Usefulness of estimated pulse wave velocity for identifying prevalent coronary heart disease: findings from a general Chinese population

Table 3 ROC and reclassification analysis for ePWV to improve the identification of prevalent CHD

Model	AUC (95% CI)	P value	NRI (category free)	P value	IDI	P value
ePWV	0.665 (0.654, 0.677)	< 0.001
Clinical risk factors^a	0.705 (0.694, 0.716)	–	–	–	–	–
Clinical risk factors + ePWV	0.718 (0.707, 0.729)	0.044	0.436 (0.301, 0.571)	< 0.001	0.004 (0.001, 0.006)	0.002

^aClinical risk factors: sex, age, current smoking and drinking status, BMI, WC, FPG, TC, LDL-C, eGFR, and cerebrovascular disease history
ROC: Receiver operating characteristic curve; CHD: coronary heart disease; AUC: area under the curve; CI: confidence interval; NRI: net reclassification improvement; IDI: integrated discrimination index; BMI: body mass index; WC: waist circumference; FPG: fasting plasma glucose; TC: total cholesterol; LDL-C: low-density lipoprotein cholesterol; eGFR: estimated glomerular filtration rate

ISSN: 1471-2261