Table 4. Case control study: Ivermectin history according to epilepsy status, in health area, age and gender matched case and control study univariate analysis, with a random effect for pair identity.

Factor	Odds Ratio	95% C.I.	P Value
Ivermectin received the year before epilepsy appeared (equivalent year in the controls)	0.52	0.28, 0.98	0.04
Proportion of occasions, in years eligible, Ivermectin received before epilepsy appearance (or equivalent period in controls)	0.46	0.22, 0.95	0.04
Proportion of occasions, in years eligible, Ivermectin received after epilepsy appearance (or equivalent period in controls)	0.89	0.46, 1.70	0.71