Case Control Study
Copyright ©The Author(s) 2020.
World J Clin Cases. Jun 6, 2020; 8(11): 2137-2143
Published online Jun 6, 2020. doi: 10.12998/wjcc.v8.i11.2137
Table 2 The incidence of complications in the two groups, n (%)
GroupRespiratory depressionHypertensionHypotensionTachycardiaSum
Observation10012 (5.88)
Control51118 (23.53)
χ2----12.419
P value----< 0.05