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Table 3 Probability of Type I error when sample overlapping rate is 100%

From: Exploring the link between walking and lung cancer risk: a two-stage Mendelian randomization analysis

Exposure

Outcome

OR = 0.9 or 1.1

OR = 0.3 or 3.0

Number of days/week walked 10 + minutes

Lung cancer

0.05

0.05

Usual walking pace

Lung cancer

0.05

0.05

Duration of walks

Lung cancer

0.05

0.05

Time spent watching TV

Lung cancer

0.05

0.08

Time spent watching TV

Usual walking pace

0.09

0.41

Fed-up feelings

Lung cancer

0.05

0.06

Fed-up feelings

Number of days/week walked 10 + minutes

0.18

0.82

Number of days/week walked 10 + minutes

Fed-up feelings

0.05

0.07

Usual walking pace

Time spent watching TV

0.08

0.37