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Table 1 The causal relationship between metabolic syndrome and ovarian dysfunction using mendelian randomization

From: Causal association between metabolic syndrome and ovarian dysfunction: a bidirectional two-sample mendelian randomization

Exposure

Outcome

N.SNPs

Methods

OR (95% CI)

P

metabolic syndrome

Primary ovarian failure

79

IVW

1.01 ( 0.71–1.43 )

0.97

   

MR-Egger

1.24 ( 0.59–2.57 )

0.57

   

Weighted Median

1.07 ( 0.63–1.82 )

0.81

   

Weighted Mode

1.32 ( 0.54–3.18 )

0.54

Waist circumference

 

299

IVW

1.66 ( 0.81–3.41 )

0.17

   

MR-Egger

1.37 ( 0.17–11.19 )

0.77

   

Weighted Median

1.11 ( 0.37–3.37 )

0.85

   

Weighted Mode

0.32 ( 0.04–2.68 )

0.29

Body mass index (BMI)

 

432

IVW

1.25 ( 0.72–2.14 )

0.43

   

MR-Egger

0.67 ( 0.15–3 )

0.60

   

Weighted Median

1.45 ( 0.6–3.53 )

0.41

   

Weighted Mode

1.13 ( 0.2–6.34 )

0.89

insulin resistance

 

18

IVW

0.26 ( 0.08–0.89 )

0.03

   

MR-Egger

2.83 ( 0.14–58.73 )

0.51

   

Weighted Median

0.22 ( 0.04–1.26 )

0.09

   

Weighted Mode

0.06 ( 0–1.39 )

0.10

fasting blood glucose (FBG)

 

63

IVW

0.5 ( 0.17–1.54 )

0.23

   

MR-Egger

0.48 ( 0.07–3.56 )

0.48

   

Weighted Median

0.48 ( 0.1–2.46 )

0.38

   

Weighted Mode

0.42 ( 0.09–2.1 )

0.3

HDL cholesterol

 

86

IVW

1.33 ( 0.86–2.07 )

0.2

   

MR-Egger

1.52 ( 0.74–3.12 )

0.25

   

Weighted Median

1.87 ( 0.92–3.79 )

0.08

   

Weighted Mode

1.55 ( 0.86–2.8 )

0.15

Triglycerides

 

54

IVW

1.14 ( 0.62–2.07 )

0.67

   

MR-Egger

0.93 ( 0.35–2.5 )

0.89

   

Weighted Median

0.74 ( 0.3–1.79 )

0.5

   

Weighted Mode

0.83 ( 0.38–1.8 )

0.64

metabolic syndrome

Ovarian dysfunction

81

IVW

1.11 ( 0.92–1.34 )

0.29

   

MR-Egger

0.82 ( 0.56–1.21 )

0.33

   

Weighted Median

1.06 ( 0.81–1.4 )

0.68

   

Weighted Mode

1.03 ( 0.71–1.49 )

0.88

Waist circumference

 

299

IVW

2.14 ( 1.45–3.15 )

< 0.001

   

MR-Egger

4.54 ( 1.48–13.9 )

0.01

   

Weighted Median

1.91 ( 1.06–3.46 )

0.03

   

Weighted Mode

0.76 ( 0.16–3.67 )

0.74

Body mass index (BMI)

 

432

IVW

2.1 ( 1.56–2.83 )

< 0.001

   

MR-Egger

3.06 ( 1.34–6.99 )

0.01

   

Weighted Median

2.35 ( 1.48–3.71 )

< 0.001

   

Weighted Mode

5.34 ( 1.63–17.51 )

0.01

insulin resistance

 

18

IVW

1.16 ( 0.61–2.23 )

0.65

   

MR-Egger

3.36 ( 0.67–16.71 )

0.16

   

Weighted Median

1.3 ( 0.54–3.1 )

0.56

   

Weighted Mode

1.16 ( 0.3–4.44 )

0.83

fasting blood glucose (FBG)

 

63

IVW

1.74 ( 0.97–3.13 )

0.06

   

MR-Egger

1.87 ( 0.65–5.35 )

0.25

   

Weighted Median

1.19 ( 0.45–3.12 )

0.72

   

Weighted Mode

0.83 ( 0.28–2.46 )

0.74

HDL cholesterol

 

86

IVW

1.2 ( 0.96–1.52 )

0.12

   

MR-Egger

1.5 ( 1.03–2.19 )

0.04

   

Weighted Median

1.53 ( 1.03–2.27 )

0.04

   

Weighted Mode

1.46 ( 1.03–2.07 )

0.04

Triglycerides

 

54

IVW

1.01 ( 0.75–1.37 )

0.94

   

MR-Egger

0.74 ( 0.45–1.21 )

0.24

   

Weighted Median

0.89 ( 0.57–1.4 )

0.62

   

Weighted Mode

0.86 ( 0.57–1.29 )

0.47