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Table 3 Spearman’s rank correlation between the efficiency scores and different studies’ characteristics

From: Systematic review and meta-analysis of public hospital efficiency studies in Gulf region and selected countries in similar settings

SSpearman’s rho Technical efficiency Number of hospitals Income categories Orientation of the model
Technical efficiency
 Correlation coefficient 1.000 − 0.519** 0.201 0.279
 Sig. (2-tailed) 0.008 0.336 0.262
 N 25 25 25 25
Number of hospitals
 Correlation coefficient − 0.519** 1.000 − 0.201 − 0.076
 Sig. (2-tailed) 0.008 0.336 0.765
 N 25 25 25 25
Income categories
 Correlation coefficient 0.201 − 0.201 1.000 0.818**
 Sig. (2-tailed) 0.336 0.336 0.000
 N 25 25 25 25
Orientation of the model
 Correlation coefficient 0.279 − 0.076 0.818** 1.000
 Sig. (2-tailed) 0.262 0.765 0.000
 N 25 25 25 25
  1. Income categories of the studied country (high or upper-middle); orientation of the efficiency model (input or output)
  2. **Correlation is significant at 0.01 level (2-tailed)