Table 3. Multivariate association between AZ MDA and Plasmodium falciparum prevalence with village-level random effects, Tanzania, January 12–July 21, 2009*.

Time	AZT MDA treatment, yes/no	Bednets, yes/no	Altitude, m
Baseline	1.16 (0.725–1.849)	0.75 (0.483–1.158)	0.99 (0.984–0.996)
Month 1	0.37 (0.188–0.743)†	0.78 (0.418–1.439)	1.01 (1.002–1.017)
Month 3	0.70 (0.922–1.64)	1.55 (0.662–3.65)	1.00 (0.992–1.012)
Month 4	0.62 (0.078–4.919)	0.40 (0.095–1.673)	1.02 (0.997–1.044)
Month 6	0.50 (0.074–3.347)	1.54 (0.235–10.094)	0.99 (0.966–1.016)

*Values are odds ratio (95% CI). AZT, azithromycin; MDA, mass drug administration.
†p<0.005.