Table 3 Estimates of being a non-smoker in Danish adults with and without COPD

 2000–2005

1.22

0.92; 1.61

0.163

1.17

1.11; 1.23

<0.001

 2005–2010

1.15

0.88; 1.50

0.294

1.48

1.39; 1.58

<0.001

 2000–2010

1.41

1.07; 1.85

<0.015

1.73

1.63; 1.85

<0.001

 Age (years)

1.05

1.04; 1.05

<0.001

1.01

1.01; 1.02

<0.001

 Body mass index (kg · m⁻²)

1.08

1.05; 1.10

<0.001

1.06

1.06; 1.07

<0.001

 Exceeding alcohol limits

0.49

0.36; 0.67

<0.001

0.51

0.47; 0.54

<0.001

 Physical activity

0.68

0.53; 0.88

0.003

0.58

0.54; 0.62

<0.001

 Married/living with a partner

1.58

1.25; 2.00

<0.001

1.45

1.37; 1.53

<0.001

 Gender (male)

0.76

0.60; 0.96

0.021

0.78

0.74; 0.82

<0.001

  < 10 vs. 10-12

0.72

0.14; 1.31

0.015

0.72

0.59; 0.84

<0.001

  < 10 vs. +13

0.99

0.09; 1.88

0.030

1.63

1.49; 1.77

<0.001

 10-12 vs. +13

0.27

−0.58; 1.11

0.536

0.92

0.81; 1.02

<0.001