Table 1 Main characteristics and results of the eligible studies

From: Role of Bcl-2 as a prognostic factor for survival in lung cancer: a systematic review of the literature with meta-analysis

 

All studies

NSCLC

SCLC

Neuroendocrine tumours

 

Any stage

Locoregional (I–II)

Surgical treatment (I–III)

 

Total

S

Total

S

Total

S

Total

S

Total

S

Total

S

Number of studies

28 (25)

11 (11)

7 (6)

2 (2)

6 (5)

2 (2)

8 (7)

6 (6)

4 (4)

0

3 (3)

1 (1)

  1. NSCLC=non-small cell lung cancer; SCLC=small cell lung cancer; S=number of studies identifying Bcl-2 positivity as a statistically significant good prognostic factor; ( )=number of studies evaluable for meta-analysis.