Table 2.

Key features of fieldworkers participating in STUDY A and B.

Features	STUDY A	STUDY B
Education level	Minimum of secondary school level qualifications	Ranging from secondary school level qualifications to advanced university degree (Masters)
Employment history	Included experience in public sector positions e.g. nursing and teaching. Former employees of NGOs	As in SITE A. Some fieldworkers engaged in farming or day labour
Age	18–35 years	18–41 years
Languages spoken	All fieldworkers spoke the national language, at least one local language and English	All fieldworkers spoke the national language KiSwahili. Highly educated and many experienced fieldworkers spoke English