Outcomes | Before propensity score matching | Unadjusted OR (95% CI) with all other times of day as reference | After propensity score matching | Unadjusted OR (95% CI) with all other times of day as reference | ||

School hours on school days (n=412) | All other times of day (n=1248) | School hours on school days (n=366) | All other times of day (n=366) | |||

Neurologically favourable 1-month survival, % (n) | 18.4 (76) | 10.2 (127) | 2.00 (1.47 to 2.72) | 16.4 (60) | 16.1 (59) | 1.02 (0.69 to 1.51) |