Crystalloid Coload Reduced the Incidence of Hypotension in Spinal Anesthesia for Cesarean Delivery, When Compared to Crystalloid Preload: A Meta-Analysis

Table 2

Risk of bias.

Studies	Random sequence generation; (selection bias)	Allocation concealment; (selection bias)	Blinding of participants and personnel (performance bias)	Blinding of outcome assessment; (detection bias)	Incomplete outcome data; (attrition bias)	Selective reporting; (reporting bias)
Dyer et al. 2004 [11]	Unclear	Low	Low	Low	Low	Unclear
Farid et al. 2016 [14]	Unclear	Unclear	Low	Low	Low	Low
Jain and Valecha 2017 [15]	Low	Low	Low	Low	Low	Low
Khan et al. 2013 [16]	Unclear	Unclear	Low	Low	Low	Unclear
Oh et al. 2014 [17]	Unclear	Low	High	Low	Low	Low
Rao and Vijaya 2015 [12]	Unclear	Unclear	Low	Low	Low	Unclear
Sarkar et al. 2014 [18]	Unclear	Unclear	Low	Low	Low	Unclear
Shah et al. 2015 [19]	Low	Unclear	Low	Low	Low	Unclear
Sharma et al. 2016 [20]	Unclear	Low	Low	Low	Low	Low
Williams et al. 2012 [21]	Unclear	Low	Low	Low	Low	Unclear