Table 2.
Factors Associated with Receipt of Surgery in Stage I/II non-Small Cell Lung Cancer Patients Diagnosed in 1996, 2005, and 2010, Patterns of Care (N=836)
| Characteristic | N1 | %2 | p3 | OR4 (95% CI) |
|---|---|---|---|---|
| Year of diagnosis | ||||
| 1996 | 188 | 78.8 | 0.18 | |
| 2005 | 201 | 70.6 | ||
| 2010 | 237 | 68.5 | ||
| Sex | ||||
| Male | 277 | 67.6 | 0.10 | |
| Female | 349 | 76.0 | ||
| Age at diagnosis, years | ||||
| <70 | 402 | 84.7 | <0.01 | 1.00 |
| 70–79 | 169 | 70.5 | 0.31 (0.16 – 0.63) | |
| ≥80 | 55 | 38.2 | 0.04 (0.02 – 0.10) | |
| Race/ethnicity | ||||
| non-Hispanic white | 236 | 71.4 | <0.01 | 1.00 |
| non-Hispanic black | 155 | 64.4 | 0.56 (0.23 – 1.37) | |
| non-Hispanic other | 105 | 80.2 | 2.05 (0.78 – 5.37) | |
| Hispanic | 130 | 84.7 | 1.38 (0.49 – 3.86) | |
| Health insurance | ||||
| Other (Private/HMO/VA) | 457 | 78.0 | <0.01 | 1.00 |
| Medicaid, any | 78 | 46.5 | 0.14 (0.05 – 0.40) | |
| Medicare only | 70 | 59.7 | 0.34 (0.14 – 0.78) | |
| None/Unknown | 21 | 58.0 | 0.38 (0.07 – 2.12) | |
| Marital status | ||||
| Not Married | 276 | 66.1 | 0.05 | 1.00 |
| Married | 350 | 76.1 | 0.94 (0.47 – 1.88) | |
| COPD | ||||
| No | 389 | 79.1 | <0.01 | 1.00 |
| Yes | 237 | 63.4 | 0.70 (0.37 – 1.33) | |
| Charlson comorbidity score5 | ||||
| 0 | 475 | 73.3 | 0.25 | |
| 1 | 234 | 72.8 | ||
| ≥2 | 18 | 43.0 | ||
| Smoking history | ||||
| Never | 91 | 85.6 | 0.02 | 1.00 |
| Ever Unknown |
499 36 |
71.9 48.5 |
0.30 (0.03 – 2.94) 0.13 (0.01 – 2.66) |
|
| Stage6 | ||||
| I | 514 | 73.5 | 0.25 | |
| II | 112 | 65.5 | ||
| Histology | ||||
| Squamous | 159 | 55.6 | <0.01 | 1.00 |
| Adenocarcinoma | 332 | 86.2 | 2.92 (1.38 – 6.20) | |
| Carcinoma, NOS | 110 | 67.9 | 1.32 (0.56 – 3.14) | |
| Large | 25 | 81.1 | 6.11 (1.96 – 19.00) | |
| Radiation | ||||
| No | 561 | 89.0 | <0.01 | 1.00 |
| Yes | 65 | 24.4 | 0.03 (0.01 – 0.06) | |
| Systemic therapy | ||||
| No | 499 | 75.0 | 0.05 | 1.00 |
| Yes | 127 | 62.0 | 1.03 (0.50 – 2.16) |
1
Unweighted number of Stage I/II patients receiving surgery
2
Weighted percentage of Stage I/II patients receiving surgery
3
Bivariate Χ2
4
Estimated odds ratio of receiving surgery, adjusted for variables found to be significant during bivariate analyses.
5
Charlson comorbidity score, excluding lung cancer and COPD from the calculation.
6
American Joint Committee on Cancer (1996: 3rd Edition; 2005 and 2010: 6th Edition)
CI: Confidence Interval; COPD: Chronic Obstructive Pulmonary Disease; OR: Odds Ratio; NOS: not otherwise specified; VA: Veteran Affairs