Table 1 Results of power calculation for the main analysis (using top eQTL).

From: Rho GTPase gene expression and breast cancer risk: a Mendelian randomization analysis

Gene

Resource

Tissue

R2

F-statistic

Power (overall BC)

Power (ER+ BC)

Power (ER− BC)

RHOD

GTEx

Breast mammary

27.28

93.42

 > 99

 > 99

 > 99

RHOD

eQTLGen

Blood

0.35

107.03

 > 99

59.63

30.06

CDC42

eQTLGen

Blood

3.41

1118.52

 > 99

 > 99

 > 99

CDC42

TCGA

Breast cancer

0.31

14.97

67.57

54.56

27.19

RHOBTB1

GTEx

Breast mammary

20.76

65.24

 > 99

 > 99

 > 99

RHOBTB1

eQTLGen

Blood

1.85

582.89

 > 99

 > 99

91.20

RHOBTB2

eQTLGen

Blood

0.49

154.52

86.01

74.25

39.85

RHOU

eQTLGen

Blood

2.95

803.91

 > 99

 > 99

98.70

RHOU

TCGA

Breast cancer

0.34

16.00

70.45

57.32

28.72

RHOQ

eQTLGen

Blood

1.07

257.98

 > 99

97.16

71.24

RHOQ

TCGA

Breast cancer

0.44

21.29

82.09

69.57

36.40

RHOH

eQTLGen

Blood

0.31

97.50

67.34

54.34

27.07

RHOG

eQTLGen

Blood

0.65

206.04

93.78

85.14

49.93

RHOG

TCGA

Breast cancer

0.35

16.90

72.78

59.63

30.06

RHOC

eQTLGen

Blood

1.90

609.56

 > 99

 > 99

91.90

RHOB

eQTLGen

Blood

0.59

188.24

91.67

81.88

46.50

RHOB

TCGA

Breast cancer

0.27

12.94

61.28

48.77

24.13

RHOJ

TCGA

Breast cancer

0.54

26.11

89.01

78.13

43.04

RAC1

eQTLGen

Blood

2.03

546.86

 > 99

 > 99

93.46

RAC1

TCGA

Breast cancer

0.28

13.67

63.65

50.91

25.24

RAC2

eQTLGen

Blood

2.65

863.39

 > 99

 > 99

97.77

RAC2

TCGA

Breast cancer

0.34

16.44

71.62

58.47

29.38

RND2

TCGA

Breast cancer

0.78

38.02

97.00

90.96

57.58

  1. BC = breast cancer; R2 represents the variance explained in the expression level of the gene by the instrument; F-statistic indicates strength of the instrument used for each gene expression (a strong instrument is sometimes defined as an F-statistic > 10); and the Power represents the power to detect an odds ratio of 1.2 (or 0.80) for an association of the expression of gene expression with breast cancer at an alpha-level of 0.05, given the values in the R2 column and the number of breast cancer cases and controls.