Table 1.

Studies included in the pooled analysis

Country	Study	Years of study	Country child mortality rate,* per 1,000 live births	Child mortality rate* in control arm per 1,000 person-years	Number of communities	Azithromycin intervention	Control intervention
Ethiopia	TANA	2006–2007	103.5	8.3	48	Annual, biannual or quarterly mass azithromycin	Delayed mass azithromycin distribution
Niger	PRET	2010–2013	116.1	35.3	48	Biannual mass azithromycin to children < 12 years	Annual mass azithromycin to the entire community
Niger	MORDOR	2015–2017	93.2	27.5	594	Biannual mass azithromycin to children aged 1–59 months	Biannual placebo to children aged 1–59 months
Malawi	MORDOR	2015–2017	57.1	9.6	304	Biannual mass azithromycin to children aged 1–59 months	Biannual placebo to children aged 1–59 months
Tanzania	MORDOR	2015–2017	57.8	5.5	614	Biannual mass azithromycin to children aged 1–59 months	Biannual placebo to children aged 1–59 months

MORDOR = Macrolide Oraux pour Réduire les Décès avec un Oeil sur la Résistance; PRET = Partnership for the Rapid Elimination of Trachoma; TANA = Trachoma Amelioration in Northern Amhara.

* Child mortality rates as estimated by United Nations International Children’s Emergency Fund (UNICEF) are expressed in number of deaths per 1,000 live births; mortality rates as estimated by the control arm in each trial are mortality rates per 1,000 person-years. Mortality rates per 1,000 person-years estimate the number of deaths per 1,000 persons per year, whereas mortality rates per 1,000 live births are the probability (per 1,000 live births) of a child dying before his or her fifth birthday (e.g., over a 5-year period).