Table 1.

Baseline characteristics of children ≤ 30 months at time of enrollment in 24 communities randomized to annual or biannual mass azithromycin in a cluster-randomized trial in Niger

Characteristic	Mean (95% confidence interval or range)
	Annual azithromycin N = 12 communities	Biannual azithromycin N = 12 communities
Children per community	72 (range, 37–119)	66 (range, 36–124)
Proportion female (%)	52.1% (49.3–54.8)	49.0% (45.1–52.9)
Age (months)	18.4 (17.3–19.4)	18.7 (17.4–19.9)
Prevalence of TF*	23.4% (14.9–32.0)	17.6% (12.5–22.7)
Prevalence of TI*	7.1% (1.0–13.3)	5.0% (1.9–8.2)

^*Trachomatous inflammation—follicular (TF) and trachomatous inflammation—intense (TI) assessed according to the World Health Organization Simplified Grading System.