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Table 3 Causal effects of SS on serum 25(OH)D levels in MR analysis

From: Serum vitamin D levels and Sjogren’s syndrome: bi-directional Mendelian randomization analysis

Exposure

Outcome

SNPs (n)

MR method

β

95% CI

P-value

SS

25(OH)D

4

IVW

0.0076

(− 0.0031, 0.0183)

0.1640

Weighted median

0.0114

(− 0.0011, 0.0239)

0.0773

MR-Egger (P for heterogeneity = 0.8218; P for pleiotropy = 0.679)

0.0350

(− 0.0030, 0.0731)

0.2128

MR-PRESSO global test

-

-

0.5317

  1. SS Sjogren’s syndrome, 25(OH)D 25-hydroxyvitamin D, SNPs Single nucleotide polymorphisms, CI Confidence intervals, IVW Inverse-variance weighted