Association between education* and mediator | Association between mediator and BMI† | Mediated effect | Proportion mediated | |||||
---|---|---|---|---|---|---|---|---|
a | 95% CI | b | 95% CI | ab | 95% CI | % | ||
LTPA# | M | 0.69 | (0.55, 0.83) | −0.10 | (−0.12, -0.09) | −0.07 | (−0.09, -0.05) | 8% |
W | 0.70 | (0.59, 0.80) | −0.15 | (−0.17, -0.13) | −0.10 | (−0.12, -0.09) | 10% | |
Alcohol | M | 0.35 | (−0.58, 1.31) | 0.00 | (0.00, 0.01) | |||
W | 3.50 | (3.11, 3.89) | −0.03 | (−0.03, -0.02) | −0.10 | (−0.13, -0.08) | 10% | |
Diet soft drink | M | −0.23 | (−0.37, -0.09) | 0.16 | (0.13, 0.18) | −0.04 | (−0.06, -0.01) | 4% |
W | −0.41 | (−0.52, -0.30) | 0.20 | (0.18, 0.23) | −0.08 | (−0.11, -0.06) | 8% | |
Soft drink | M | −0.68 | (−0.84, -0.52) | 0.06 | (0.04, 0.08) | −0.04 | (−0.06, -0.03) | 5% |
W | −0.33 | (−0.42, -0.25) | 0.05 | (0.02, 0.08) | −0.02 | (−0.03, -0.01) | 2% | |
Healthy snacks | M | 0.14 | (0.13, 0.16) | −0.01 | (−0.15, 0.13) | |||
W | 0.11 | (0.10, 0.12) | −0.27 | (−0.46, -0.09) | −0.03 | (−0.05, -0.01) | 3% | |
Healthy savoury | M | 1.90 | (1.54, 2.25) | −0.02 | (−0.03, -0.01) | −0.04 | (−0.06, -0.03) | 4% |
W | 2.42 | (2.14, 2.71) | −0.01 | (−0.02, 0.00) | −0.03 | (−0.05, -0.01) | 3% | |
Fruit and vegetables | M | 0.07 | (0.06, 0.09) | −0.12 | (−0.27, 0.03) | |||
W | 0.09 | (0.07, 0.10) | 0.12 | (−0.02, 0.25) | ||||
Sweet snacks | M | −0.68 | (−1.08, -0.29) | −0.03 | (−0.03, -0.02) | 0.02 | (0.01, 0.03) | −2% |
W | −1.16 | (−1.46, -0.86) | −0.01 | (−0.02, 0.00) | 0.01 | (0.00, 0.02) | −1% | |
Unhealthy savoury | M | −2.66 | (−3.04, -2.27) | 0.03 | (0.02, 0.04) | −0.07 | (−0.10, -0.05) | 8% |
W | −2.26 | (−2.5, -2.02) | 0.06 | (0.05, 0.07) | −0.14 | (−0.16, -0.11) | 13% | |
Total mediated effect | M | −0.24 | (−0.29, -0.20) | 27% | ||||
W | −0.49 | (−0.54, -0.44) | 48% |