Table 3.

Distribution of subthemes within Theme 1: reasons for involvement. ¹.

Subtheme	Harm Reduction Documents																		Guideline Standards
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	1	2	3	4	5	6
Quality	x	x	x	x	x	x	x				x		x	x	x	x		x		x		x	x	x
Acceptability	x						x	x	x	x	x			x	x	x	x	x		x		x	x
Equity			x	x	x	x	x		x	x	x	x		x		x	x	x		x		x
Human rights	x		x			x	x	x	x		x	x	x		x	x	x	x
Value to participants	x	x	x	x			x	x	x		x		x	x		x	x	x
Scope	x			x	x	x	x	x	x	x	x		x	x	x	x			x	x	x	x	x
Recommendations																			x	x		x	x	x
Credibility	x		x					x			x							x					x
Cost-effectiveness	x										x							x

¹See Supplementary Table 5 for key to numerical references.