Reasons for responding with a problem to the weekly SMS.

*Figures are numbers (percentages). Percentages do not sum to 100 because of non-mutually exclusive response categories.§Includes repeat problems (i.e. includes problems indicated by the same participant on more than one occasion in response to the outgoing weekly “Mambo?” text message).∧Excludes repeat problems (i.e. only includes the first time a participant reported a particular problem; excludes reports of problems by the same participant for the same reason in subsequent weeks).