Table 4 |
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|
Risk factors for death expressed as Hazard Ratio (HR) and 95% Confidence Interval (CI), including the co-variates age, time since recruitment, gender, heart disease, smoking habits and FEV1 percent predicted. |
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|
Variable |
HR |
95% CI |
p-value |
|
|
|||
|
Age1 |
1.09 |
1.07-1.11 |
< 0.001 |
|
Time since recruitment1 |
1.03 |
0.95-1.12 |
0.478 |
|
Gender2 |
1.45 |
1.03-2.03 |
0.034 |
|
Ex-smoker3 |
1.26 |
0.85-1.86 |
0.259 |
|
Smoker3 |
1.91 |
1.21-2.99 |
0.005 |
|
Heart disease4 |
1.36 |
0.96-1.93 |
0.084 |
|
FEV1 percent predicted5 |
0.98 |
0.97-0.99 |
< 0.001 |
|
|
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|
1One unit change represents one year 2Reference group: female gender 3Reference group: non-smoker 4Reference group: not reporting heart-disease 5The unit change represent one percent unit |
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|
Lindberg et al. BMC Pulmonary Medicine 2012 12:1 doi:10.1186/1471-2466-12-1 |
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