Associations between stress instruments and cardiac autonomic nervous system measures (N = 2,624).

Multivariate associations were explored using mixed models to include cardiac autonomic nervous system measures from both the supine and sitting up position (multilevel regression analyses).* To model 1, sex and age of the child at measurement were added as covariates.† To model 2, additionally added covariates are: maternal age, ethnicity, pre-pregnancy BMI, educational level, primiparity, hypertension, smoking, alcohol consumption, gestational age and birth weight.\vskip -2\scale 60% \raster="rg1" Only analyzed in multiparous women (N = 1,147).**p