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Table 4 Heterogeneity and pleiotropy analysis

From: Causal pathways linking polycystic ovary syndrome to distinct breast cancer subtypes through mediator factors: a multivariable mendelian randomization analysis

Exposure

Outcome

Heterogenity

Pleiotropy

Method

Cochran’s Q

p -Value

Egger-Intercept

p -Value

PCOS

Bioavailable testosterone levels

IVW

52.663

2.07E-07

-0.008

0.355

PCOS

Total testosterone levels

IVW

111.276

1.02E-18

-0.005

0.502

PCOS

AMH

IVW

6.169

1.87E-01

0.056

0.427

PCOS

Estrogn Receptor

IVW

5.503

9.04E-01

-0.039

0.404

PCOS

Female Infertility

IVW

18.558

1.74E-02

0.044

0.307

PCOS

Infertility (associated with anovulation)

IVW

53.374

9.13E-09

0.191

0.224

PCOS

Age at Menarche

IVW

14.426

4.41E-02

0.004

0.834

PCOS

Age at menopause

IVW

75.338

1.17E-11

-0.055

0.667

PCOS

IGF-1

IVW

41.795

1.76E-05

-0.013

0.114

PCOS

HOMA-IR

IVW

11.825

3.73E-02

0.006

0.783

PCOS

Triglycerides

IVW

5.089

4.05E-01

0.000

0.992

PCOS

Type 2 diabetes

IVW

15.183

8.60E-02

-0.009

0.692

PCOS

BC

IVW

48.100

3.41E-08

0.003

0.859

PCOS

ER + BC

IVW

16.200

9.40E-02

0.000

0.989

PCOS

ER- BC

IVW

3.220

9.76E-01

0.020

0.349

ER

BC

IVW

22.652

9.18E-02

-0.018

0.086

ER + BC

MR Egger

20.633

1.11E-01

-0.034

0.018

ER- BC

IVW

15.813

3.95E-01

-0.006

0.712

AMH

BC

IVW

52.702

2.12E-11

-0.035

0.482

ER + BC

IVW

38.885

1.84E-08

-0.033

0.532

ER- BC

IVW

20.650

1.24E-04

-0.026

0.669

Age at Menarche

BC

IVW

210.967

8.36E-17

0.009

0.128

ER + BC

IVW

140.193

1.47E-08

0.012

0.065

ER- BC

IVW

138.685

2.31E-08

0.000

0.979

Age at menopause

BC

IVW

116.165

4.11E-09

-0.005

0.243

ER + BC

IVW

99.467

2.45E-08

-0.002

0.696

ER- BC

MR Egger

61.421

1.92E-03

-0.015

0.024

IGF-1

BC

IVW

1764.000

1.18E-122

0.000

0.989

ER + BC

IVW

1428.000

1.46E-75

0.000

0.838

ER- BC

IVW

988.000

3.95E-25

-0.001

0.679

Triglycerides

BC

IVW

220.583

5.77E-23

0.005

0.127

ER + BC

IVW

190.997

4.71E-18

0.005

0.175

ER- BC

IVW

87.466

1.12E-03

0.002

0.557

  1. The Cochran Q statistic was computed to analyze the degree of heterogeneity which was considered significant when p < 0.05, p and the MR-Egger regression was utilized to analyze the degree of pleiotropy which was considered significant when p < 0.05