The regional association between bronchiectasis and lung cancer in chest CT

BMC Pulmonary Medicine

Table 4 Risk of Lung Cancer in Patients with Underlying Bronchiectasis Estimated by General Estimating Equation^a

Population	β-value	95 % CI	p-value
Total	−1.091	−1.716 - -0.466	0.001
Classified by smoking history
Current/Former smoker	−1.012	−1.869 - -0.155	0.021
Never-smoker	−1.152	−2.043 - -0.261	0.011
Classified by emphysema severity
No/mild emphysema	−1.244	−2.075 - -0.412	0.003
Moderate emphysema	−0.981	−2.287 - 0.325	0.141
Severe emphysema	−0.673	−1.995 - 0.649	0.318

^a β-value calculated by evaluating bronchiectasis as a risk factor of lung cancer

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