Discussion
When Our findings that knowledge is greater for those with more education and for adults rather than youth are consistent with previous findings in both Malawi and other African countries [In contrast to previous research in Malawi and other African countries [Religious involvement was another significant factor that affected HIV knowledge differently for youth and adults. For adults, high religious involvement related to higher HIV knowledge for both indicators. For youth, high religious involvement related to lower HIV knowledge for the UNAIDS Knowledge indicator only. In Malawi and most other African countries, faith-based organizations disseminate a great deal of HIV-related information. However, a recent systematic review found that many faith-based organizations in Africa emphasize abstinence-only messages for youth and discourage condom use, which may affect the types of HIV prevention messages they receive [Although the baseline UNAIDS Knowledge levels for this Phalombe sample were close to the national average, there was a significant increase for both knowledge indicators over time in addition to the time by intervention effects. Given that UNAIDS comprehensive HIV knowledge increased very little in Malawi from 2010 to 2016 [