力活动(Met-min/w) 0.172 0.060 Q1 1.00 1.00 Q2 1.06 (0.69~1.63) 0.791 1.07 (0.67~1.71) 0.773 Q3 1.13 (0.74~1.73) 0.572 1.15 (0.72~1.83) 0.566 Q4 0.77 (0.49~1.21) 0.256 0.66 (0.40~1.10) 0.110 日常交通体力活动(Met-min/w) 0.389 0.549 Q1 1.00 1.00 Q2 0.69 (0.44~1.09) 0.113 0.80 (0.49~1.32) 0.988 Q3 0.89 (0.60~1.33) 0.578 1.04 (0.67~1.61) 0.597 Q4 0.78(0.51~1.20) 0.252 0.83(0.51~1.33) 0.821 日常生活体力活动(Met-min/w) 0.768 0.606 Q1 1.00 1.00 Q2 0.75 (0.49~1.15) 0.184 0.90 (0.57~1.43) 0.651 Q3 0.65 (0.42~1.01) 0.058 0.61 (0.37~1.00) 0.051 Q4 0.93 (0.62~1.40) 0.727 0.84 (0.53~1.33) 0.446 运动锻炼及休闲体力活动(Met-min/w) 0.513 0.157 Q1 1.00 1.00 Q2 0.85 (0.55~1.31) 0.447 0.79 (0.49~1.27) 0.328 Q3 0.94 (0.62~1.43) 0.764 0. 96 (0.61~1.51) 0.856 Q4 0.84 (0.54~1.29) 0.414 0.68 (0.42~1.10) 0.116 静坐时间(h/d) 0.503 0.645 Q1 1.00 1.00 Q2 1.05 (0.69~1.61) 0.808 0.98 (0.61~1.55) 0.915 Q3 1.07 (0.69~1.67) 0.746 1.05 (0.64~1.70) 0.859 Q4 0.84 (0.53~1.31) 0.432 0.86 (0.52~1.42) 0.556 注:Q1~Q4分别表示四等分后对应的4个组。模型1:未调整; 模型2:调整年龄、孕前BMI、全家平均月收入、糖尿病家族史、文化程度、是否被动吸烟、每天摄入能量(kcal/d)、调查年份。 -
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