Table 5.

Receiver operating characteristics analysis for pre-operative homocysteine level as predictor for thrombo-embolic complications and mortality: derivation series and bootstrap series

Development series					Bootstrap series
Outcome	AUC (95% CI)	Cut-off value (µmol/L)	Sensitivity, %	Specificity, %	AUC (95% CI)	Cut-off value (95% CI)	Sensitivity (95% CI), %	Specificity (95% CI), %
In-hospital mortality	0.68 (0.56–0.80)	14.8	72	61	0.67 (0.55–0.78)	14.8 (14.5–15.1)	69 (61–80)	61 (55–67)
Thrombo-embolic events	0.71 (0.56–0.84)	14.3	75	56	0.70 (0.57–0.84)	15.4 (14.9–16.0)	70 (61–83)	64 (55–82)

AUC, area under the curve; CI, confidence interval.