OR (95% CI)–Odds ratio (95% Confidence interval). (1) It was not possible to estimate OR-100.0% had success in both groups. Heterogeneity test-Chi (5) = 17.84 ).I2 = 72%. Global test–t(5) = 0.07 (). Heterogeneity chi-squared = 14.06 (d.f. = 4) ,I-squared (variation in OR attributable to heterogeneity) = 71.6%, Estimate of between-study variance Tau-squared = 0.6674, Test of OR = 1: t(4) = 0.48 Prob > |t| = 0.656.