Table 3.

Demographic information of the subjects involved in the lung cancer study and their effect on PWS parameters

Demographic factorInformationEffect on Ld, ANCOVA PEffect on σLd, ANCOVA P
Age (mean ± SD), yControl: 70 ± 100.260.36
Cancer: 69 ± 12
Smoking (median ± SD), pack-yearsControl: 80 ± 360.300.30
Cancer: 50 ± 50
Race (%White)Control: 88%0.100.18
Cancer: 90%
Gender (%male)Control: 69%0.350.40
Cancer: 37%
  • NOTE: The table indicates that both Ld(g) and σ(g) are not confounded by the patient demographic factors.