Table 1. Overview of Definition, Chief Rational and Main Themes Emerging From Key Informant Interviews on the Strategies.

Strategy the Theme Relates to	Definition	Chief Rationale	Main Theme Emerging From Interviews With Key Informants
Non-health actors	The active and systematic involvement of actors from outside the health sector in the evaluation of PHIs47	Active and routine involvement of non-health actors promotes intersectoral collaboration by making these more aware of the benefits of PHIs pertaining to their sector and increase their sense of ownership with respect to these interventions47,48	Early involvement of non-health sectors in the evaluative process and inclusion of non-health benefits can promote intersectoral collaboration, but should be combined with greater influence of these sectors in shaping PHIs
Non-health benefits	The explicit and systematic inclusion of relevant non-health benefits in the evaluation6,7	Demonstration of non-health benefits increases the interest in funding and implementing many PHIs among actors outside the health sector13
Harmonized methods	The harmonization of the methods used to evaluate interventions in different sectors22,49	Consistent evaluation of interventions across sectors makes it easier for the many actors to rally around the same interventions22,49	Harmonization of methodological approaches may enable comparison of results and facilitate intersectoral collaboration, but should not be an overriding goal
HIA	Encouraging actors outside the health sector with the task of considering health outcomes when evaluating interventions50	Consideration of health outcomes by non-health actors helps identify areas of common interest with health actors and can spur collaboration47,51	Involvement in HIAs can promote intersectoral collaboration, but needs to be incentivized and be conducted without putting overwhelming demands on non-health sectors
Designated body	The establishment of a designated national body for evaluating PHIs52	A designated body increases the visibility and the attention paid to PHIs both within and outside the health sector and enables better coordination among different actors52,53	A designated body for evaluating PHIs could bolster implementation of available strategies for promoting intersectoral collaboration but to be effective its design needs to take account of realities of policy-making

Abbreviations: HIA, health impact assessment; PHIs, public health interventions.