Table 6.

Analysis 3, linear regression analysis exploring the relationship between the total time spent with a systolic BP below 90 mm Hg during the procedure and clinically relevant covariates: total dose of propofol, duration of propofol administration, age, sex, and ASA physical status. In this analysis, 380 patients were included. CI, confidence interval; se, standard error.

	Coefficients	se	95% CI		P-value
			Lower bound	Upper bound
Total dose of propofol (mg kg−1)	0.572	0.213	0.153	0.992	0.008
Duration of propofol administration (min)	0.225	0.025	0.175	0.275	<0.001
Age (yr)	–0.012	0.036	–0.083	0.059	0.743
Male sex	0.307	1.126	–1.907	2.521	0.785
ASA physical status	0.613	0.996	–1.345	2.571	0.538