Table 3.

Linear model with time SAP < 80% pre-induction baseline as a hypothesised predictor

Model
Time SAP < 80% pre-ind + age at surgery + gender + pre-op Charlson Comorbidity Index
Coefficient	β	SE	95% CI	P value
Intercept	− 21.754	17.266
Time MAP < 55 mmHg	0.057	0.034	− 0.011–0.126	0.102
Age at surgery	0.582	0.200	0.181–0.984	0.005
Pre-op Charlson CI	− 1.122	1.002	− 3.140–0.895	0.269
Gender (Female)	−2.518	6.249	−15.103 – 10.069	0.689

*P value obtained from Wald’s test statistic