| Study groups | P value | |
---|---|---|---|
esSCLC | mNSCLC | ||
Overall, (n, %) | 5,855 (100.0) | 24,090 (100.0) | - |
Age | Â | Â | Â |
  Mean (SD) | 73.5 (5.6) | 74.4 (6.0) | < 0.001 |
Age group, n (%) | Â | Â | Â |
  65-74 years | 3,474 (59.3) | 12,911 (53.6) | < 0.001 |
  75-84 years | 2,170 (37.1) | 9,749 (40.5) | |
  ≥ 85 years | 211 (3.6) | 1,430 (5.9) | |
Gender, n (%) | Â | Â | Â |
  Male | 2,998 (51.2) | 13,535 (56.2) | < 0.001 |
  Female | 2,857 (48.8) | 10,555 (43.8) | |
Race, n (%) | Â | Â | Â |
  White | 5,243 (89.6) | 20,519 (85.2) | < 0.001 |
  Black | 376 (6.4) | 2,102 (8.7) | |
  Other/unknown | 236 (4.0) | 1,469 (6.1) | |
Census region, n (%) | Â | Â | Â |
  Northeast | 1,303 (22.3) | 5,620 (23.3) | < 0.001 |
  Midwest | 941 (16.1) | 3,521 (14.6) | |
  South | 1,482 (25.3) | 5,397 (22.4) | |
  West | 2,129 (36.4) | 9,552 (39.7) | |
Urban/rural status of residency, n (%)a | Â | Â | Â |
  Big metro | 3,029 (51.7) | 13,331 (55.3) | < 0.001 |
  Metro | 1,708 (29.2) | 6,905 (28.7) | |
  Urban | 409 (7.0) | 1,568 (6.5) | |
  Less urban | 566 (9.7) | 1,865 (7.7) | |
  Rural | 143 (2.4) | 421 (1.8) | |
Tumor histology, n (%) | Â | Â | Â |
 esSCLC cases |  |  |  |
  Small cell carcinoma | 5,855 (100.0) | - | - |
 mNSCLC cases |  |  |  |
  Squamous cell | - | 4,865 (20.2) | - |
  Adenocarcinoma | - | 9,816 (40.7) | - |
  Large Cell | - | 1,363 (5.7) | - |
  Other specified carcinomas | - | 316 (1.3) | - |
  Carcinomas unspecified | - | 7,730 (32.1) | - |
Charlson comorbidity index score | Â | Â | Â |
  Mean (SD) | 1.6 (1.9) | 1.4 (1.9) | < 0.001 |