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Table 3 Sub-group analysis for the relative risk of anxiety meta-analysis

From: Incidence of anxiety after traumatic brain injury: a systematic review and meta-analysis

Sub-group

Number of studies

Number of participants (TBI vs control)

RR (95CI), I2

P-value of sub-group difference

Type of anxiety

Anxiety disorder

11

566,930 vs 1,636,443

2.25 (1.85, 2.73), 100%

 < 0.01

Anxiety symptoms

21

2,845 vs 3,732

1.58 (1.29, 2.93) 69%

Type of TBI

Mild TBI

23

39,328 vs 49,363

1.82 (1.41, 2.34), 94%

0.16

Moderate-severe TBI

7

4,602 vs 4,868

2.26 (1.92, 2.67), 10%

  1. Abbreviations: TBI Traumatic brain injury, RR Relative risk