Table 3.

Factors associated with the presence of an adverse event in an area recently treated with mass oral azithromycin for trachoma, Ethiopia^*

Variable	OR (95% CI)
	12-month survey	24-month survey
Age, per decade	1.33 (1.15–1.53)	1.52 (1.28–1.80)
Female sex	1.22 (0.71–2.10)	1.59 (0.88–2.88)
Persons per household	0.91 (0.80–1.04)	1.11 (0.97–1.27)
Number of previous mass treatments	0.94 (0.55–1.59)	1.03 (0.66–1.61)
Recent azithromycin treatment	2.77 (1.16–6.63)	6.83 (2.63–17.76)

^*Odds ratio (OR) and 95% confidence intervals (CIs) are from multivariate mixed effects logistic regression with the presence of any adverse event as the response variable and household nested in village as random effects.