Figure 2.

Counts of incident nontraumatic fracture at each near-annual visit. All nontraumatic fractures excluded those at the face, toes, or digits. Incident nontraumatic fractures were self-reported fractures not related to a fall from a height above the ground greater than 6 inches, a motor vehicle accident, moving fast (like running, bicycling or skating), playing sports, or something heavy fell or struck. Between visits 7 and 13, self-reported fractures were further confirmed by medical records review: 74% of all (109 of 147) nontraumatic fractures were confirmed in medical records.