Table 1 Demographic and smoking behavior characteristics of the sample and interrelationships among measures at baseline
From: Reduction in oxidatively generated DNA damage following smoking cessation
t-statistic and p-value for comparison on demographic variables | ||||||||
|---|---|---|---|---|---|---|---|---|
N (%) | Cigs | CO | d(TgpA) | d(PfpA) | dGh | |||
Gender | Male | 10 (52%) | t | 1.187 | 2.205 | -0.409 | -0.318 | -0.580 |
Female | 9 (48%) | p | 0.251 | 0.041 | 0.688 | 0.755 | 0.569 | |
Race | White | 15 (79%) | t | 1.259 | 0.434 | -0.849 | -0.647 | 1.145 |
Black | 4 (21%) | p | 0.225 | 0.670 | 0.408 | 0.526 | 0.268 | |
Treatment Group | Active | 13 (68%) | t | -0.577 | 0.109 | -0.163 | 0.845 | 1.688 |
Placebo | 6 (32%) | p | 0.571 | 0.914 | 0.873 | 0.410 | 0.110 | |
Mean (SD) | Pearson correlation and p-value between biomarkers and smoking variables | |||||||
Age (years) | 50.2 (10.1) | r | -0.12 | 0.31 | -0.03 | -0.10 | -0.35 | |
p | 0.630 | 0.199 | 0.889 | 0.680 | 0.146 | |||
Years Smoked | 28.8 (9.6) | r | 0.22 | 0.40 | 0.04 | 0.01 | -0.14 | |
p | 0.358 | 0.090 | 0.861 | 0.972 | 0.573 | |||
Cigarettes per Week | 126 (33) | r | 1.00 | 0.56 | -0.09 | -0.18 | 0.04 | |
p | -- | 0.013 | 0.706 | 0.474 | 0.881 | |||
Carbon Monoxide (ppm) | 40.9 (3.7) | r | 0.56 | 1.00 | -0.29 | -0.22 | -0.05 | |
p | 0.013 | -- | 0.225 | 0.357 | 0.848 | |||