From: Vitamin D and skeletal health in autoimmune bullous skin diseases: a case control study
PV controls (n = 35)* | PV patients (n = 35)* | P value | BP controls (n = 32)* | BP patients (n = 32)* | P value | |
---|---|---|---|---|---|---|
Age (years) | 53.7 ± 14.9 (27 – 79) | 55.5 ± 14.6 (27 – 79) | 0.608 | 76.7 ± 9.2 (59 – 90) | 79.0 ± 9.9 (48 – 90) | 0.324 |
Gender (females) | 19 (54.3) | 19 (54.3) | 1.000 | 17 (53.1) | 17 (53.1) | 1.000 |
BMI (kg/m 2 ) | 26.0 ± 4.3 (19.9 –37.0) | 25.1 ± 5.0 (18.4 – 39.0) | 0.661 | 27.9 ± 4.6 (20.3 – 36.0) | 26.7 ± 4.0 (17.6 – 36.7) | 0.284 |
N. of current smokers (%) | 10 (28.6) | 7 (20.0) | 0.403 | 5 (15.6) | 3 (9.4) | 0.708 |
N. of subjects with history of clinical fractures (%) | 4 (11.4) | 1 (2.9) | 0.356 | 5 (15.6) | 3 (9.4) | 0.708 |
Sun exposure score | 13.7 ± 6.9 (4 – 28) | 14.1 ± 5.8 (7 – 32) | 0.791 | 9.9 ± 7.4 (2 – 26) | 9.9 ± 7.3 (2 – 33) | 0.851 |
Calcium (mg/dL) | 9.2 ± 0.3 (8.7 – 9.7) | 9.1 ± 0.4 (8.2 – 10.0) | 0.513 | 9.3 ± 0.3 (8.6 – 10.0) | 9.0 ± 0.3 (8.3 – 9.8) | 0.001 |
25(OH) Vitamin D (ng/mL) | 22.2 ± 11.1 (6.4 – 53.0) | 13.9 ± 8.3 (4.0 – 34.8) | 0.001 | 22.4 ± 14.9 (4.0 – 79.0) | 9.5 ± 7.7 (4.0 – 31.8) | 0.000 |
N. of subjects with severe hypovitaminosis D (%) | 8 (22.9) | 17 (48.6) | 0.025 | 10 (31.3) | 24 (75.0) | 0.000 |
Alkaline phosphatase (U/L) | 72.7 ± 19.1 (38 – 115) | 60.4 ± 19.5 (35 – 128) | 0.013 | 71.0 ± 17.2 (39 – 105) | 64.9 ± 18.2 (34 – 105) | 0.173 |
LS BMD (Z-score) | 0.21 ± 1.42 (−2.0 – 3.7) | 0.35 ± 1.67 (−3.2 – 3.3) | 0.717 | −0.03 ± 1.47 (−2.6 – 3.8) | 0.06 ± 1.65 (−2.9 – 3.1) | 0.831 |
FN BMD (Z-score) | −0.14 ± 1.04 (−1.6 – 2.7) | 0.00 ± 1.31 (−2.9 – 3.0) | 0.614 | −0.26 ± 1.0 (−2.0 – 2.2) | −0.20 ± 0.83 (−1.7 – 1.8) | 0.766 |
N. of subjects with T-score < −2.5 at any site (%) | 4 (11.4) | 8 (22.9) | 0.342 | 9 (28.1) | 12 (37.5) | 0.424 |
N. of subjects with vertebral fractures (%) | 10 (28.6) | 20 (57.1) | 0.029 | 11 (34.4) | 20 (62.5) | 0.024 |