Heparin versus normal saline for the care of peripheral intravenous catheters in pediatrics: a meta-analysis of randomized controlled trials

Table 3 The meta-analysis and subgroup analysis on the incidence of catheter-associated complications

Variable	Number of included RCTs	Heterogeneity(I²)	Model for meta-analysis	Risk ratio	95%CI	P
Total	19	11%	Fixed	0.84	0.70 ~ 0.95	0.002
Neonate	10	5%	Fixed	0.70	0.61 ~ 0.89	0.004
Children	4	19%	Fixed	0.94	0.62 ~ 1.41	0.751
Neonate + children	5	20%	Fixed	0.98	0.71 ~ 1.33	0.904

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