Table 1.
Demographic Characteristics of Perimenopausal and Postmenopausal Women (n=4595)
| Item | All Subjects (n=4595) | Perimenopausal (n=2407) | Postmenopausal (n=2188) | Statistics P value |
|---|---|---|---|---|
| Agea | 50.69±6.49 | 48.77±6.15 | 52.77±6.21 | −21.772, 0.000* |
| Nationalityb | ||||
| Han | 3238(70.49%) | 1701(70.67%) | 1537(70.25%) | |
| Non-Han | 237(5.16%) | 133(5.53%) | 104(4.75%) | 1.139,0.286 |
| Did not answer | 1120(24.37%) | 573(23.81%) | 547(25.00%) | |
| Districtb | ||||
| Beijing | 1603(34.89%) | 868(36.06%) | 735(33.59%) | |
| Non-Beijing | 281(6.12%) | 164(6.81%) | 117(5.35%) | 1.174,0.190 |
| Did not answer | 2711(59.00%) | 1375(57.13%) | 1336(61.06%) | |
| HRTb | ||||
| Yes | 1307(28.44%) | 520(21.60%) | 787(35.97%) | |
| hysterectomized women | 215(16.45%) | 6(1.15%) | 207(26.30%) | |
| No | 2195(47.77%) | 1223(50.81%) | 972(44.42%) | 83.175, 0.000* |
| Did not answer | 1093(23.79%) | 664(27.59%) | 429(19.61%) | |
| Medical menopause | - | - | 719(32.86%) | |
| Natural menopause | - | - | 1063(48.58%) | - |
| Did not answer | - | - | 406(18.56%) | |
| Level of educationc | ||||
| Junior high school/below | 907(19.74%) | 438(18.20%) | 469(21.44%) | |
| Senior high school | 479(10.42%) | 239(9.93%) | 240(10.97%) | −4.334, 0.000* |
| Technical secondary school | 704(15.32%) | 338(14.04%) | 366(16.73%) | |
| Bachelor’s degree/above | 1988(43.26%) | 1111(46.16%) | 877(40.08%) | |
| BMI(Kg/m2)a | 24.19±3.78 | 24.18±4.20 | 24.20±3.32 | −0.843, 0.399 |
| Marital statusb | ||||
| Married | 2468(53.71%) | 1223(50.81%) | 1245(56.90%) | |
| Single | 1247(27.14%) | 705(29.29%) | 542(24.77%) | 16.174, 0.000* |
| Did not answer | 880(19.15%) | 479(19.90%) | 401(18.33%) |
Notes: Data are expressed as mean ± SD or n (%). aStudent’s test of independent samples (t). bPearson Chi-square (χ2). cRank sum test (Z). *P< 0.05 is considered statistically significant.
Abbreviations: HRT, hormone replacement therapy; BMI, body mass index; t, t-statistic; χ2, chi-square; Z, rank-sum test; P, significance value.