Table 1 General characteristics of research participants
From: Risk factors of pelvic floor muscle strength in south Chinese women: a retrospective study
Variables | Group | Number (%) | Mean ± SD (median) |
|---|---|---|---|
Age |  ≤ 29 | 9066 (42.6) | 30.43 ± 4.035 |
30–39 | 11,809 (55.4) |  | |
40–49 | 427 (2.0) |  | |
Height |  |  | 160.37 ± 5.240 |
Weight |  |  | 59.78 ± 8.084 |
BMI(kg/m2) |  < 18.5 | 590 (2.8) | 23.23 ± 2.834 |
18.5–23.9 | 13,002 (61.0) |  | |
24–27.9 | 6508 (30.6) |  | |
 ≥ 28 | 1202 (5.6) |  | |
Parity | 1 | 13,211 (62.0) | Â |
2 | 7348 (34.5) | Â | |
3 | 698 (3.3) | Â | |
 ≥ 4 | 45 (0.2) |  | |
Education |  ≤ 12 | 3834 (18.0) |  |
 > 12 | 17,468 (82.0) |  | |
GWG |  |  | 12.88 ± 4.651 |
NW |  < 4 | 20,086 (94.3) | 3.27 ± 0.516 |
 ≥ 4 | 1216 (5.7) |  | |
NOF | 1 | 20,860 (97.9) | Â |
 ≥ 2 | 442 (2.1) |  | |
DM | CS | 7664 (36.0) | Â |
NIVD | 10,481 (49.2) | Â | |
EP | 2600 (12.2) | Â | |
FD | 557 (2.6) | Â |