Skip to main content

Table 2 Differences in circulating cytokines levels between patients with migraine and healthy controls

From: Cytokines in primary headache disorders: a systematic review and meta-analysis

Cytokine

N of studies

Total participants

Std. Mean Difference (95% CI) Effect Estimate

P Value

I2

IL-1β

7

502

0.50 (-0.54, 1.54)

0.34

96%

IL-2

6

348

0.58 (-0.37, 1.54)

0.23

92%

IL-4

5

346

0.88 (-1.65, 3.41)

0.49

98%

IL-6

16

264

1.07 (0.40, 1.73)

0.002

96%

IL-8

6

163

1.56 (0.03, 3.09)

0.04

95%

IL-10

12

706

0.10 (-0.74, 0.94)

0.41

95%

TGF-β

2

219

2.05 (-0.29, 4.40)

0.09

98%

TNF-α

14

914

0.61 (0.14, 1.09)

0.01

90%

IFN-γ

6

301

1.23 (-0.03, 2.49)

0.06

93%

  1. Abbreviations: CI Confidence interval, I2 Measure of heterogeneity, IL-1β Interleukin-1β, IL-, Interleukin-2, IL-6 Interleukin-6, IL-4 Interleukin-4, IL-8 Interleukin-8, IL-10 Interleukin-10, TGF-β Transforming growth factor β, TNF-α Tumor necrosis factor alpha, IFN-γ Interferon gamma