Characteristics | TC (n = 306) | NC (n = 595) | ALL | P* |
---|---|---|---|---|
Demographic characteristics | ||||
 Age (years) | ||||
  Mean ± SD | 28.05 ± 4.24 | 28.03 ± 3.76 | 28.04 ± 3.93 | 0.93 |
 Educational level | ||||
  High/vocational school or lower | 48 (16.0%) | 58 (10.0%) | 106 (12.1%) | 0.01 |
  College or higher | 253 (84.0%) | 518 (90.0%) | 771 (87.9%) |  |
 Marital status | ||||
  Married/divorced/separated | 150 (59.3%) | 345 (65.7%) | 495 (63.6%) | 0.08 |
  Unmarried | 103 (40.7%) | 180 (34.3%) | 283 (36.4%) |  |
 Birth place | ||||
  Shanghai | 189 (74.7%) | 407 (77.5%) | 596 (76.6%) | 0.38 |
  Other regions | 64 (25.3%) | 118 (22.5%) | 182 (23.4%) |  |
 Average monthly income (RMB) | ||||
   < 5000 | 144 (56.9%) | 211 (46.8%) | 427 (55.0%) | 0.01 |
   ≥ 5000 | 109 (43.1%) | 240 (53.2%) | 349 (45.0%) |  |
 Smoking | 35 (22.3%) | 74 (20.1%) | 109 (20.8%) | 0.57 |
 Drinking | 5 (4.5%) | 9 (3.1%) | 14 (3.5%) | 0.52 |
Reproductive history | ||||
 History of abortion (times) | ||||
  0 | 222 (87.7%) | 452 (86.1%) | 674 (86.6%) | 0.53 |
  1-2 | 31 (12.3%) | 73 (13.9%) | 114 (13.4%) |  |
 Pregnancy plan in the next year | 113 (44.8%) | 252 (51.8%) | 365 (49.4%) | 0.08 |
 Gynecological diseases in the previous six months | 85 (28.2%) | 187 (32.4%) | 272 (31.0%) | 0.21 |
 Seeing a doctor because of gynecology diseases | 58 (19.3%) | 119 (20.6%) | 177 (20.2%) | 0.26 |