Winter break Winter break Spring break Spring break Pseudo-break Pseudo-break
school year ILI? before break after break before break after break before break after break
2014/15 ILI absences 262 152 74 33 66 88
Not ILI absences 35618 32140 35806 35847 35814 32204
2015/16 ILI absences 104 62 275 74 101 131
Not ILI absences 37026 37068 36855 37056 37029 33286
2016/17 ILI absences 80 77 115 33 200 108
Not ILI absences 37410 33664 37375 33708 37290 33633
2017/18 ILI absences 155 72 69 39 120 71
Not ILI absences 38125 34380 34383 38241 34332 34381
2018/19 ILI absences 51 47 224 69 43 116
Not ILI absences 38619 38623 38446 38601 27026 38554
OR estimate of a-ILI, after vs. before OR estimate of a-ILI, after vs. before 0.679 0.679 0.327 0.327 0.985 0.985
OR 95% CI OR 95% CI (0.600, 0.769) (0.600, 0.769) (0.283, 0.378) (0.283, 0.378) (0.872, 1.114) (0.872, 1.114)