Comparative efficacy of hyperbaric bupivacaine vs hyperbaric ropivacaine in spinal anesthesia for cesarean section: A meta-analysis

Table 1 Study characteristics

Ref.	Type	Blinding	Randomisation	Sample size		Hyperbaric drug concentration		Dose (mg)
				R	B	R	B	R	B
Kiran et al[18], 2023	RCT	Double	Unclear	30	30	0.75	0.5	15	10
Kasza et al[19],2006	RCT	Single	Random allocation	36	39	0.75	0.5	15	10
Lunia et al[20], 2023	RCT	Double	Unclear	43	43	0.75	0.5	15	10
Shah et al[21], 2023	RCT	Double	Unclear	40	40	0.75	0.5	15	10
Chung et al[22], 2001	RCT	Double	Random number table	30	30	0.5	0.5	18	12
Subba et al[23], 2019	RCT	Single	Random number table	30	30	0.5	0.5	15	12.5
Modi et al[24], 2017	RCT	Single	Random number table	40	40	0.5	0.5	15	10
Srivastava et al[25], 2012	RCT	Double	Sealed envelop	39	41	0.5	0.5	15	11

B: Bupivacaine; RCT: Randomized control trial; R: Ropivacaine.