Vitamin D supplementation alone or with calcium was not associated with reduced fracture incidence among community-dwelling adults without known vitamin D deficiency, osteoporosis, or prior fracture. Vitamin D with calcium was associated with an increase in the incidence of kidney stones.

IMPORTANCE Child maltreatment, also referred to as child abuse and neglect, can result in lifelong negative consequences. OBJECTIVE To update the evidence on interventions provided in or referable from primary care to prevent child maltreatment for the US Preventive Services Task Force.