Setting priorities for the health care sector in Zimbabwe using cost-effectiveness analysis and estimates of the burden of disease

Table 4 Influence of selected assumptions and parameters on the level of cost-effectiveness ratios and the rank order of interventions by cost-effectiveness ratios as compared to baseline estimates

Assumption or parameter investigated	Difference in costs per DALY as compared to baseline				Difference in rank order as compared to baseline
	--------- change in percent ---------				------ places up or down ------
	0–10	10–20	20–30	≥ 30	0–1	2–3	4–5	≥ 6
	---- Number of interventions ----				---- Number of interventions ----
Discount rate 6%	55	0	4	6	47	13	3	2
Discount rate 10%	8	3	2	52	25	16	15	9
Zimbabwean life expectancies	20	38	3	4	57	7	1	0
Equal value on each life year	11	34	14	6	45	18	1	1
Capacity utilisation 80%	43	11	10	1	41	21	3	0
Capacity utilisation 95%	19	20	14	12	32	28	4	1
Effectiveness 90% of baseline	2	63	0	0	41	21	3	0
Effectiveness 70% of baseline	0	0	2	63	8	22	19	16
Effectiveness 50% of baseline	0	0	0	65	5	9	10	41

Note: The median costs per DALY utilising an alternative assumption or parameter were compared to the median costs of Table 1. Likewise, the rank order of interventions by median cost-effectiveness ratios utilising an alternative assumption or parameter were compared to the rank order of Table 1.

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