Table 5:

Net reclassification of 10-year cardiovascular disease risk into low (<5%), intermediate (5% - <10%), and high (≥10%) 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

Model B: Established Risk Factors Plus Hypertensive Disorders of Pregnancy and Parity
Categories of Predicted 10-Year Risk
Model A: Established Risk Factors	Low Risk:	Intermediate Risk:	High Risk:	Total
Categories of Predicted 10-Year Risk	<5%	5%–<10%	>10%	Reclassified
Women with incident CVD (n=685)
Low Risk: <5%
N	669	4	0	4
% Reclassified	---	0.6	---	0.6
Intermediate Risk: 5% - <10%
N	1	11	0	1
% Reclassified	8.3	---	---	8.3
High Risk: >10%
N	0	0	0	---
% Reclassified	---	---	---	---
Women without incident CVD (n=105,545)
Low Risk: <5%
N	105,293	60	0	60
% Reclassified	---	0.06	---	0.06
Intermediate Risk: 5% - <10%
N	27	153	4	31
% Reclassified	14.7	---	2.2	16.9
High Risk: >10%
N	0	2	6	2
% Reclassified	---	25.0	---	25.0

Abbreviations: 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 = 0.004; 95% CI: -0.002, 0.010; P = 0.26. NRI for events = 0.004; 95% CI: -0.002, 0.010; P = 0.21. NRI for non-events = -0.0003; 95% CI: -0.0005, -0.0002; P = 0.0003.