Diary data collected from a subset of participants enrolled on the MENISCUS trial. Diary booklets were distributed to participants selected for the diary sub-study approximately 12 weeks prior to the endline quantitative survey. Participants were asked to complete them daily by shading boxes to answer six closed-ended questions on their school and class attendance and menstrual flow. In total, diary booklets were distributed to 1477 female participants, of whom, 1332 participants returned completed booklets.