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Table 4 Results of the 2 sample Mendelian randomisation analysis using depression, anxiety and well-being as predictors for all participants and stratified by sex. Results represent betas per standard deviation change in genetically instrumented risk of of the exposures

From: Effects of physical activity and sedentary time on depression, anxiety and well-being: a bidirectional Mendelian randomisation study

Exposure

Outcome

Strata

Beta (95% CI)

P

 Depression

Overall physical activity

All

 − 0.25 (− 0.42; − 0.08)

4.07E − 03

Females

 − 0.45 (− 0.67; − 0.23)

6.05E − 05

Males

 − 0.08 (− 0.27; 0.11)

4.21E − 01

 Depression

Sedentary time

All

0.04 (− 0.11; 0.18)

6.33E − 01

Females

0.17 (− 0.03; 0.36)

9.32E − 02

Males

 − 0.08 (− 0.28; 0.12)

4.13E − 01

Exposure

Outcome

Strata

Beta (95% CI)

P

 Anxiety

Overall physical activity

All

0.00 (− 0.08; 0.08)

9.48E − 01

Females

0.01 (− 0.10; 0.10)

8.24E − 01

Males

 − 0.01 (-0.11; 0.10)

8.99E − 01

 Anxiety

Sedentary time

All

 − 0.02 (− 0.13; 0.08)

9.99E − 01

Females

 − 0.04 (− 0.18; 0.09)

5.34E − 01

Males

0.00 (− 0.13; 0.12)

9.46E − 01

Exposure

Outcome

Strata

Beta (95% CI)

P

 Well-being GWAS

Overall physical activity

All

0.13 (− 0.06; 0.31)

1.68E − 01

Females

0.07 (− 0.17; 0.31)

5.71E − 01

Males

0.16 (− 0.04; 0.36)

1.21E − 01

 Well-being GWAS

Sedentary time

All

0.07 (− 0.09; 0.23)

3.87E − 01

Females

0.05 (− 0.18; 0.28)

6.54E − 01

Males

0.10 (− 0.10; 0.29)

3.27E − 01

 Well-being from UKB

Overall physical activity

All

0.15 (0.05; 0.25)

4.65E − 03

Females

0.18 (0.04; 0.33)

1.33E − 02

Males

0.12 (− 0.002; 0.24)

5.40E − 02

 Well-being from UKB

Sedentary time

All

 − 0.02 (− 0.12; 0.09)

7.14E − 01

Females

 − 0.05 (− 0.19; 0.09)

4.75E − 01

Males

0.00 (− 0.12; 0.12)

9.87E − 01