|
COHb levels in older men: relations to prevalent cardiovascular disease. |
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| Model 1 |
Model 2 |
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|
|
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| current smoking |
COHb |
COHb |
||||||||
|
|
||||||||||
| N |
% |
Geometric mean |
95% |
CI |
p |
Geometric mean |
95% |
CI |
p |
|
|
|
||||||||||
| Recall of doctor diagnosis of |
||||||||||
| Myocardial infarction |
0.5927 |
0.1744 |
||||||||
| Yes |
382 |
15.7 |
0.47 |
0.42 |
0.53 |
0.48 |
0.44 |
0.53 |
||
| No |
3147 |
19.0 |
0.46 |
0.44 |
0.47 |
0.45 |
0.44 |
0.47 |
||
| Angina |
0.1972 |
0.0492 |
||||||||
| Yes |
522 |
15.4 |
0.48 |
0.44 |
0.53 |
0.49 |
0.45 |
0.53 |
||
| No |
3007 |
19.2 |
0.45 |
0.44 |
0.47 |
0.45 |
0.44 |
0.47 |
||
| Stroke |
0.0644 |
0.9806 |
||||||||
| Yes |
199 |
21.3 |
0.52 |
0.45 |
0.61 |
0.46 |
0.40 |
0.52 |
||
| No |
3330 |
18.5 |
0.45 |
0.44 |
0.47 |
0.46 |
0.44 |
0.47 |
||
| Peripheral arterial disease |
0.0030 |
0.2144 |
||||||||
| Yes |
162 |
23.1 |
0.59 |
0.50 |
0.69 |
0.50 |
0.43 |
0.57 |
||
| No |
3367 |
18.4 |
0.45 |
0.44 |
0.47 |
0.45 |
0.44 |
0.47 |
||
|
Model 1: Includes the relevant factor with adjustment for age, time of day, season. Model 2: Includes the relevant factor with adjustment for age, time of day, season, and other factors which were statistically significant in the univariate analyses (region, social class, employment status, housing tenure, active smoking, passive smoking, gas cooking, central heating). An interaction term for active smoking*time of day is also included in the model (see text). p values presented refer to the results of statistical tests of heterogeneity in COHb levels between the explanatory variable categories | ||||||||||
Whincup et al. BMC Public Health 2006 6:189 doi:10.1186/1471-2458-6-189 |
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