Table 1.
Baseline characteristics of the cohort of lung cancer patients
| NSCLC (N = 7321) | SCLC (N = 2807) | Overall (N = 10 128) | |
|---|---|---|---|
| Subgroup | |||
| Stage III NSCLC | 3248, 44.37% | 0, 0.00% | 3248, 32.07% |
| Stage IV NSCLC | 4073, 55.63% | 0, 0.00% | 4073, 40.22% |
| Limited SCLC | 0, 0.00% | 1095, 39.01% | 1095, 10.81% |
| Extensive SCLC | 0, 0.00% | 1712, 60.99% | 1712, 16.90% |
| Weight loss | |||
| Weight loss ≤ 5% | 5399, 73.75% | 1940, 69.11% | 7339, 72.46% |
| Weight loss > 5% | 1922, 26.25% | 867, 30.89% | 2789, 27.54% |
| Race | |||
| Black | 704, 9.62% | 163, 5.81% | 867, 8.56% |
| Other | 332, 4.53% | 64, 2.28% | 396, 3.91% |
| White | 6285, 85.85% | 2580, 91.91% | 8865, 87.53% |
| Histology | |||
| Adenocarcinoma | 3005, 41.05% | 0, 0.00% | 3005, 29.67% |
| Other NSCLC | 2663, 36.37% | 0, 0.00% | 2663, 26.29% |
| SCLC | 0, 0.00% | 2807, 100.00% | 2807, 27.72% |
| Squamous | 1653, 22.58% | 0, 0.00% | 1653, 16.32% |
| Performance status | |||
| Ambulatory | 4203, 57.41% | 1415, 50.41% | 5618, 55.47% |
| Fully active | 2734, 37.34% | 987, 35.16% | 3721, 36.74% |
| In bed less than half of time | 384, 5.25% | 405, 14.43% | 789, 7.79% |
| Age | |||
| Age ≤ 60 | 2970, 40.57% | 1100, 39.19% | 4070, 40.19% |
| 60 < Age < 70 | 2558, 34.94% | 1091, 38.87% | 3649, 36.03% |
| Age ≥ 70 | 1793, 24.49% | 616, 21.95% | 2409, 23.79% |
| Gender | |||
| Female | 2702, 36.91% | 1188, 42.32% | 3890, 38.41% |
| Male | 4619, 63.09% | 1619, 57.68% | 6238, 61.59% |
| BMI | |||
| BMI < 20 | 703, 9.60% | 255, 9.08% | 958, 9.46% |
| 20 ≤ BMI < 22 | 847, 11.57% | 286, 10.19% | 1133, 11.19% |
| 22 ≤ BMI < 25 | 1755, 23.97% | 612, 21.80% | 2367, 23.37% |
| 25 ≤ BMI < 28 | 1789, 24.44% | 696, 24.80% | 2485, 24.54% |
| BMI ≥ 28 | 2227, 30.42% | 958, 34.13% | 3185, 31.45% |
| Disease | |||
| Advanced | 4073, 55.63% | 1712, 60.99% | 5785, 57.12% |
| Early | 3248, 44.37% | 1095, 39.01% | 4343, 42.88% |
Note: Categorical variables by N (%).