Table 1. Sociodemographic characteristics of the study population.

Variable	Category	Total N = 439 (100%)
Sex	Male	205 (46.7%)
	Female	234 (53.3%)
Study site	Matero	96 (21.9%)
	George	233 (53.1%)
	Chainda	110 (25.1%)
Identity	Ngoni	40 (9.1%)
	Bemba	121 (27.6%)
	Chewa	77 (17.5%)
	Lozi	9 (2.1)
	Tonga	40 (9.1%)
	Other	152 (34.6%)
Electrical supply	Own connection	135 (30.8%)
	Shared connection	235 (53.5%)
	No connection	69 (15.7%)
Distance to closest study site (km)	<1	169 (38.5%)
	≥1 and <3	176 (40.1%)
	≥3	94 (21.4%)