Table 3

The risk factors identified in the INTERHEART study, their definitions and odds ratios.
Risk factor	Definition	OR

Smoking status[25]	Current versus non-smoker	2.87
ApoB/ApoA1 ratio (personal communication)
2nd versus 1^stquintile	<0.57	1.42
3rd versus 1^stquintile	0.57–0.69	1.84
4th versus 1^stquintile	0.69–0.82	2.41
5th versus 1^stquintile	0.98	3.25
History of hypertension[25]	Self reported	1.91
Diabetes mellitus[25]	Self reported	2.37
Abdominal obesity[29]	Waist to hip ratio
2nd versus 1^stquintile	Women: 0.79–0.84, men: 0.87–0.91	1.03
3rd versus 1^stquintile	Women: 0.84–0.89, men: 0.91–0.94	1.083
4th versus 1^stquintile	Women: 0.89–0.94, men: 0.94–0.98	1.379
5th versus 1^stquintile	Women: 0.94->, men: 0.98->	1.666
Psychosocial factors[25]	An unreported algorithm	2.67
Family history of premature CVD	A first degree relative <55 for men and <60 for women	1.45
Consumption of fruit and vegetables[25]	Daily consumption versus not	0.70
Regular alcohol consumption[25]	At least three days a week	0.91
Regular physical activity[25]	At least four hours a week	0.86

Martin et al. BMC Medical Informatics and Decision Making 2008 8:49 doi:10.1186/1472-6947-8-49