Table 3.

Results from blood assessments among children 6–60 months of age in 24 communities in Niger randomized to annual or biannual mass azithromycin over 3 years^*

Measurement	Mean or % (95% confidence interval)		P value*
	Annual azithromycin N = 12 communities	Biannual azithromycin N = 12 communities
Malaria parasitemia	54.5% (43.0–66.1%)	54.5% (44.8–64.2%)	0.995
Parasite density, parasites/μL2	7,710 (4,670–10,800)	4,930 (3,320–6,550)	0.11
Hemoglobin, g/dL	9.4 (9.1–9.6)	9.4 (9.1–9.7)	0.87
Gametocytemia	0.5% (0–1.3%)	0.7% (0–1.3%)	0.63

Blood assessments were conducted 36 months after enrollment.

^*Paired t test.

^†Parasite density measures rounded to the nearest ten.