Control group (treatment group 1/generic letter) (%) | N (Treatment group 1) | Intervention groups (treatment group 2–11/specific letter) (%) | N (Treatment group 2–11) | OR (specific vs. generic) | 95% CI | ||
---|---|---|---|---|---|---|---|
Total | 57.7 | 4000 | 55.8 | 21000 | 0.93 | (0.87–0.99) | P = 0.028 |
Sex | |||||||
Men | 52.6 | 1993 | 51.4 | 10449 | 0.95 | (0.86–1.05) | p = 0.302 |
Women | 62.7 | 2007 | 60.2 | 10551 | 0.90 | (0.82–0.99) | p = 0.034 |
Age | |||||||
16–24 years | 42.6 | 566 | 46.6 | 2975 | 1.18 | (0.98–1.41) | p = 0.077 |
25–44 years | 49.3 | 1150 | 47.4 | 6187 | 0.93 | (0.82–1.05) | p = 0.232 |
45–64 years | 64.3 | 1350 | 61.3 | 6856 | 0.88 | (0.78–0.99) | p = 0.037 |
≥65 years | 67.6 | 934 | 64.1 | 4982 | 0.86 | (0.74–1.00) | p = 0.044 |
Men | |||||||
16–24 years | 35.9 | 281 | 40.2 | 1529 | 1.20 | (0.92–1.56) | P = 0.178 |
25–44 years | 41.8 | 588 | 40.7 | 3195 | 0.95 | (0.80–1.14) | P = 0.592 |
45–64 years | 57.9 | 707 | 56.9 | 3454 | 0.96 | (0.82–1.13) | P = 0.639 |
≥65 years | 70.3 | 417 | 65.6 | 2271 | 0.81 | (0.64–1.01) | P = 0.063 |
Women | |||||||
16–24 years | 49.1 | 285 | 53.4 | 1446 | 1.19 | (0.92–1.53) | P = 0.187 |
25–44 years | 57.1 | 562 | 54.6 | 2992 | 0.90 | (0.75–1.08) | P = 0.267 |
45–64 years | 71.4 | 643 | 65.7 | 3402 | 0.77 | (0.64–0.93) | P = 0.005 |
≥65 years | 65.4 | 517 | 62.9 | 2711 | 0.90 | (0.74–1.10) | P = 0.290 |
Marital status | |||||||
Married | 67.9 | 1847 | 63.7 | 9715 | 0.83 | (0.75–0.92) | P = 0.001 |
Divorced | 56.5 | 1448 | 54.5 | 7690 | 0.92 | (0.75–1.13) | P = 0.441 |
Widowed | 54.1 | 439 | 55.2 | 2305 | 1.04 | (0.80–1.36) | p = 0.752 |
Unmarried | 45.7 | 266 | 46.3 | 1290 | 1.03 | (0.92–1.15) | P = 0.665 |
Ethnic background | |||||||
Danish | 61.1 | 3480 | 58.5 | 18442 | 0.90 | (0.83–0.97) | P = 0.005 |
Western | 38.1 | 205 | 41.3 | 991 | 1.14 | (0.84–1.56) | P = 0.393 |
Non-western | 33.0 | 315 | 33.2 | 1597 | 1.01 | (0.78–1.30) | P = 0.954 |