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Table 3 Subgroup analysis of tea consumption and fracture risk with combined OR

From: Tea consumption didn’t modify the risk of fracture: a dose–response meta-analysis of observational studies

 

Subgroups

No. of studies

Summary effect

Heterogeneity

   

OR

(95% CI)

p Value

I2,%

p Value

Study design

Cohort

3

0.97

0.89-1.06

0.486

1.05

0.591

Case–control

6

0.91

0.70-1.19

0.499

80.1

<0.001

Site

Europe

4

0.827

0.61-1.13

0.232

72.4

0.012

Americas

2

1.01

0.88-1.1

0.52

0

0.857

Asia

3

0.921

0.68-1.25

1.41

82.2

0.001

Gender

Male

2

0.818

0.62-1.09

0.168

29.9

0.232

Female

6

0.961

0.77-1.20

0.726

70

0.005

Fracture type

Hip fracture

8

0.897

0.74-1.09

0.276

75.8

<0.001

 

Humeral fracture

2

0.943

0.71-1.25

0.679

0

0.889

  1. OR: odds ratio.
  2. The results with statistical significance were marked in bold.