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Table 2 Subgroup analysis of cruciferous vegetables consumption and the risk of ovarian cancer

From: Cruciferous vegetables consumption and the risk of ovarian cancer: a meta-analysis of observational studies

 

No. of studies

Pooled estimate

Tests of heterogeneity

 

RR

95% CI

P value

I2(%)

All studies

11

0.90

0.82- 0.98

0.204

25.2

Study design

Cohort

5

1.00

0.85-1.11

0.897

0.0

Case–control

6

0.84

0.75-0.94

0.091

47.4

Study location

Europe

4

0.88

0.79-0.99

0.656

0.0

North America

4

0.88

0.77-1.02

0.043

63.2

Asia

2

0.84

0.53-1.34

0.217

34.5

Australia

1

1.16

0.81-1.67

/

/

Data source

Hospital-based

4

0.82

0.72-0.94

0.119

48.8

Population-based

7

0.95

0.85-1.07

0.577

0.0

  1. The data in bold demonstrate significant results.
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Diagnostic Pathology

ISSN: 1746-1596

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