Table 1 Demographic characteristics of pregnant women with and without nonobstetric surgery during gestation in Taiwan from 2004 to 2014
Nonobstetric surgery during gestation | |||
|---|---|---|---|
Without | With | ||
Overall, N | 18,974 | 4,747 | |
Variable | N (%) | N (%) | P-valuec |
Maternal age (years) | |||
18–24 | 2724 (14.4) | 681 (14.4) | 1.0000 |
25–29 | 5603 (29.5) | 1401 (29.5) | |
30–34 | 6749 (35.6) | 1689 (35.6) | |
35–39 | 3287 (17.3) | 823 (17.3) | |
≥ 40 | 611 (3.2) | 153 (3.2) | |
Socioeconomic deprivation, missing (N = 364) | 270 (1.5) | 98 (2.1) | 0.0022 |
Comorbidities | |||
Hypertensiona | 428 (2.3) | 182 (3.8) | < 0.0001 |
Diabetes mellitusb | 2349 (12.4) | 665 (14.0) | 0.0026 |
Cardiac disease | 340 (1.8) | 142 (3.0) | < 0.0001 |
Chronic renal disease | 37 (0.2) | 42 (0.9) | < 0.0001 |
Thyroid disease | 507 (2.7) | 214 (4.5) | < 0.0001 |
Obstetric condition | |||
Previous caesarean section | 2731 (14.4) | 728 (15.3) | 0.9980 |
Preeclampsia/Eclampsia | 350 (1.8) | 131 (2.8) | < 0.0001 |
Hospital level, missing (N = 512) | |||
Medical centre | 3281 (17.7) | 1186 (25.7) | < 0.0001 |
Non-medical centre | 15,693 (82.3) | 3561 (74.3) | |
Trimesters | |||
1st | NA | 2163 (45.57) | |
2nd | NA | 2059 (43.37) | |
3rd | NA | 525 (11.06) | |