Table 1. Baseline characteristics of all lung cancer patients with available CT data.

SCLC, small cell lung cancer; NSCLC, non–small cell lung cancer.

VariablePA ≥ 28 mmPA < 28 mmP
Number250 (48%)269 (52%)
Age (years)66.5 ± 9.664.4 ± 10.00.015
Female23% (58)40% (107)<0.001
Body mass index26.7 ± 11.924.2 ± 5.20.015
Nasal oxygen dependency8 (110)1 (126)0.013
Arterial PO2*65.6 ± 10.970.7 ± 9.0<0.001
Histological classification151174
NSCLC2930
SCLC7065
Not otherwise specified31% (33)42% (44)
Non-COPD†9% (10)8% (8)
COPD stage†32% (34)26% (28)
GOLD stage I21% (22)19% (20)
GOLD stage II7% (7)6% (6)
GOLD stage III
GOLD stage IV

*Only PO2 measurements in the absence of nasal oxygen are included.

†Lung function was not obtained in all patients.