Factors connected with UMDs
Factors connected with UMDs are displayed in Table 4. The age (p<0.001), sex (p<0.001), day of admission (p=0.011), type of admission (p<0.001), educational level (p<0.001), admitting physician experience (p=0.001), 2 or more chronic diseases at admission (p<0.001), 5 or more drugs on the BMPH (p<0.001) were statistically related with UMDs in the univariate analysis. By multivariable logistic regression model, 2 variables were found to be independently associated with UMDs at hospital admission, 2 or more chronic diseases at admission (OR 1.376; 95% CI 0.327-5.791) and 5 or more drugs on the BMPH (OR 3.057; 95% CI 1.723-6.132). There was no significant association between presenting UMDs and other factors, such as living status, specialty and medical health care.