Can vitamin D supplementation improve grip strength in elderly nursing home residents? A double-blinded controlled trial

Figures & data

Table 1. Baseline characteristics of the 60 study participants

	Control group (n=28)	Vitamin D group (n=32)	p
Age (years)^a	82.0±7.6	82.8±7.0	0.7
Women, number (%)	20 (71%)	19 (59%)	0.3
Body mass index (kg m^-2)^a	22.9±4.4	23.0±5.2	1.0
Vitamin D supplementation (%)^b	14 (50%)	13 (41%)	0.4
Calcium intake from cheese and milk^a,c	447.3±128.1	490.0±191.0	0.5
Mean serum 25-hydroxyvitamin-D3 (nmol l^-1)^a,d	49.9±34.8	49.3±26.5	0.9
Serum 25-hydroxyvitamin D3<30 nmol l^-1 (%)	10 (37%)	9 (29%)	0.5
Grip strength (kg)^a	16.0±6.1	16.0±8.3	0.6

^a Mean values±SD.

^b Usually in the form of a multivitamin supplement.

^c Cheese and milk constitute two-thirds of the total calcium intake 18.

^d n=58 (27 + 32).

BohannonRW. Hand-grip dynamometry provides a valid indication of upper extremity strength impairment in home care patientsJ Hand Ther19981125860

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