Table 1.

Reassessment of studies from the Waddington review

	Is the intervention substantially more complex than considered by the Waddington review?	Are impacts substantially understated if only diarrhoea outcome is considered?	Are actions by individuals, households or communities substantially influencing the benefits and harms experienced?	Would these other impacts and actions substantially affect the level, distribution or sustainability of the diarrhoea outcome?
Likely	5 (18.5)	6 (22.2)	5 (18.5)	5 (18.5)
More than possible	1 (3.7)	4 (14.8)	8 (29.6)	7 (25.9)
Possible	4 (14.8)	1 (3.7)	3 (11.1)	4 (14.8)
No evidence	17 (63.0)	16 (59.3)	11 (40.7)	11 (40.7)

Note: N = 27. Data are number (%).