Skip to main content

Table 1 Main results of the MR analysis

From: Causal effects of COVID-19 on structural changes in specific brain regions: a Mendelian randomization study

Exposures

Outcomes

nSNPs

Method

β (95%CI)

SE

p value

COVID-19 vs. general population

 Thickness of caudal middle frontal gyrus

28

IVW

− 0.0044 (− 0.0087, − 0.0002)

0.0022

0.0412

Hospitalized COVID-19 vs. general population

 Thickness of lateral orbitofrontal gyrus

26

IVW

− 0.0049 (− 0.0093, − 0.0004)

0.0023

0.0328

 Surface area of middle temporal gyrus

26

IVW

− 10.8855 (− 20.5067, − 1.2642)

4.9088

0.0266

Hospitalized COVID-19 vs. non-hospitalized COVID-19

 Thickness of rostral middle frontal gyrus

20

IVW

− 0.0022 (− 0.0037, − 0.0008)

0.0008

0.0032

Severe COVID-19 vs. general population

 Thickness of cuneus

39

IVW

− 0.0024 (− 0.0043, − 0.0004)

0.0010

0.0168

 Volume of hippocampus

36

IVW

− 15.9127 (− 26.2067, − 5.6188)

5.2520

0.0024

Severe COVID-19 with respiratory failure vs. general population

 Thickness of rostral middle frontal gyrus

14

IVW

− 0.0014 (− 0.0025, − 0.0002)

0.0006

0.0190

 Thickness of caudal middle frontal gyrus

14

IVW

− 0.0017 (− 0.0032, − 0.0002)

0.0008

0.0244

 Surface area of pericalcarine

14

IVW

− 2.6628 (− 5.3167, − 0.0089)

1.3540

0.0492

 Surface area of superior parietal gyrus

14

IVW

− 5.6310 (− 11.0270, − 0.2348)

2.7532

0.0408

Critical COVID-19 vs. general population

 Thickness of middle temporal gyrus

92

IVW

− 0.0002 (− 0.0003, 0)

0.0001

0.0462

 Surface area of middle temporal gyrus

92

IVW

− 0.5261 (− 0.9793, − 0.0729)

0.2312

0.0229

 Surface area of parahippocampal gyrus

92

IVW

− 0.1473 (− 0.2802, − 0.0145)

0.0678

0.0297

 Surface area of insula

92

IVW

0.3832 (0.1192, 0.6472)

0.1347

0.0044

  1. Abbreviations: COVID-19 Coronavirus disease 2019, CI Confidence interval, IVW inverse-variance weighted, nSNPs Number of single-nucleotide polymorphisms, SE Standard error. The β values were calculated in millimeters. A p value < 1.07×10−4 (Bonferroni-corrected significance threshold) was considered statistically significant. A p value < 0.05 was considered nominally significant