Category | Total | Vaccinated | Unvaccinated | OR (95% CI) for being vaccinated | P-value |
---|---|---|---|---|---|
N (%) | n (%) | n (%) | |||
 | 2989 (100) | 1938 (65) | 1051 (35) |  |  |
Age | Â | Â | Â | ref | Â |
  Median (range) | 17 (16–17) | 17 (16–17) | 17 (16–17) | 0.9 (0.6–1.2) | 0.45 |
Ethnicity (n=2988) | Â | Â | Â | Â | Â |
  Dutch | 2849 (95) | 1852 (96) | 997 (95) | ref |  |
  Non–Dutch | 139 (5) | 86 (4) | 53 (5) | 0.9 (0.6–1.2) | 0.45 |
Degree of urbanisation (n=2971) | Â | Â | Â | Â | |
  Low (1–1000 inhabitants) | 1514 (51) | 1019 (53) | 495 (47) | ref |  |
  High (>1000 inhabitants) | 1457 (49) | 908 (47) | 549 (53) | 0.8 (0.7–0.9) | 0.004 |
Socio economic status a (n=2962) | Â | Â | Â | Â | |
  Mean (95% CI) | −0.01(−0.03–0.03) | −0.02 (−0.06–0.02) | 0.02 (−0.03–0.07) | 0.9 (0.9–1.0) | 0.20 |
Religion (n=2898) | Â | Â | Â | Â | Â |
  No religion | 1532 (53) | 1050 (56) | 482 (48) | ref |  |
  Catholics | 708 (24) | 511 (27) | 197 (19) | 1.2 (1.0–1.5) |  |
  Protestant Christian | 642 (22) | 317 (17) | 325 (32) | 0.4 (0.4–0.5) |  |
  Other | 16 (1) | 6 (0.3) | 10 (1) | 0.3 (0.1–0.7) | <0.001 |
Education b | Â | Â | Â | Â | Â |
  Low | 221 (7) | 148 (8) | 73 (7) | ref |  |
  Middle | 992 (33) | 631 (33) | 361 (34) | 0.9 (0.6–1.2) |  |
  High | 1776 (59) | 1159 (60) | 617 (59) | 0.9 (0.7–1.2) | 0.54 |
Education of parents b (n=2787) | Â | Â | Â | Â | |
  Low | 49 (2) | 28 (2) | 21(2) | ref |  |
  Middle | 1162 (42) | 749 (41) | 413 (42) | 1.4 (0.8–2.4) |  |
  High | 1576 (57) | 1031 (57) | 545 (56) | 1.4 (0.8–2.5) | 0.45 |
Alcohol use (n=2983) | Â | Â | Â | Â | |
  No | 723 (24) | 425 (22) | 298 (28) | ref |  |
  Yes | 2260 (76) | 1509 (78) | 751 (72) | 1.4 (1.2–1.7) | <0.001 |
Smoking (n=2984) | Â | Â | Â | Â | |
  No | 2280 (76) | 1492 (77) | 788 (75) | ref |  |
  Current smoker | 476 (16) | 299 (15) | 177 (17) | 0.9 (0.7–1.2) |  |
  Former smoker | 228 (8) | 144 (7) | 84 (8) | 0.9 (0.7–1.1) | 0.47 |
Contraception (n=2910) | Â | Â | Â | Â | |
  No | 902 (31) | 533 (28) | 369 (37) | ref |  |
  Yes | 2008 (69) | 1371 (72) | 637 (63) | 1.5 (1.3–1.8) | <0.001 |
Type of contraception (n=2003) | Â | Â | Â | Â | |
  Pill | 1253 (63) | 848 (62) | 405 (64) | ref |  |
  Condom | 160 (8) | 100 (7) | 60 (9) | 0.8 (0.6–1.1) |  |
  Pill and condom | 544 (27) | 385 (28) | 159 (25) | 1.2 (0.9–1.4) |  |
  Other | 46 (2) | 34 (2) | 12 (2) | 1.4 (0.7–2.7) | 0.18 |
Ever had sex (n=2898) | Â | Â | Â | Â | |
  No | 1303 (45) | 826 (44) | 477 (48) | ref |  |
  Yes | 1595 (55) | 1070 (56) | 525 (52) | 1.2 (1.0–1.4) | 0.04 |