Table Ia.
Baseline Characteristics According to Treatment of Stage IIIB Non-small Cell Lung Cancer Patients
| Characteristic | Untreated (N=624) |
RT Alone (N=584) |
Chemotherapy Alone (N=461) |
Chemotherapy and RT (N=927) |
P-value |
|---|---|---|---|---|---|
| Age (median, IQR) | 77 (8) | 78 (8) | 75 (6) | 75 (6) | <0.0001 |
| Female, N (%) | 238 (38.1) | 262 (44.9) | 207 (44.9) | 400 (43.2) | 0.06 |
| Married, N (%) | 296 (47.4) | 301 (51.5) | 240 (52.1) | 525 (56.6) | 0.005 |
| Race/Ethnicity, N (%) | |||||
| White | 497 (79.7) | 489 (83.7) | 380 (82.4) | 805 (86.8) | 0.02 |
| Black | 65 (10.4) | 53 (9.1) | 38 (8.2) | 61 (6.6) | |
| Hispanic | 21 (3.4) | 22 (3.8) | 17 (3.7) | 23 (2.5) | |
| Other | 41 (6.6) | 20 (3.4) | 26 (5.6) | 38 (4.1) | |
| Median Annual Neighborhood Income, N (%) | |||||
| First Quartile* | 191 (30.6) | 157 (26.9) | 104 (22.6) | 187 (22.5) | 0.03 |
| Second Quartile | 158 (25.3) | 151 (25.9) | 117 (25.4) | 237 (25.6) | |
| Third Quartile | 144 (23.1) | 139 (23.8) | 116 (25.2) | 236 (25.5) | |
| Fourth Quartile | 131 (21.0) | 137 (23.5) | 124 (26.9) | 245 (26.5) | |
| Comorbidity Score, N (%) | |||||
| <1 | 257 (41.2) | 217 (37.2) | 189 (41.0) | 409 (44.1) | 0.0005 |
| 1–2 | 152 (24.4) | 171 (29.3) | 132 (28.6) | 286 (30.9) | |
| >2 | 215 (34.5) | 196 (33.6) | 140 (30.4) | 232 (25.0) | |
| Histology, N (%) | |||||
| Adenocarcinoma | 251 (40.2) | 176 (30.1) | 208 (45.1) | 334 (36.0) | <0.0001 |
| Squamous Cell | 267 (42.8) | 306 (52.4) | 170 (36.9) | 465 (50.2) | |
| Large Cell | 37 (5.9) | 48 (8.2) | 32 (6.9) | 68 (7.3) | |
| Other | 69 (11.1) | 54 (9.3) | 51 (11.1) | 60 (6.5) | |
| Tumor Site, N (%) | |||||
| Upper | 300 (48.1) | 325 (55.7) | 227 (49.2) | 515 (55.6) | 0.002 |
| Middle | 30 (4.8) | 16 (2.7) | 23 (5.0) | 37 (4.0) | |
| Lower | 137 (22.0) | 126 (21.6) | 128 (27.8) | 199 (21.5) | |
| Unknown | 157 (25.2) | 117 (20.0) | 83 (18.0) | 176 (19.0) | |
RT denotes radiation therapy, IQR denotes interquartile range
*
Indicates lowest income quartile