Table 5.
(A). Factors affecting exhaled CO half-life in smokers. (B). Factors affecting exhaled CO half-life for smokers.
| (A) | ||||
| Variable 1 (n = 45) | R2 = 0.163, Adjusted R2 = 0.143 | |||
| β 2 | Beta 3 | 95% CI 4 | p-Value | |
| Height (cm) | 4.878 | 0.403 | (1.431, 8.326) | 0.007 |
| (B) | ||||
| Variable (n = 45) | R2 = 0.141, adjusted R2 = 0.078 | |||
| β 1 | Beta 2 | 95% CI 3 | p-Value | |
| Height (cm) | 2.483 | 0.209 | (−3.141, 8.109) | 0.378 |
| Gender (female/male) | −26.893 | −0.114 | (−125.814, 72.028) | 0.586 |
| Weight | 0.718 | 0.106 | (−1.837, 3.273) | 0.573 |
(A) 1 Variables included when running backwards stepwise regression: age, gender, height, weight, BMI, exposure CO, exercise, type of cigarette, cigarettes smoked weekly, years of smoking, time since the last cigarette, number of puffs and smoking duration, 2 β—un-standardised coefficient, 3 Beta—standardised coefficient, 4 95% CI—95% Confidence Interval. (B) 1 β—un-standardised coefficient, 2 Beta—standardised coefficient, 3 95% CI—95% Confidence Interval.