Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 2 Multivariate linear regression analyses for association between length of stay and vitamin D deficiency after adjusting for possible confounders
Variables | Mean difference (95 % CI) | Significance (P) |
|---|---|---|
Gender (male) | 0.01 (−0.1 to 0.3) | 0.37 |
Age | 0.09 (−1.5 to 3.28) | 0.52 |
Primary diagnosis (hip arthroplasty vs. knee arthroplasty) | 0.48 (−2.83 to 4.01) | 0.78 |
Osteoporosis | 0.06 (−4.07 to 3.94) | 0.97 |
Hypertension | 0.008 (−0-03 to 0.09) | 0.81 |
Cardiovascular disease | 0.5 (−1.4 to 2.4) | 0.63 |
Thyreotic abnormality | 0.99 (−2.6 to 2.59) | 0.47 |
Pulmonary disease | 0.39 (−5.79 to 5.0) | 0.87 |
Renal failure | 0.07 (−4.08 to 3.95) | 0.74 |
Infectious diseases | 0.49 (−2.25 to 3.25) | 0.72 |
Diabetes | 3.76 (−2.1 to 9.68) | 0.2 |
Obesity (BMI >30 kg/m2) | 1.26 (−1.42 to 3.95) | 0.34 |
Vitamin D deficiency | 4.3 (0.5 to 6.78) | 0.002 |