Comparison of cases with controls by other smoking variables*
| Odds ratios (95% confidence interval) | |||
|---|---|---|---|
| All cases (n = 431)v controls (n = 279) | All cases with CNV (n = 326)v controls (n = 279) | All cases with GA (n = 172) v controls (n = 279) | |
| *The logistic regression model included age, sex, pack years of cigarette smoking, pack years of smoking other tobacco products, and inhalation status. | |||
| †Denotes reference category. | |||
| Pack years of cigarette smoking | |||
| 0† | 1.00 | 1.00 | 1.00 |
| 0.1–20 | 0.84 (0.50 to 1.42) | 0.81 (0.47 to 1.40) | 0.79 (0.41 to 1.54) |
| 20.1–40 | 1.62 (0.86 to 3.05) | 1.51 (0.77 to 2.93) | 1.65 (0.74 to 3.67) |
| >40 | 2.75 (1.22 to 6.20) | 2.49 (1.06 to 5.82) | 3.43 (1.28 to 9.20) |
| p Value (two tailed) for pack years | 0.002 | 0.007 | 0.003 |
| Pack years of smoking other tobacco products | |||
| 0† | 1.00 | 1.00 | 1.00 |
| 0.1–20 | 1.34 (0.83 to 2.16) | (0.83 to 2.28) | 1.15 (0.62 to 2.10) |
| 20.1–40 | 0.82 (0.22 to 3.00) | 1.05 (0.28 to 3.96) | 1.21 (0.27 to 5.36) |
| >40 | 0.28 (0.06 to 1.37) | 0.13 (0.01 to 1.26) | 0.67 (0.14 to 3.35) |
| p Value (two tailed) for pack years of other tobacco smoked | 0.21 | 0.18 | 0.91 |
| Inhaled | |||
| Not at all† | 1.00 | 1.00 | 1.00 |
| A little | 1.01 (0.59 to 1.71) | 0.96 (0.55 to 1.70) | 1.09 (0.55 to 2.13) |
| Deeply | 1.00 (0.55 to 1.82) | 1.05 (0.56 to 1.98) | 0.86 (0.39 to 1.88) |
| p Value (two tailed) for inhaled | 1.00 | 0.95 | 0.76 |