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第46卷第3期       李红乔,黄玲玲,王欣茹,等. 育龄女性体力活动水平及静坐时间与月经周期异常的关联研究[J].
                  2026年3月                    南京医科大学学报(自然科学版),2026,46(3):396-402,412                     ·399 ·


                                                      表1   研究人群基本特征
                                             Table 1 Characteristics of the study participants
                                                                Regular menstrual cycles  Irregular menstrual cycles
                            Variable             Total(n=1 259)                                             P
                                                                     (n=915)              (n=344)
                 Age(years,x ± s)                 25.0 ± 5.30        25.2 ± 5.20          24.4 ± 5.6       0.009
                 BMI[kg/m ,M(P25,P75)]         0 020.3(18.9,22.0)  0 020.3(19.1,21.9)  0 020.0(18.7,22.0)  0.105
                        2
                 Educational level[n(%)]                                                                  <0.001
                   Doctoral student            0 0.060(4.8)          42(4.6)0.            18(5.2)0.
                   Postgraduate                0 .0338(26.8)         278(30.4)0.          60(17.4).
                   Bachelor                    0 .0230(18.3)         171(18.7)0.          59(17.2).
                   Below bachelor              0 .0631(50.1)         424(46.3)0.         207(60.2)0.
                 Major in medical[n(%)]                                                                   <0.001

                   Yes                         0 .0407(32.3)         327(35.7)0.          80(23.3).
                   No                          0 .0852(67.7)         588(64.3)0.         264(76.7)0.
                 Age at menarche(years,x ± s)  0 013.2(1.5)         13.1(1.5)000         13.5(1.6)000     <0.001
                 Acne[n(%)]                                                                                0.619

                   Yes                         0 .0243(19.3)         173(18.9)0.          70(20.3).
                   No                          0.1 016(80.7)         742(81.1)0.         274(79.7)0.
                 Hair loss[n(%)]                                                                          <0.010
                   Yes                         0 .0351(27.9)         234(25.6)0.         117(34.0).0
                   No                          0 .0908(72.1)         681(74.4)0.         227(66.0).0
                 Dietary Habits[n(%)]                                                                      0.017
                   Meat⁃based diet             0 .0132(10.5)         88(9.6)0.             44(12.8)
                   Plant⁃based diet            0 .0095(7.5)          60(6.6)0.             35(10.2)
                   Balanced diet               0 1 032(82.0)         767(83.8)0.         265(77.0).0
                 Family history[n(%)]
                   Early menopause             0 .0037(2.9)          22(2.4)0.            15(4.4).0        0.100
                   Menstrual disorders         0 .0187(14.9)         106(11.6)0.          81(23.5).       <0.001
                   Polycystic ovary syndrome   0 .0025(2.0)          20(2.2)0.             5(1.5).         0.546
                   Premature ovarian failure   0 .0012(1.0)           9(1.0).              3(0.9).         1.000
                 Metabolic equivalent/min⁃week(x ± s)  0 1 490(1 498.5)  1 576.7(1 489.3)00  1 259.5(1 500.4)00  <0.001
                 Physical activity level[n(%)]                                                            <0.001
                   Low                         0 .0443(35.2)         282(30.8)0.         161(46.8).0
                   Moderate                    0 .0562(44.6)         435(47.5)0.         127(36.9).0
                   High                        0 .0254(20.2)         198(21.6)0.          56(16.3).
                 Recommended MVPA[n(%)]                                                                   <0.001
                   Yes                         0 .0460(36.5)         360(39.3)0.         100(29.1).0
                   No                          0 .0799(63.5)         555(60.7)0.         244(70.9).0
                 Daily sedentary time(h,x ± s)     6.5 ± 3.1          6.5 ± 3.2            6.6 ± 3.1       0.516
                 PSQI score(x ± s)                 5.6 ± 2.9          5.3 ± 2.8            6.3 ± 3.0      <0.001
                 DASS⁃21score(x ± s)              21.6 ± 21.9        19.2 ± 19.8          28.2 ± 25.5     <0.001
                   MVPA:moderate⁃to⁃vigorous physical activity;PSQI:pittsburgh sleep quality index;DASS⁃21:depression,anxiety and stress scales(21⁃item
                version).

                准与月经周期异常的关联在不同分层人群是否保                             达到活动量目标与月经周期异常的风险无关联
                持一致。亚组分析结果如图2所示,达到WHO的推                          (OR=0.97,95%CI:0.56~1.68),而在 21~24 岁人群
                荐活动量标准对月经周期异常的保护效应可能因                             中,达到活动量目标与月经周期异常的风险降低相
                年龄而异(交互作用 P=0.03)。在 18~20 岁人群中,                   关(OR=0.61,95%CI:0.36~1.01);在25~34岁人群和≥
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