Table 2.
Demographic and socioeconomic characteristics of study population by the mKMI score
| The mKMI score | ||||||
|---|---|---|---|---|---|---|
| None (0–6) | Mild (7–14) | Moderate (15–30) | Severe (> 30) | Statistics | P value | |
| Age, mean ± SD, years | 45.32 ± 4.02 | 46.31 ± 4.24 | 47.77 ± 4.34 | 49.77 ± 4.14 | 219.37 | < 0.0001 |
| < 45 | 731 (47.16) | 798 (36.89) | 748 (24.81) | 76 (12.86) | 531.127 | < 0.0001 |
| 45–50 | 544 (35.10) | 834 (38.56) | 1112 (36.88) | 168 (28.43) | ||
| ≥ 50 | 275 (17.74) | 531 (24.55) | 1155 (38.31) | 347 (58.71) | ||
| BMI, mean ± SD, kg/m2 | 22.72 ± 2.53 | 22.85 ± 2.55 | 23.24 ± 2.90 | 23.54 ± 3.04 | 22.25 | < 0.0001 |
| < 18.5 | 58 (3.74) | 82 (3.79) | 112 (3.71) | 27 (4.57) | 61.9232 | < 0.0001 |
| 18.5–23.9 | 1055 (68.06) | 1412 (65.28) | 1794 (59.50) | 310 (52.45) | ||
| 24–27.9 | 384 (24.77) | 611 (28.25) | 916 (30.38) | 209 (35.36) | ||
| ≥ 28 | 53 (3.42) | 58 (2.68) | 193 (6.40) | 45 (7.61) | ||
| Ethnic, n(%) | 49.0415 | < 0.0001 | ||||
| Han | 1420 (91.61) | 1993 (92.14) | 2685 (89.05) | 474 (80.20) | ||
| Others | 130 (8.39) | 170 (7.86) | 330 (10.95) | 117 (19.80) | ||
| Marital status, n(%) | 7.3482 | 0.0067 | ||||
| Married | 1500 (96.77) | 2105 (97.32) | 2875 (95.36) | 567 (95.94) | ||
| Others | 50 (3.23) | 58 (2.68) | 140 (4.64) | 24 (4.06) | ||
| Occupation, n(%) | 161.747 | < 0.0001 | ||||
| Clerical or professional | 615 (39.68) | 675 (31.21) | 794 (26.33) | 108 (18.27) | ||
| Farmer or manual | 522 (33.68) | 922 (42.63) | 1431 (47.46) | 346 (58.54) | ||
| Others | 413 (26.65) | 566 (26.17) | 790 (26.20) | 137 (23.18) | ||
| Family income, n(%) | 31.5785 | < 0.0001 | ||||
| < 1800 $ | 431 (27.81) | 622 (28.76) | 979 (32.47) | 237 (40.10) | ||
| 1800–3600 $ | 541 (34.90) | 780 (36.06) | 1069 (35.46) | 173 (29.27) | ||
| > 3600 $ | 578 (37.29) | 761 (35.18) | 967 (32.07) | 181 (30.63) | ||
| Education, n(%) | 266.911 | < 0.0001 | ||||
| Illiterate or elementary school | 519 (33.48) | 896 (41.42) | 1550 (51.41) | 375 (63.45) | ||
| Middle school | 334 (21.55) | 501 (23.16) | 627 (20.80) | 105 (17.77) | ||
| High school | 271 (17.48) | 330 (15.26) | 403 (13.37) | 60 (10.15) | ||
| College and above | 426 (27.48) | 436 (20.16) | 435 (14.43) | 51 (8.63) | ||
| Physical activity, n(%) | 11.4011 | 0.0007 | ||||
| Never | 1022 (65.94) | 1450 (67.04) | 2058 (68.26) | 441 (74.62) | ||
| 1–3 times/week | 127 (8.19) | 187 (8.65) | 247 (8.19) | 31 (5.25) | ||
| 4–6 times/week | 134 (8.65) | 181 (8.37) | 284 (9.42) | 41 (6.94) | ||
| ≥ 7 times/week | 267 (17.23) | 345 (15.95) | 426 (14.13) | 78 (13.20) | ||
The mKMI, the Modified Kupperman Menopausal Index
SD, standard deviation; BMI, body mass index