Semi-parametric risk prediction models for recurrent cardiovascular events in the LIPID study

Table 3 Same effect model of the recurrent MI events in the LIPID study

Risk factor	Hazard ratio	95% CI	P-value
Age (year)	1.02	1.01 - 1.03	<0.001
Smoking status
Non-smoker	1.0
Current smoker	1.51	1.20 - 1.90	<0.001
Total cholesterol	1.19	1.09 - 1.30	<0.001
HDL cholesterol	0.38	0.26 - 0.54	<0.001
Qualifying event for ACS
Unstable angina	1.0
Single MI	1.29	1.06 - 1.57	0.01
Multiple MI	1.98	1.57 - 2.50	<0.001
Revascularization
Never	1.0
Before ACS	1.59	1.26 - 2.01	<0.001
Since ACS	0.70	0.58 - 0.85	<0.001
History of stroke
No	1.0
Yes	1.47	1.09 - 1.99	0.01
Diabetes mellitus
No	1.0
Yes	1.37	1.08 - 1.72	0.009
Angina grade
CCVS < III	1.0
CCVS ≥ III	1.45	1.15 - 1.82	0.001
Treatment
Placebo	1.0
Pravastatin	0.71	0.61 - 0.83	<0.001

ACS = Acute Coronary Syndrome; CCVS = Canadian Cardiovascular Society Class of angina; HDL = High Density Lipoprotein; MI = Myocardial Infarction.

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