1.
Demographic and clinical characteristics of patients aged between 45−60 years old
| Characteristics | n (%) | OR | 95% CI | |
| Postmenopausal (N=465) | Premenopausal (N=677) | |||
| E2, serum concentration of estradiol; FSH, follicle-stimulating hormone; IQR, interquartile ranges; BMI, body mass index; OR, odds ratio; 95% CI, 95% confidence interval. | ||||
Age (
), year
|
54.85±3.39 | 48.50±2.72 | 1.856 | 1.732−1.990 |
| E2 [median (IQR)], pmol/L | 18.57 (18.35−41.39) | 204.30 (52.22−429.60) | 0.976 | 0.972−0.980 |
| FSH [median (IQR)], IU/L | 58.97 (46.17−76.88) | 11.69 (5.94−32.81) | 1.060 | 1.053−1.066 |
Menarche age (
), year
|
15.15±1.97 | 14.90±1.81 | 1.074 | 1.009−1.144 |
| Age group, year | − | − | ||
| 45−49 | 28 (6.02) | 460 (67.95) | ||
| 50−54 | 191 (41.08) | 202 (29.84) | ||
| ≥55 | 246 (52.90) | 15 (2.22) | ||
| BMI, kg/m2 | 1.135 | 0.968−1.331 | ||
| Missing | 0 | 1 | ||
| <18.5 | 6 (1.29) | 12 (1.78) | ||
| 18.5−22.9 | 111 (23.87) | 181 (26.78) | ||
| 23.0−27.5 | 229 (49.25) | 331 (48.96) | ||
| >27.5 | 119 (25.59) | 152 (22.49) | ||
| Feeding, time | 1.143 | 0.870−1.502 | ||
| Never | 3 (0.65) | 4 (0.59) | ||
| 1 | 401 (86.24) | 596 (88.04) | ||
| 2 | 46 (9.89) | 60 (8.86) | ||
| ≥3 | 15 (3.23) | 17 (2.51) | ||
| Pregnancy, time | 0.928 | 0.850−1.014 | ||
| Missing | 12 | 18 | ||
| Never | 13 (2.87) | 8 (1.21) | ||
| 1 | 82 (18.10) | 117 (17.75) | ||
| 2 | 150 (33.11) | 200 (30.35) | ||
| ≥3 | 208 (45.92) | 334 (50.68) | ||
| Parity, time | 1.135 | 0.971−1.326 | ||
| Missing | 11 | 15 | ||
| Never | 19 (4.19) | 15 (2.27) | ||
| 1 | 253 (55.73) | 406 (61.33) | ||
| 2 | 136 (29.96) | 196 (29.61) | ||
| ≥3 | 46 (10.13) | 45 (6.80) | ||
| Abortion, time | 0.829 | 0.736−0.933 | ||
| Missing | 11 | 18 | ||
| Never | 168 (37.00) | 212 (32.17) | ||
| 1 | 149 (32.82) | 181 (27.47) | ||
| 2 | 94 (20.70) | 175 (26.56) | ||
| ≥3 | 43 (9.47) | 91 (13.81) | ||