Fig. 1
From: The effects of vitamin D supplementation on frailty in older adults at risk for falls
Percentage of participants with each frailty status at baseline and follow-up visits. A Pooled higher dose (PHD) vs. 200 IU/d. B Pure 1000 IU/d vs. 200 IU/d. PHD = Pooled higher doses (combined 1000 IU/d, 2000 IU/d, and 4000 IU/d). IU/d = International units per day