Characteristic | Group; no. (%) of women* | Standardized difference† | ||
---|---|---|---|---|
Overall n = 1 245 457 | Exposure n = 119 948 | Matched n = 1 125 509 | ||
Age, yr, median (IQR) | 42 (29–52) | 42 (30–52) | 42 (29–52) | 0.02 |
Income quintile | ||||
1 (lowest) | 298 115 (23.9) | 29 896 (24.9) | 268 219 (23.8) | 0.03 |
2 | 265 181 (21.3) | 25 548 (21.3) | 239 633 (21.3) | < 0.001 |
3 | 236 935 (19.0) | 22 443 (18.7) | 214 492 (19.1) | 0.01 |
4 | 224 190 (18.0) | 21 186 (17.7) | 203 004 (18.0) | 0.01 |
5 (highest) | 219 010 (17.6) | 20 601 (17.2) | 198 409 (17.6) | 0.01 |
Missing | 2026 (0.2) | 274 (0.2) | 1752 (0.2) | 0.02 |
Residence | ||||
Urban | 1 131 150 (90.9) | 108 389 (90.3) | 1 022 761 (90.9) | 0.01 |
Rural | 113 879 (9.1) | 11 496 (9.6) | 102 383 (9.1) | 0.02 |
Missing | 428 (0.03) | 63 (0.1) | 365 (0.03) | 0.01 |
Charlson Comorbidity Index score | ||||
0 | 178 386 (14.3) | 24 961 (20.8) | 153 425 (13.6) | 0.19 |
1 | 18 447 (1.5) | 3451 (2.9) | 14 996 (1.3) | 0.11 |
2 | 10 749 (0.9) | 1299 (1.1) | 9450 (0.8) | 0.02 |
≥ 3 | 8226 (0.7) | 1002 (0.8) | 7224 (0.6) | 0.02 |
Missing | 1 029 649 (82.7) | 89 235 (74.4) | 940 414 (83.6) | 0.23 |
Adjusted Diagnostic Group score | ||||
0 | 32 505 (2.6) | 3011 (2.5) | 29 494 (2.6) | 0.01 |
1–3 | 137 524 (11.0) | 12 762 (10.6) | 124 762 (11.1) | 0.01 |
4–6 | 318 091 (25.5) | 29 369 (24.5) | 288 722 (25.7) | 0.03 |
7–9 | 371 691 (29.8) | 34 265 (28.6) | 337 426 (30.0) | 0.03 |
≥ 10 | 385 646 (31.0) | 40 541 (33.8) | 345 105 (30.7) | 0.07 |
Comorbidities | ||||
Vascular diseases | 15 082 (1.2) | 1898 (1.6) | 13 184 (1.2) | 153.04 |
Hypertension | 44 240 (3.6) | 3720 (3.1) | 40 520 (3.6) | 78.72 |
Diabetes | 18 251 (1.5) | 2173 (1.8) | 16 078 (1.4) | 110.18 |
Dyslipidemia | 4504 (0.4) | 618 (0.5) | 3886 (0.4) | 86.90 |
Respiratory diseases | 8390 (0.7) | 1740 (1.4) | 6650 (0.6) | 1197.55 |
Arthritis | 2547 (0.2) | 302 (0.2) | 2245 (0.2) | 14.53 |
Crohn disease/ulcerative colitis | 2135 (0.2) | 198 (0.3) | 1937 (0.2) | 0.31 |
Osteoporosis | 724 (0.1) | 138 (0.1) | 586 (0.05) | 74.02 |
Obesity | 4646 (0.4) | 942 (0.8) | 3704 (0.3) | 607.13 |
Pelvic inflammatory diseases | 870 (0.1) | 115 (0.1) | 755 (0.1) | 12.87 |
Polycystic ovary syndrome | 126 (0.01) | 27 (0.02) | 99 (0.01) | 20.15 |
Attached to family physician | ||||
Yes | 1 186 316 (95.3) | 113 722 (94.8) | 1 072 594 (95.3) | 0.01 |
No | 59 141 (4.7) | 6226 (5.2) | 52 915 (4.7) | 0.01 |