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. 2021 Jul 22;11:15042. doi: 10.1038/s41598-021-94468-y

Table 1.

Demographic and clinical data of the extended BALF dataset.

Variables LC
(N = 49)
Non-LC
(N = 40)
P value*
Age (yrs.±SD) 65.6 ± 11.4 59.5 ± 12.7 0.01805
Sex, men N (%) 41 (83.7) 27 (54.0) NS
Smoking status N (%)
Smoker 16 (32.7) 10 (25.0) NS
Former smoker 17 (34.7) 10 (25.0)
Non-smoker 9 (18.4) 15 (37.5)
Unknown 7 (14.3) 5 (12.5)
LC Diagnosis N (%)
NSCLC 25 (51.0) NA
ADC 17 (34.7)
SCC 5 (10.2)
LCC 1 (2.0)
Unknown 2 (4.1)
SCLC 5 (10.2)
Others 2 (4.1)
Unknown 17 (34.7)
Non-LC Diagnosis N (%)
Hemoptysis 5 (12.5) NA
Atelectasis 3 (7.5)
Unaffected 2 (5.0)
Benign findings 9 (22.5)
Asthma 1 (2.5)
Hamartoma 1 (2.5)
Other 7 (17.5)
Unknown 14 (35.0)

*P values based on Welch's t-test or chi-square (normal distributed or categorical variables, respectively) for the comparison lung cancer (LC) and non-LC groups. NS—non-significant (p value > 0.05). NA—not applicable.