Table 4.
Adjusted Physical Performance Measures [Mean (SE)] by Vitamin D Status in Women: The InCHIANTI Study
| Serum 25OHD (nmol/L) |
||||||
|---|---|---|---|---|---|---|
| Physical Performance Measure | < 25 | 25 to < 50 | ≥50 | p Value < 25 vs ≥25 | p Value < 50 vs ≥50 | p for Trend |
| SPPB score | ||||||
| N | 155 | 245 | 135 | |||
| Age adjusted | 8.58 (0.22) | 9.49 (0.17) | 9.45 (0.23) | .0005 | .31 | .03 |
| Model 1 | 9.12 (0.20) | 9.85 (0.15) | 9.68 (0.21) | .005 | .76 | .18 |
| Model 2 | 9.29 (0.19) | 9.85 (0.14) | 9.59 (0.20) | .03 | .74 | .58 |
| Handgrip strength, kg | ||||||
| N | 110 | 225 | 128 | |||
| Age adjusted | 20.65 (0.66) | 21.96 (0.45) | 21.88 (0.61) | .09 | .66 | .33 |
| Model 1 | 20.46 (0.61) | 21.53 (0.42) | 22.94 (0.58) | .03 | .01 | .005 |
| Model 2 | 20.58 (0.60) | 21.52 (0.41) | 22.83 (0.57) | .06 | .02 | .009 |
Notes: Model 1 was adjusted for sociodemographic variables (age, site, education), smoking status, physical activity, body mass index, total energy intake, and season. Model 2 was adjusted for variables in Model 1 plus cognition, congestive heart failure, chronic obstructive pulmonary disease, cerebrovascular disease, and levels of creatinine, hemoglobin, and albumin.
SE = standard error; SPPB = short physical performance battery.