Demographic and socio-economic characteristics of study population (n = 211).

Notes: Values in bold indicate a statistically significant difference (paIndigenous groups in La Paz and El Alto were Aymara (n = 20 and = 15, respectively), followed by Quechua (n = 4 and = 2, respectively). One person in La Paz and one person in Santa Cruz identified as Guarani. Primary indigenous groups in Cochabamba were Aymara (n = 5) and Quechua (n = 9). Those not identifying as one of the above indigenous groups indicated “mestizo” as their ethnicity. bHousehold size excludes participant.