Table 1 Characterises of participants
|  | Pregnant for 9–12 weeks (N = 179) n (%) | Pregnant for 19–22 weeks (N = 175) n (%) | Pregnant for 28–31 weeks (N = 168) n (%) | 7–10 weeks after delivery (N = 158) n (%) |
|---|---|---|---|---|
Periods of pregnancy and work after delivery | ||||
 Housewife | 75 (41.9) | 75 (42.9) | 84 (50.0) | 85 (53.8) |
 Career women | 104 (58.1) | 100 (57.1) | 84 (50.0) | 73 (46.2) |
Chinese herbals treatment | ||||
 None | 52 (29.1) | 156 (89.1) | 153 (91.1) |  |
 Yes | 127 (70.9) | 19 (10.9) | 15 (8.9) |  |
Number of live foetuses | ||||
 One | 96 (53.6) | 108 (61.7) | 108 (64.3) | 103 (65.2) |
 Two | 55 (30.7) | 67 (38.3) | 60 (35.7) | 55 (34.8) |
 Three | 21 (11.7) |  |  |  |
 Four | 6 (3.4) |  |  |  |
 Five | 1 (0.6) |  |  |  |
Discomfort during pregnancy | ||||
 None | 35 (19.6) | 64 (36.6) | 55 (32.7) |  |
 Yes | 144 (80.4) | 111 (63.4) | 113 (67.3) |  |
Complications | ||||
 None | 169 (94.4) | 159 (90.9) | 147 (87.5) |  |
 Yes | 10 (5.6) | 16 (9.1) | 21 (12.5) |  |
Type of complication | ||||
 Vaginal bleeding | 10 (5.6) | 12 (6.9) | 9 (5.4) |  |
 UC |  | 5 (2.9) | 13 (7.7) |  |
 Placenta previa |  | 2 (1.1) | 2 (1.2) |  |
 UTI |  | 1 (0.6) |  |  |
 GDM |  |  | 6 (3.6) |  |
 PIH |  |  | 1 (0.6) |  |