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Table 2 Quality assessment of studies included in the meta-regression analysis

From: Frontier-based techniques in measuring hospital efficiency in Iran: a systematic review and 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
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