Table 3.
MR estimates of BMI (SD, 1 SD = 4.5 kg/m2) on cardiovascular risk factors and CHD
Exposure: BMI (n = 322,154) | Effect estimate | 95% CI | p value |
---|---|---|---|
CHD (n = 60,801 case and 123,504 control participants)a | |||
IVW | 1.45 | 1.27, 1.66 | < 0.001 |
Weighted-median | 1.44 | 1.24, 1.67 | < 0.001 |
MR-Egger regression | |||
Slope | 1.55 | 1.26, 1.91 | < 0.001 |
Intercept (directional pleiotropy) | 1.00 | 0.99, 1.00 | 0.50 |
Type 2 diabetes mellitus (n = 34,840 case and 114,981 control participants)a | |||
IVW | 1.96 | 1.35, 2.83 | < 0.001 |
Weighted-median | 2.63 | 2.16, 3.21 | < 0.001 |
MR-Egger regression | |||
Slope | 3.42 | 2.63, 4.46 | < 0.001 |
Intercept (directional pleiotropy) | 0.98 | 0.98, 0.99 | < 0.001 |
Fasting glucose, mmol/l (n = 46,186)b | |||
IVW | 0.07 | 0.03, 0.11 | < 0.001 |
Weighted-median | 0.08 | 0.05, 0.12 | < 0.001 |
MR-Egger regression | |||
Slope | 0.09 | 0.036, 0.15 | < 0.001 |
Intercept | −0.0007 | −0.002, 0.001 | 0.37 |
HbA1c, % (n = 46,368)b | |||
IVW | 0.05 | 0.01, 0.08 | 0.005 |
Weighted-median | 0.09 | 0.04, 0.14 | < 0.001 |
MR-Egger regression | |||
Slope | 0.09 | 0.008, 0.16 | 0.03 |
Intercept | −0.001 | −0.003, 0.001 | 0.31 |
Fasting insulin, log-pmol/l (n = 38,238)b | |||
IVW | 0.18 | 0.14, 0.22 | < 0.001 |
Weighted-median | 0.18 | 0.12, 0.24 | < 0.001 |
MR-Egger regression | |||
Slope | 0.16 | 0.07, 0.25 | < 0.001 |
Intercept | 0.0007 | −0.002, 0.003 | 0.60 |
LDL-cholesterol, SD (1 SD = 1.0 mmol/l) (n = 188,577)b | |||
IVW | −0.05 | −0.19, 0.09 | 0.50 |
Weighted-median | −0.01 | −0.08, 0.05 | 0.66 |
MR-Egger regression | |||
Slope | −0.10 | −0.184, − 0.02 | 0.02 |
Intercept | 0.0016 | −0.001, 0.004 | 0.19 |
HDL-cholesterol, SD (1 SD = 0.40 mmol/l) (n = 188,577)b | |||
IVW | −0.23 | −0.32, −0.15 | < 0.001 |
Weighted-median | −0.21 | −0.27, −0.16 | < 0.001 |
MR-Egger regression | |||
Slope | −0.23 | −0.307, −0.15 | < 0.001 |
Intercept | −0.0001 | −0.002, 0.002 | 0.90 |
Triacylglycerol, SD (1 SD = 1.024 mmol/l) (n = 188,577)b | |||
IVW | 0.20 | 0.14, 0.26 | < 0.001 |
Weighted-median | 0.21 | 0.15, 0.27 | < 0.001 |
MR-Egger regression | |||
Slope | 0.17 | 0.09, 0.24 | < 0.001 |
Intercept | 0.001 | −0.001, 0.003 | 0.37 |
aBinary outcome—effect estimate is the OR for a 1 SD increase in BMI
bContinuously measured outcome—effect estimate is the difference in mean in the unit provided in column 1 for a 1 SD increase in BMI