Table 2.

Summarised sampling process for the qualitative approach

Study Population	Sampling Procedure	Sample Size	Instrument and Data collection Procedure	Data Analysis Plan
1. Community Leaders (16 Chiefs in Mberengwa and 5 chiefs in Umguza)	Purposive	21	Unstructured Interviews, recording of interviews using a tape recorder	Coding and Thematic analysis on MAXQDA version 14
2. Herbalists and traditional attendants	Snowballing	Unknown, therefore sample size would be determined by data saturation.	Unstructured Interviews, recording of interviews using a tape recorder	Coding and Thematic analysis on MAXQDA version 14
3. Parents and guardians	Purposive	5 Focus groups with at 10 participants. The groups would comprise of 5 females and 5 male participants.	Focus Group Discussion Guide, recording the conversations using a tape recorder	Coding and Thematic analysis on MAXQDA version 14
4. Health Service Providers	Purposive	Mberengwa has 32 Health facilities therefore one doctor (if available), one nurse and one environmental Health Practitioner involved in adolescent sexual health issues would be selected at least one in each category per facility, the sample size would depend on data saturation. In Umguza there are 5 health facilities Sample of 5 doctors (if available), 5 nurses and 5 EHPs	Unstructured Interviews, recording of interviews using a tape recorder	Coding and Thematic analysis on MAXQDA version 14