Table 3 Characteristics of vitamin D supplement users according to the dosage
N = 86 | 1–400 IU/day (n = 27) | 401–800 IU/day (n = 38) | 801+ IU/day (n = 21) | p value | |
|---|---|---|---|---|---|
Frailty Index | 0.43 ± 0.11 | 0.45 ± 0.11 | 0.40 ± 0.09 | 0.43 ± 0.12 | 0.59 |
Frailty (FI > =0.25) | 84 (97.7%) | 25 (92.6%) | 38 (100.0%) | 21 (100.0%) | 0.11 |
25 (OH) D (ng/mL) | 26.6 ± 9.3 | 22.9 ± 8.6 | 26.8 ± 8.4 | 30.9 ± 10.2 | 0.003 |
Vitamin D deficiency | 19 (22.1%) | 9 (33.3%) | 7 (18.4%) | 3 (14.3%) | 0.10 |
Age | 79.0 ± 11.7 | 79.7 ± 9.5 | 80.9 ± 11.1 | 74.7 ± 14.6 | 0.17 |
Body mass index | 25.1 ± 6.0 | 23.9 ± 4.7 | 24.7 ± 5.8 | 27.5 ± 7.5 | 0.05 |
Education (year) | 13.0 ± 2.4 | 13.1 ± 1.8 | 12.7 ± 2.7 | 13.4 ± 2.7 | 0.72 |
Ethnicity | |||||
White | 41 (47.7%) | 13 (48.1%) | 22 (59.5%) | 6 (28.6%) | 0.28 |
Asian/PI | 41 (47.7%) | 13 (48.1%) | 14 (37.8%) | 14 (66.7%) | |
Others | 3 (3.5%) | 1 (3.7%) | 1 (2.7%) | 1 (4.8%) | |
Reason for admission | |||||
Rehabilitation | 26 (30.2%) | 13 (48.1%) | 8 (21.1%) | 5 (23.8%) | 0.11 |
Skilled-nursing care | 7 (8.1%) | 0 (0.0%) | 5 (13.2%) | 2 (9.5%) | |
Intermediate care | 4 (4.7%) | 2 (7.4%) | 2 (5.3%) | 0 (0.0%) | |
Respite | 49 (57.0%) | 12 (44.4%) | 23 (60.5%) | 14 (66.7%) | |
Place veterans came from | |||||
Home | 54 (62.8%) | 12 (44.4%) | 26 (68.4%) | 16 (76.2%) | 0.06 |
Acute care | 28 (32.6%) | 14 (51.9%) | 11 (28.9%) | 3 (14.3%) | |
other nursing home | 4 (4.7%) | 1 (3.7%) | 1 (2.6%) | 2 (9.5%) | |
Smoking | |||||
Never | 27 (31.4%) | 6 (22.2%) | 14 (36.8%) | 7 (33.3%) | 0.75 |
Past | 49 (57.0%) | 18 (66.7%) | 20 (52.6%) | 11 (57.0%) | |
Current | 10 (11.6%) | 3 (11.1%) | 4 (10.5%) | 3 (14.3%) | |
Alcohol | |||||
Never | 39 (45.3%) | 11 (40.7%) | 18 (47.4%) | 10 (47.6%) | 0.82 |
Past | 30 (34.9%) | 11 (40.7%) | 11 (28.9%) | 8 (38.1%) | |
Current | 17 (19.8%) | 5 (18.5%) | 9 (23.7%) | 3 (14.3%) | |