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Table 1 Baseline esSCLC and mNSCLC patient characteristics

From: Comparison of demographics, treatment patterns, health care utilization, and costs among elderly patients with extensive-stage small cell and metastatic non-small cell lung cancers

 

Study groups

P value

esSCLC

mNSCLC

Overall, (n, %)

5,855 (100.0)

24,090 (100.0)

-

Age

   

  Mean (SD)

73.5 (5.6)

74.4 (6.0)

< 0.001

Age group, n (%)

   

  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 (%)

   

  Male

2,998 (51.2)

13,535 (56.2)

< 0.001

  Female

2,857 (48.8)

10,555 (43.8)

Race, n (%)

   

  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 (%)

   

  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

   

  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 (%)

   

 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

   

  Mean (SD)

1.6 (1.9)

1.4 (1.9)

< 0.001

  1. mNSCLC = metastatic non-small cell lung cancer; esSCLC = extensive-stage small cell lung cancer; SD = standard deviation.
  2. aUrban/rural definitions per SEER registry: Big Metro = counties in metro areas of >1 million population; Metro = counties in metro areas of ≥1 million population; Urban = areas of ≥20,000 population adjacent/non-adjacent to (but not in) a metro area; Less Urban = areas of <20,000 population adjacent/non-adjacent to (but not in) a metro area; Rural = completely rural or urban population <2,500 adjacent/non-adjacent to (but not in) a metro area.