Odds ratio for depression (HADD> = 8) per sex-specific SD of body mass index.

Note: Body mass index was pre-adjusted for age, sex and HUNT wave and standardised by the sex-specific residual standard deviation. All models were adjusted for parental age and date of birth and full adjustment included additional adjustment for parental education. Models for combined parents were additionally adjusted for parental sex and used robust standard errors clustered by offspring identity. Maternal and paternal odds ratios were compared by adding an interaction between parental sex and the exposure to the combined model and reporting the p-value from a Z-test of its coefficient. There were 2,640 cases of depression among 21,977 mothers and 2,159 cases of depression among 17,260 fathers.
Odds ratio for depression (HADD> = 8) per sex-specific SD of body mass index.