Table 1 Characteristics of the study population
From: Statin use and risk for ovarian cancer: a Danish nationwide case–control study
Characteristic | Cases ( n =4103) | Controls ( n =58 706) |
|---|---|---|
Drug use | ||
Statins | 434 (10.6) | 6445 (11.0) |
Oral contraceptives | 224 (5.5) | 5070 (8.6) |
Hormonal replacement therapy | 1484 (36.2) | 18 850 (32.1) |
Paracetamol | 587 (14.3) | 9513 (16.2) |
Low-dose aspirin | 494 (12.0) | 7536 (12.8) |
Age at diagnosis/index date (years) | ||
30–39 | 104 (2.5) | 1454 (2.5) |
40–49 | 480 (11.7) | 6879 (11.7) |
50–59 | 1041 (25.4) | 14 991 (25.5) |
60–69 | 1233 (30.1) | 17 632 (30.0) |
70–84 | 1245 (30.3) | 17 750 (30.2) |
Education | ||
Basic | 82 (2.0) | 1522 (2.6) |
Higher | 853 (20.8) | 11 576 (19.7) |
Vocational | 3026 (73.8) | 43 606 (74.3) |
Unknown | 142 (3.5) | 2002 (3.4) |
Personal income | ||
Low | 1427 (34.8) | 19 854 (33.8) |
Medium | 1372 (33.4) | 19 507 (33.2) |
High | 1304 (31.8) | 19 345 (33.0) |
Parity | ||
0 | 901 (22.0) | 9528 (16.2) |
1 | 797 (19.4) | 10 641 (18.1) |
2 | 1521 (37.1) | 23 218 (39.5) |
⩾3 | 884 (21.5) | 15 319 (26.1) |
Medical history | ||
Infertility | 163 (4.0) | 1443 (2.5) |
Endometriosis | 71 (1.7) | 857 (1.5) |
Diabetes mellitus | 189 (4.6) | 2792 (4.8) |
Chronic obstructive pulmonary disease or asthma | 167 (4.1) | 2882 (4.9) |
Ischaemic cardio- or cerebrovascular disease | 321 (7.8) | 5666 (9.7) |
Previous surgical procedure | ||
Hysterectomy | 369 (9.0) | 4772 (8.1) |
Tubal sterilisation | 200 (4.9) | 3453 (5.9) |
