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Table 1 Characteristics of patients with chemorefractory and chemosensitive small cell lung cancer

From: Molecular analysis of cell-free DNA identifies distinct molecular features in patients with chemosensitive and chemorefractory small cell lung cancer

Characteristic

Chemorefractory group

Chemosensitive group

Total (cases)

12

16

Age [years; median (range)]

60.5 (47–72)

57 (36–78)

  < 40 [cases (%)]

0 (0)

2 (12.5)

 40–49 [cases (%)]

1 (8.3)

1 (6. 3)

 50–59 [cases (%)]

4 (33.3)

9 (56.3)

 60–69 [cases (%)]

5 (41.7)

2 (12.5)

  ≥ 70 [cases (%)]

2 (16.7)

2 (12.5)

Gender [cases (%)]

 Male

11 (91.7)

9 (56.3)

 Female

1 (8.3)

7 (43.8)

Disease stage [cases (%)]

 Limited stage

3 (25.0)

12 (75.0)

 Extensive stage

9 (75.0)

4 (25.0)

Cycles of first-line regimen [cases (%)]

 1–2

5 (41.7)

0 (0.0)

 3–4

3 (25.0)

5 (31.3)

 5–6

4 (33.3)

11 (68.8)

Follow-up [months; median (range)]

10 (5–16)

43.5 (26–103)