Fig. 2From: Effectiveness of different bathing methods on physiological indexes and behavioral status of preterm infants: a systematic review and meta-analysisa Risk of bias in the included trials. Green indicates a low risk of bias, yellow indicates an unclear risk of bias (inability to evaluate based on reported methodology), and red indicates a high risk of bias. b Risk of bias in the included trials. Green indicates a low risk of bias, yellow indicates an unclear risk of bias (inability to evaluate based on reported methodology), and red indicates a high risk of biasBack to article page