Skip to main content

Table 2 Summary of subgroup analysis by ethnicity

From: Survivin protein expression is involved in the progression of non-small cell lung cancer in Asians: a meta-analysis

Studies

Ethnicity (n)

Studies (n)

Combined RR (95 % CI)

P(Z)

I2

P(Q)

NSCLC vs. Control

All

19

7.16(4.63-11.07)

<0.001

58.1 %

0.001

 

Asians

18

6.60(4.33-10.05)

<0.001

55..4 %

0.002

 

Caucasians

1

101(6.34-1608)

0.001

/

/

Squamous cell carcinoma vs. Adenocarcinoma

All

22

1.00(0.93, 1.07)

0.983

7.0 %

0.367

 

Asians

19

0.97(0.90-1.05)

0.44

0 %

0.189

 

Caucasians

3

1.01(0.78-1.30)

0.959

40.0 %

0.515

Well/Moderately differentiated vs. Poor differentiated

All

21

0.80(0.73-0.87)

<0.001

45.4 %

0.013

 

Asians

20

0.78(0.72-0.86)

<0.001

33 %

0.077

 

Caucasians

1

0.96(0.86-1.08)

0.487

/

/

TNMI/II stage vs. TNM III/IVstage

All

26

0.75(0.67-0.84)

<0.001

72.7 %

<0.001

 

Asians

22

0.74(0.65-0.84)

<0.001

71.4 %

<0.001

 

Caucasians

4

0.89(0.75-1.07)

0.222

39 %

0.178

Lymph node metastasis vs. Non lymph node metastasis

All

25

1.14(1.01-1.29)

0.035

71.5 %

<0.001

 

Asians

22

1.16(1.01-1.34)

0.037

72.7 %

<0.001

 

Caucasians

3

1.03(0.80-1.32)

0.839

64.2 %

0.061

Small Tumor vs. Big Tumor

All

11

0.95(0.86-1.05)

0.336

18.1 %

0.272

 

Asians

9

0.98(0.85-1.13)

0.796

31 %

0.171

 

Caucasians

2

0.90(0.78-1.04)

0.161

0 %

0.729