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Table 1 Descriptive statistics and hazard ratios of CHD in the Reykjavik prospective cohort study

From: Derivation and assessment of risk prediction models using case-cohort data

  

Hazard ratio (95% CI) for CHD per 1 standard deviation higher value or in comparison with reference category*

 

Mean (SD) or n (%)

Model 1

Model 2

Age at survey (years)

52.3 (7.6)

1.68 (1.60, 1.77)

1.65 (1.57, 1.74)

Smoking status (smoker vs non-smoker)*

3,609 (53.3)

1.54 (1.40, 1.70)

1.51 (1.37, 1.66)

Systolic blood pressure (mmHg)

141.8 (20.6)

1.22 (1.17, 1.28)

1.22 (1.17, 1.28)

Total cholesterol (mmol/l)

6.3 (1.0)

1.31 (1.26, 1.37)

1.27 (1.22, 1.33)

HDL-cholesterol (mmol/l)

1.4 (0.2)

 

0.80 (0.76, 0.85)

  1. Hazard ratios are based on a Cox proportional hazards model involving 6773 men (1827 events) with information on all risk factors, and using time from study entry as the time scale.
  2. *reference category for smoking is non-smokers.
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BMC Medical Research Methodology

ISSN: 1471-2288

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