Fig. 6From: Understanding how, why, for whom, and under what circumstances opt-out blood-borne virus testing programmes work to increase test engagement and uptake within prison: a rapid-realist reviewCosts and benefits related to blood-borne virus testing within a prison context. Salient contextual resources, which influence the realisation of these costs and benefits are depicted surrounding the person’s decision making. Loss aversion suggests that the scales should be initially balanced in favour of testing under opt-outBack to article page