Table 2.

Presence of trachoma infection in children according to status as belonging to a migrant family or present during the previous MDA, Kongwa, Tanzania

Year	Migrant or resident for previous year	Children, n	Infected, %	Odds ratio (95% CI)	Trachoma (TF), %	Odds ratio (95% CI)
1	Resident	2,275	12.7	1.00	15.7	1.00
	Migrant	92	19.6	1.76 (0.93–3.34)	18.5	1.23 (0.66–2.28)
2	Resident	2,444	7.0	1.00	11.5	1.00
	Migrant	153	11.8	1.56 (0.81–2.99)	12.4	1.09 (0.60–2.99)
3	Resident	2,640	5.8	1.00	8.6	1.00
	Migrant	71	15.5	2.49 (1.03–6.05)	15.5	2.07 (1.09–3.97)

CI, confidence interval; MDA, mass drug administration, TF, follicular trachoma