Variable Parameter Estimate Standard Error  p-value
OSA (Yes) -0.409 0.719 0.569
Age (per year increase) 0.049 0.019 0.009
Gender (Male) 0.129 0.435 0.766
BMI (per one unit increase) -0.043 0.033 0.197
FEV1 (% Pred) -0.013 0.013 0.300
DLCO (% Pred) -0.002 0.011 0.836
HTN (Yes) -0.137 0.417 0.743
CHF (Yes) 2.232 1.143 0.052
CAD (Yes) 0.099 0.528 0.852
PVD (Yes) 0.098 0.796 0.903
COPD (Yes) 0.417 0.522 0.425
Smoking (Yes) 0.670 0.510 0.191
Diabetes (Yes) -0.393 0.587 0.504
Procedure time (per minute increase) 0.00007 0.00005 0.183
Operative approach (Thoractomy vs. VATS) 0.333 0.550 0.546
Table 4: Multiple linear regression of preoperative factors with post operative length of stay.