Background: Private healthcare providers deliver a significant proportion of healthcare services in low- and middle-income countries (LMIC). Poorer patients get sick and go without care more frequently, and spend more of their incomes on private healthcare than the wealthy. This review is focused on comparing health outcomes in private versus public care settings. It seeks to summarize what is known regarding the relative morbidity or mortality outcomes that result from treatment by public or private providers in LMIC.Methods: We conducted a systematic review of studies evaluating the impact of public and private healthcare provision. We performed meta-analyses on data within identified studies, in order to estimate the effects of type of healthcare provision on identified health outcomes.Results: Twenty-one studies met our inclusion criteria and explicitly compared health outcomes between the public and private sectors. Of those, 17 were cohortstudies, from 9 countries. Eleven studies were conducted in lower-middle-incomecountries (