Bone stiffness index in men and women aged 29−32 years according to severity of depressive symptoms.

SI, bone stiffness index; K-BDI, the Korean version of the Beck Depression Inventory.
aAdjusted for age, body mass index, at risk drinking (>2 drinks/day), and regular exercise (≥1/week).
bAdjusted for age, body mass index, at risk drinking (>1 drink/day), age at menarche, and duration of breastfeeding (0, 1−11, and ≥12 months).
cDepressive symptoms were classified as normal (K-BDI <10), mild (K-BDI 10−15), and moderate to severe (K-BDI ≥16).