Among smokers, the mean pack-years were higher in the malignant group (22.1 ± 8.5) than the benign group (18.5 ± 7.2), although this difference did not reach statistical significance ( p = 0.087).
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Comparing Quality of Life and Psychological Changes in Benign and Malignant Lung Resections.
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0.0870
0.0870