Table 5.
Preoperative characteristics and comorbidities of patients receiving surgery at our institution for clinical Stage I NSCLC at early versus delayed time points.
| Patient Characteristics | Surgery < 8 weeks (n=544), 54% | Surgery ≥ 8 weeks (n=449), 46% | P value |
|---|---|---|---|
|
| |||
| Female gender | 276 (53%) | 232 (52%) | 0.747 |
|
| |||
| Mean age (years) | 66.0 ± 10.1 | 66.9 ± 9.7 | 0.151 |
|
| |||
| Caucasian race | 466 (89%) | 368 (82%) | 0.001 |
|
| |||
| Mean annual income (US dollars) | 50,637 ± 19,733 | 51,606 ± 22,798 | 0.480 |
|
| |||
| FEV1 (L) | 2.13 ± 0.73 | 2.05 ± 0.73 | 0.086 |
|
| |||
| FEV1% predicted | 80 ± 19 | 78 ± 21 | 0.040 |
|
| |||
| DLCO (L) | 16.44 ± 5.9 | 15.40 ± 5.6 | 0.009 |
|
| |||
| DLCO% predicted | 72 ± 23 | 71 ± 24 | 0.505 |
|
| |||
| Clinical T1 stage | 338 (65%) | 342 (76%) | <0.0001 |
|
| |||
| Smoking history | |||
| Never smoker | 50 (10%) | 41 (9%) | 0.432 |
| Past smoker | 302 (58%) | 244 (54%) | |
| Current smoker | 170 (33%) | 164 (37%) | |
|
| |||
| ACE Score | |||
| 0 | 83 (16%) | 37 (8%) | <0.0001 |
| 1 | 211 (40%) | 156 (35%) | |
| 2 | 125 (24%) | 125 (28%) | |
| 3 | 63 (12%) | 79 (18%) | |
| Unknown | 40 (8%) | 52 (12%) | |
|
| |||
| Diabetes Mellitus | 87 (17%) | 72 (16%) | 0.227 |
|
| |||
| Congestive Heart Failure | 7 (1%) | 15 (3%) | 0.029 |
|
| |||
| Hypertension | 270 (52%) | 282 (63%) | 0.001 |
|
| |||
| Coronary Artery Disease | 84 (16%) | 117 (26%) | <0.0001 |
|
| |||
| Chronic Renal Insufficiency | 21 (4%) | 18 (4%) | 0.600 |
|
| |||
| Pulmonary Hypertension | 3 (0.6%) | 7 (1.6%) | 0.194 |
|
| |||
| History of Myocardial Infarction | 46 (9%) | 57 (13%) | 0.044 |