Fig. 3

The choice probabilities of the four alternatives for a change in the time cost of the health center, aid post, or village health volunteer in the mild symptom sub-group (left: 3a, 3b, and 3c) and the choice probabilities of the four alternatives for a change in the time cost of the health center, aid post, or village health volunteer in the severe symptom sub-group (right: 3d, 3e, and 3f). The dashed line indicates each average cost. The unit of cost is in Papua New Guinea Kina (Kina 1 = USD 0.38). VHV: village health volunteer