Table 5.
Mendelian randomization estimates for the association of SHBG level with risk of lung or colorectal cancer among women in HUNT.
| Cases | SHBGa | ||||
|---|---|---|---|---|---|
| HRb (95% CI) | p-value | Q-statistic | p of Q-statistic | ||
| Lung cancer | 468 | 1.44 (0.71–2.90) | 0.31 | 184 | 0.31 |
| Lung adenocarcinoma | 174 | 1.04 (0.34–3.21) | 0.95 | 177 | 0.44 |
| Lung non-adenocarcinoma | 294 | 1.73 (0.70–4.25) | 0.23 | 190 | 0.20 |
| Colorectal cancer | 971 | 1.14 (0.70–1.84) | 0.60 | 179 | 0.40 |
| Colon cancer | 723 | 1.26 (0.73–2.19) | 0.41 | 175 | 0.49 |
| Rectal cancer | 248 | 0.87 (0.34–2.27) | 0.78 | 181 | 0.37 |
CI confidence interval, HR hazard ratio, IVW inverse-variance weighted, MR Mendelian randomization, SD standard deviation, SHBG sex hormone binding globulin.
aTwo-sample MR was performed using summary statistics from Ruth23 for SHBG level and from HUNT for lung or colorectal cancer.
bAdjusted for body mass index, per one-SD increase in genetically predicted SHBG level, based on the IVW method.