How experiences become data: the process of eliciting adverse event, medical history and concomitant medication reports in antimalarial and antiretroviral interaction trials

Table 2 Summary of trial participants’ reports elicited by question method

	South Africa			Tanzania
	Medical histories	Adverse events	Treatments	Medical histories	Adverse events	Treatments
Number of reports by general enquiry*	4	23	17	285	6	196
Additional number of reports by checklists (% change from general enquiry)*	8 (100.0)	20 (87.0)	23 (135.3)	245 (86.0)	1 (16.7)	2 (91.3)
Additional number of reports by interview (% change from general enquiry and checklist)**	4 (33.3)	1 (2.3)	4 (10.0)	15 (2.8)	0 (0)	9 (4.5)

*All participants in the sampling frame attending both visits (South Africa n = 16, Tanzania n = 76).
**Subset of participants who took part in in-depth interviews (South Africa n = 11, Tanzania n = 16).

ISSN: 1471-2288