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Table 2 Subgroup analysis results for various factors

From: Metabolic syndrome and increased susceptibility to renal cell carcinoma – a meta-analysis

 

Random-effects model

Fixed-effects model

Heterogeneity

Heterogeneity between groups

Analysis

N

HR (95%CI)

P

HR (95%CI)

P

I2

Ph

P

Subgroup 1: PC

7

1.50 (1.33, 1.70)

 < 0.001

1.57 (1.51, 1.62)

 < 0.001

79.00%

 < 0.001

 < 0.001

RC

3

1.34 (1.27, 1.41)

 < 0.001

1.34 (1.27, 1.41)

 < 0.001

0.00%

0.606

Subgroup 2: man

6

1.47 (1.26, 1.72)

 < 0.001

1.51 (1.46, 1.56)

 < 0.001

89.50%

 < 0.001

0.068

woman

4

1.42 (1.32, 1.53)

 < 0.001

1.42 (1.35, 1.51)

 < 0.001

25.00%

0.261

Subgroup 3: BMI

2

1.43 (1.29, 1.58)

 < 0.001

1.49 (1.45, 1.53)

 < 0.001

86.60%

 < 0.001

0.707

WC

8

1.53 (0.90, 2.59)

0.113

1.58 (1.16, 2.15)

0.004

65.00%

0.091

Subgroup 4: UK

2

1.31 (1.02, 1.69)

0.032

1.28 (1.12, 1.47)

 < 0.001

67.90%

0.078

0.022

China

3

1.63 (1.01, 2.63)

0.045

1.84 (1.44, 2.35)

 < 0.001

63.30%

0.066

Korea

5

1.43 (1.28, 1.60)

 < 0.001

1.49 (1.45, 1.54)

 < 0.001

89.70%

 < 0.001

Subgroup 5: Follow-up ≥ 10

5

1.35 (1.05, 1.74)

0.021

1.34 (1.18, 1.51)

 < 0.001

67.70%

0.016

0.071

Follow-up < 10

5

1.47 (1.32, 1.64)

 < 0.001

1.50 (1.45, 1.54)

 < 0.001

89.90%

 < 0.001