Table 6: The variables statistically significantly related to hospitalizations with mechanical restraints (nested multivariate logistic regression).

Variables F Pr > F R2 Change in R2
Patients with >1 hospitalization 27.18 0.0000 0.0056 -
Gender 5.90 0.0152 0.0073 0.0012
Nazionality 14.85 0.0001 0.0103 0.0030
I Psychiatric Diagnosis (ICD-9-CM) 5.71 0.0169 0.0115 0.0012
II Psychiatric Diagnosis (ICD-9-CM) 5.46 0.0195 0.0126 0.0011
Organic Comorbidity 22.71 0.0000 0.0178 0.0046
State of Admission: 153.66 0.0000 0.0481 0.0304
Length of Hospitalization (days)            240.01 0.0000 0.0933 0.0452
Medical Staff Replacement (2008) 98.66 0.0000 0.1115 0.0182
More Restricted Guidelines for Restraint Application (2011) 27.24 0.0000 0.1165 0.0050