Online Table 7:

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.50–59

	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=326)
Low Risk: <7.5%
N	322	1	1
% Reclassified	---	0.3	0.3
High Risk: ≥7.5%
N	1	2	1
% Reclassified	33.3	---	33.3
Women without incident CVD (n=31,852)
Low Risk: <7.5%
N	31,807	9	9
% Reclassified	---	0.03	0.03
High Risk: ≥7.5%
N	4	32	4
% 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 = -0.00002; 95% CI: -0.007, 0.007; P = 0.99. NRI for events = 0.0001; 95% CI: -0.007, 0.008; P = 0.97. NRI for non-events = -0.0002; 95% CI: -0.0004, 0.0001; P = 0.17.