Table 2.
Comparison of serum levels of 25-hydroxyvitamin D in our study group with those published for normal subjects and those with somatic pain
| n | 25-hydroxy vitamin D (ng/mL) | Percent deficient | Reference |
|---|---|---|---|
| 153 | 19.8 ± 11.1 | 54% | This study |
| Clinically normal subjects | |||
| 493 | *34.2 ± 13.8 | NR | 19 |
| 212 | *23.3 ± 8.4 | 40% | 20 (Winter) |
| 99 | *26.8 ± 10.3 | 20% | 20 (Summer) |
| 165 | *30 ± 10 | 30% | 21 (Winter) |
| 142 | *35 ± 10 | 12% | 21 (Summer) |
| 202 | *33.1 ± 28.4 | 36% | 22 |
| 13,369 | *24 ± 1 | 36% | 23 |
| Patients with pain | |||
| 128 | *28.6 ± 13.2 | NR | 19 |
| 150 | *12.1 ± 5.8 | 93% | 24 |
| 267 | *28.7 ± 11.6 | 26% | 25 |
| 276 | 23.8 ± 29.1 | 63% | 22 |
| 25 | 20.6 ± 6.8 | NR | 26 |
| 572 | 18.8 ± 1.0 | 58% | 27 |
| 263 | *23.9 ± 11.8 | 26%‡ | 28 |
Notes: Data are presented as the mean ± standard deviation. Vitamin D deficiency was defined as a serum concentration of 25-hydroxyvitamin D < 20 ng/mL except for ‡which indicates ≤ 15 ng/mL.
*
P < 0.05, t-test.
Abbreviation: NR, not reported.