Table 1.

Study site, participant, and survey details

Country	Study location	Number of study health facilities collecting ANC1 data	Age of women enrolled (years)	Study collecting cross-sectional household survey data	Methodology for identification of target health facility (HF) catchments	Sample size for cross-sectional household survey
Benin	Atlantique Department	40	15–49	Group Antenatal Care study	HFs with 30–120 first ANC visits per month that were easily accessible throughout majority of the year were selected, catchment areas were identified with the assistance of the HF staff	2,520 (of which 1,320 were selected from women with a completed pregnancy in the past year), twice
Burkina Faso	Banfora District	7	20–49	New Nets Project	HFs with > 20 first ANC visits per month on average in DHIS2 from 2017	190, annually
	Gaoua District	7				190, annually
	Orodara District	7				190, annually
Mozambique	Changara District	7	18–49	New Nets Project	HFs with > 20 first ANC visits per month on average in DHIS2 from 2017 – 2019	420, annually
	Guro District	7				420, annually
	Chemba District	7				420, annually
Nigeria	Asa local government area	10	18–49	New Nets Project	By LGA, ten HFs with the most first ANC visits per month reported in DHIS2 in 2019	420, annually
	Ejigbo local government area	10				420, annually
	Ife North local government area	10				420, annually
	Moro local government area	10	14–49			420, annually
Tanzania	Geita Region	40	15–49	Group Antenatal Care study	HFs with 30–120 first ANC visits per month that were easily accessible throughout majority of the year were selected, catchment areas were identified with the assistance of the HF staff	2,320 (1,120 were selected from women with a completed pregnancy in the past year), twice
Zambia	Chadiza District	21	15–49	Proactive community case management	All HFs in the district were included and catchment area boundaries were defined by the Ministry of Health	2178, twice