Table 1 Main characteristics and results of the eligible studies

From: Ki-67 expression and patients survival in lung cancer: systematic review of the literature with meta-analysis

   

NSCLC

      
 

All studies

Any stage (I–IV)

Locoregional (I–II)

Surgical treatment (I–III)

SCLC

Carcinoid tumours

Any histology any stage

 

Total

S

Total

S

Total

S

Total

S

Total

S

Total

S

Total

S

Number of studies

37 (20)

15 (10)

10 (5)

4 (4)

8 (5)

3 (2)

11 (6)

3 (2)

1 (1)

1 (1)

2 (1)

2 (1)

5 (2)

2 (0)

  1. NSCLC=non-small-cell lung cancer; SCLC=small-cell lung cancer; S=number of studies identifying Ki-67 positivity as a statistically significant prognostic factor; ()=number of studies evaluable for meta-analysis.
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