Unadjusted OR (95% CI) | Adjusted OR (95% CI)a | |
---|---|---|
Case window 1–14 days before the head injury | ||
Control window 30–45 days before | 1.77 (1.13–2.77) | 1.71 (1.09–2.68) |
Control window 60–74 days before | 1.67 (1.19–2.34) | 1.64 (1.17–2.30) |
Control window 120–134 days before | 2.04 (1.55–2.70) | 2.04 (1.55–2.70) |
Case window 1–14 days before the traumatic brain injury | ||
Control window 30–45 days before | 1.53 (0.83–2.82) | 1.46 (0.79–2.70) |
Control window 60–74 days before | 1.36 (0.85–2.16) | 1.33 (0.83–2.11) |
Control window 120–134 days before | 1.84 (1.24–2.73) | 1.81 (1.22–2.69) |