Table 2.

Quality assessment of studies included in the meta-regression analysis

No.	Adjustment for quality of care?	Adjustment for teaching activities?	Assess the determinants of efficiency?	Sensitivity analysis?	Ratio of size to dimension ≥3?	Homogeneity in type of hospital (general/specialty)?	Homogeneity in activity (teaching/non-teaching)?	Homogeneity in hospital ownership status?	Homogeneity in location (same/multiple province)?
1	No	No	No	No	Yes (in 5 out of 6 estimates)	Yes (in 5 out of 6 estimates)	Yes (in 5 out of 6 estimates)	Yes	No
2	No	No	No	No	Yes	Yes	No	Yes	Yes
3	No	No	Yes	No	No	Yes	No	Yes	Yes
4	No	No	No	No	No	Yes	No	Yes	Yes
5	No	No	No	No	No	No	No	Yes	Yes
6	Yes	Yes	No	No	No	No	No	Yes	Yes
7	No	No	Yes	No	No	No	No	Yes	Yes
8	No	No	No	No	No	No	Yes	Yes	Yes
9	No	No	Yes	No	Yes	No	No	Yes	Yes
10	No	No	Yes	No	No	No	No	Yes	Yes
11	No	–	No	No	Yes	No	Yes	Yes	No
12	No	–	No	No	Yes	No	Yes	Yes	No
13	No	No	No	No	No	Yes	No	Yes	Yes
14	No	–	No	No	Yes	No	Yes	Yes	No
15	No	No	No	No	Yes	Yes	No	Yes	Yes
16	No	No	No	Yes	No	No	No	No	Yes
17	No	No	No	No	Yes	No	No	Yes	Yes
18	No	No	Yes	No	No	No	No	Yes	Yes
19	No	No	No	No	Yes	No	No	Yes	Yes
20	No	No	No	No	No	Yes	No	Yes	Yes
21	No	No	Yes	No	No	Yes	No	Yes	Yes
22	No	No	No	Yes	No	Yes	No	Yes	Yes
23	No	No	No	No	No	No	No	No	Yes
24	No	No	No	No	No	No	Yes	No	Yes
25	No	No	No	No	No	No	No	No	Yes
26	No	No	No	Yes	No	Yes	No	Yes	Yes
27	No	No	No	No	Yes	Yes	No	Yes	No
28	No	No	Yes	Yes	No	No	No	No	No
29	No	No	No	No	Yes	No	No	No	Yes