Table 5.

Quality assessment using the CHEC check list.

No.	CHEC List	Number of Studies Satisfying	Percentage
1	Is the study population clearly described?	11	100
2	Are competing alternatives clearly described?	11	100
3	Is a well-defined research question posed in answerable form?	11	100
4	Is the economic study design appropriate to the stated objective?	11	100
5	Is the chosen time horizon appropriate in order to include relevant costs and consequences?	11	100
6	Is the actual perspective chosen appropriate?	11	100
7	Are all important and relevant costs for each alternative identified?	11	100
8	Are all costs measured appropriately in physical units?	11	100
9	Are costs valued appropriately?	11	100
10	Are all important and relevant outcomes for each alternative identified?	9	81.82
11	Are all outcomes measured appropriately?	11	100
12	Are outcomes valued appropriately?	11	100
13	Is an incremental analysis of costs and outcomes of alternatives performed?	11	100
14	Are all future costs and outcomes discounted appropriately?	10	90.91
15	Are all important variables, whose values are uncertain, appropriately subjected to sensitivity analysis?	9	81.82
16	Do the conclusions follow from the data reported?	11	100
17	Does the study discuss the generalizability of the results to other settings and patient/client groups?	11	100
18	Does the article indicate that there is no potential conflict of interest of study researcher(s) and funder(s)?	10	90.91
19	Are ethical and distributional issues discussed appropriately?	8	72.71