Table 4 The results of multivariate regression analysis for the severity of emphysema and gas-trapping*
From: Epidemiology, radiology, and genetics of nicotine dependence in COPD
Log (% emphysema) | % gas-trapping | |||||||
|---|---|---|---|---|---|---|---|---|
Group | COPD | Control | COPD | Control | ||||
variables | β | p | β | p | β | p | β | p |
Age | 0.01 | 0.17 | 0.01 | 0.06 | 0.23 | 0.046 | 0.32 | <.0001 |
Female | -0.69 | <.0001 | -0.60 | <.0001 | -5.72 | 0.0003 | -2.14 | 0.02 |
African-American | -0.10 | 0.51 | -0.26 | 0.01 | 1.01 | 0.59 | 0.24 | 0.80 |
BMI, kg/m2 | -0.06 | <.0001 | -0.01 | 0.12 | -1.04 | <.0001 | -0.28 | 0.0003 |
FEV1pred% | -0.03 | <.0001 | 0.01 | 0.002 | -0.69 | <.0001 | -0.003 | 0.94 |
FTND score | -0.07 | 0.01 | -0.07 | 0.0003 | -0.62 | 0.09 | -0.04 | 0.92 |
Pack-years of smoking | 0.003 | 0.25 | 0.002 | 0.50 | 0.03 | 0.36 | -0.02 | 0.49 |