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. 2020 Oct 16;10(10):e038232. doi: 10.1136/bmjopen-2020-038232

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© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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Initial MLSFH-MAC sample selection, additional enrolments, mortality and sample attrition during 2012 to 2018 Notes: MLSFH-MAC is based in three districts in Malawi: Rumphi in the north, Mchinji in the centre, and Balaka in the South. MLSFH-MAC sampling and related relevant data collection procedures are described in the online supplemental materials. ‘Returning MLSFH-MAC Respondents’ refers to respondents who were interviewed in the current MLSFH-MAC wave, and were eligible but not successfully surveyed in the prior MLSFH-MAC wave (usually because they were temporarily absent). MLSFH-MAC study instruments are summarised in table 3. HIV+, HIV-positive; MLSFH-MAC, Mature Adults Cohort of the Malawi Longitudinal Study of Families and Health; Resp., respondents.