Online Table 6:

Net reclassification of 10-year cardiovascular disease risk into low (<7.5%) and high (≥7.5%) risk groups, comparing model A (based on established CVD risk factors) to model B (based on established CVD risk factors plus hypertensive disorders of pregnancy and parity) among women with incident CVD and those without incident CVD at ages 40–49

	Model B: Established CVD Risk Factors Plus Hypertensive Disorders of Pregnancy and Parity
	Categories of Predicted 10-Year Risk
Model A: Established CVD Risk Factors	Low Risk: <7.5%	High Risk: ≥7.5%	Total Reclassified
Categories of Predicted 10-Year Risk
Women with incident CVD (n=359)
Low Risk: <7.5%
N	358	0	---
% Reclassified	---	---	---
High Risk: ≥7.5%
N	0	1	---
% Reclassified	---	---	---
Women without incident CVD (n=73,693)
Low Risk: <7.5%
N	73,679	5	5
% Reclassified	---	0.01	0.01
High Risk: ≥7.5%
N	1	8	1
% Reclassified	11.1	---	11.1

Abbreviation: CVD: cardiovascular disease. Established risk factors include age, total cholesterol, high-density lipoprotein cholesterol, systolic blood pressure, anti-hypertensive medication use, current smoking, and diabetes. NRI = -0.00005; 95% CI: -.0001, 0.000; P = 0.08. NRI for events = inestimable. NRI for non-events = -0.00005; 95% CI: -0.0001, 0.000; P = 0.08.