Table 1. Baseline characteristics of the 1991 children in the study sample vs. 161 children who had no data at 6 months.

	Missing at 6 Months	Study Sample	P**
% Active Trachoma	27.3	27.8	0.9
% PCR Infection*	21.7	23.7	0.57
% Unclean Faces	51.3	51.7	0.9
Age (mean)	3.9	4.0	0.54
% Female	48.4	50.9	0.55
% Treated	87.5	95.0	0.0001

*34 children had unusable PCR at baseline.

**chi square tests and a t-test for difference in mean ages.