Vitamin D status of all patients with spinal cord injuries
| Status | Number | Percentage | 95% Confidence interval |
|---|---|---|---|
| Vitamin D deficiency | 27 | 32 | 21.90, 41.70 |
| Vitamin D insufficiency | 25 | 29 | 19.71, 39.09 |
| Normal | 33 | 39 | 28.44, 49.16 |
Factors associated with abnormal vitamin D levels in patients with spinal cord injury by logistic regression analysis
| Factors | Crude odds ratio (95% confidence interval) |
|---|---|
| Male sex | 0.73 (0.26, 2.06) |
| Age >48 years | 0.63 (0.26, 1.52) |
| Body mass index, kg/m2 | |
| <18 | 3.89 (0.75, 20.3) |
| ≥23.5 | 1.51 (0.59, 3.86) |
| Causes | |
| Accident | 1.94 (0.65, 5.18) |
| Infection | 1.99 (0.44, 8.92) |
| Tumor | 2.96 (0.60, 14.7) |
| Level of SCI | |
| Cervical | 3.60 (0.29, 44.8) |
| Thoracic | 4.44 (0.36, 55.6) |
| Lumbar | 2.17 (0.17, 27.1) |
| American Spinal Cord Injury Association classification | |
| A | 2.13 (0.64, 7.16) |
| B | 1.14 (0.34, 3.87) |
| C | 1.02 (0.29, 5.52) |
| Duration of SCI (years) | |
| <1 | 0.38 (0.06, 2.29) |
| 1–5 | 0.39 (0.07, 2.15) |
| 6–10 | 0.52 (0.08, 3.36) |
| Activities: mostly indoor | 0.64 (0.23, 1.78) |
| Sunlight exposure <30 min/day | 2.16 (0.87, 5.34) |
| Sunlight exposure <2 times/wk | 2.97 (0.98, 9.00) Bold highlighting indicates significant association by univariate logistic regression |
| Sunscreen use | 1.50 (0.51, 4.44) |
| Fish oil (sometimes or never) | 1.50 (0.17, 6.67) |
| Cooked or boiled mushroom (sometimes or never) | 0.22 (0.07, 0.72) Bold highlighting indicates significant association by univariate logistic regression |
| Milk (sometimes or never) | 1.26 (0.52, 3.03) |
| Yogurt (sometimes or never) | 0.42 (0.08, 2.13) |
Vitamin D related factors of all patients with spinal cord injuries
| Factors | Number (n) | Percentage |
|---|---|---|
| Daily activities | ||
| Mostly outdoor | 19 | 22 |
| Functional status | ||
| Unable to stand | 31 | 37 |
| Able to stand but unable to walk | 21 | 25 |
| Walkable | 33 | 39 |
| Exposure to sunlight | ||
| ≥30 min/day | 47 | 55 |
| Frequency of sunlight exposure | ||
| ≥2 times/week | 62 | 73 |
| History of sunscreen use | 19 | 22 |
| Area of sunscreen use | ||
| Face only | 6 | 32 |
| Face and body | 13 | 68 |
| SPF of sunscreen | ||
| >50 | 1 | 5 |
| 30–50 | 1 | 5 |
| <30 | 2 | 11 |
| Do not know | 15 | 79 |
| Dietary history | ||
| Fish oil 1 tablespoon/day | ||
| Regularly | 4 | 5 |
| Frequently | 1 | 1 |
| Sometimes | 6 | 7 |
| Never | 74 | 87 |
| Salmon | ||
| Regularly | 0 | 0 |
| Frequently | 1 | 1 |
| Sometimes | 4 | 5 |
| Never | 80 | 94 |
| Canned fish | ||
| Regularly | 0 | 0 |
| Frequently | 9 | 11 |
| Sometimes | 40 | 47 |
| Never | 36 | 42 |
| Liver/meat | ||
| Regularly | 5 | 6 |
| Frequently | 14 | 17 |
| Sometimes | 36 | 42 |
| Never | 30 | 35 |
| One egg | ||
| Regularly | 24 | 28 |
| Frequently | 49 | 58 |
| Sometimes | 8 | 9 |
| Never | 4 | 5 |
| Foods containing cooked or boiled mushrooms | ||
| Regularly | 4 | 5 |
| Frequently | 20 | 24 |
| Sometimes | 44 | 52 |
| Never | 17 | 20 |
| Milk/soymilk | ||
| Regularly | 35 | 41 |
| Frequently | 11 | 13 |
| Sometimes | 23 | 27 |
| Never | 16 | 19 |
| Yogurt one cup | ||
| Regularly | 2 | 2 |
| Frequently | 7 | 8 |
| Sometimes | 18 | 21 |
| Never | 58 | 68 |
| Other fish | ||
| Regularly | 39 | 46 |
| Frequently | 9 | 11 |
| Sometimes | 24 | 28 |
| Never | 13 | 15 |
Baseline characteristics of all patients with spinal cord injuries
| Factors | Number (n) | Percentage |
|---|---|---|
| Male sex | 64 | 75 |
| Age group (years) | ||
| 18–38 | 24 | 28 |
| 39–59 | 37 | 44 |
| 60–80 | 24 | 28 |
| Body mass index, kg/m2 | ||
| <18.5 | 11 | 13 |
| 18.5–23.4 | 41 | 48 |
| >23.5 | 33 | 39 |
| Causes of spinal cord injuries | ||
| Accident | 44 | 52 |
| Infection | 11 | 13 |
| Tumor | 11 | 13 |
| Degenerative disease | 19 | 22 |
| Characters of weakness | ||
| Quadriplegia | 30 | 35 |
| Paraplegia | 55 | 65 |
| Level of weakness | ||
| Cervical | 28 | 33 |
| Thoracic | 29 | 34 |
| Lumbar | 25 | 29 |
| Sacral | 3 | 4 |
| American Spinal Cord Injury Association (ASIA) classification | ||
| A | 19 | 22 |
| B | 15 | 18 |
| C | 14 | 17 |
| D | 37 | 44 |
| Duration of weakness (years) | ||
| <1 | 21 | 25 |
| 1–5 | 38 | 45 |
| 6–10 | 17 | 20 |
| >10 | 9 | 11 |