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Table 3 Heterogeneity of studies

From: Determinants of catastrophic health expenditures in Iran: a systematic review and meta-analysis

Model Effect size and 95% interval Test of null (2-tail) Heterogeneity Tau-squared
Point estimate Lower limit Upper limit Z-value P-value Q-value df (Q) P-value I-squared Tau squared Standard error Variance Tau
Fixed 0.041 0.057 0.040 − 1333.61 0.000 25,612.613 51 0.000 99.801 0.211 0.181 0.033 0.460
Random 0.047 0.042 0.053 − 45.900 0.000