Table 2 Maternal and gestational history in relation to group (symptom-free (SF), nausea only (NP), and nausea and vomiting (NVP))
SF | NP | NVP | |||
|---|---|---|---|---|---|
n | (n = 14 234) | (n = 20 371) | (n = 17 070) | ||
51 675 | n (%) | n (%) | n (%) | P valuea | |
High blood pressure pre-pregnancy | 44 580 | ||||
No | 43 089 | 11 938 (96.9) | 17 144 (96.7) | 14 007 (96.4) | |
Yes | 1491 | 380 (3.1) | 581 (3.3) | 530 (3.6) | 0.03 |
Diabetes pre-pregnancy: | 51 675 | ||||
No | 51 424 | 14 138 (99.3) | 20 292 (99.6) | 16 994 (99.6) | |
Yes | 251 | 96 (0.7) | 79 (0.4) | 76 (0.4) | 0.001 |
Para ≥1 women | |||||
Previous stillbirths or spontaneous miscarriages | 24 156 | ||||
No | 17 246 | 3829 (72.5) | 7697 (70.7) | 5720 (71.6) | |
Yes | 6910 | 1449 (27.5) | 3191 (29.3) | 2270 (28.4) | 0.045 |
Previous experience of pelvic girdle pain (PGP) | 21 114 | ||||
No | 15 128 | 3782 (79.4) | 6948 (71.4) | 4398 (66.5) | |
Yes | 5986 | 983 (20.6) | 2788 (28.6) | 2215 (33.5) | <0.001 |
Previous preeclampsia | 19 184 | ||||
No | 17 437 | 4133 (91.9) | 8078 (91.7) | 5226 (88.9) | |
Yes | 1747 | 362 (8.1) | 735 (8.3) | 650 (11.1) | <0.001 |