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Table 3 Univariable and multivariable linear regression analysis for drug-to-drug interactions in older patients discharged from hospital, N = 99

From: Potential drug-to-drug interactions: a cross-sectional study among older patients discharged from hospital to home care

Variables

Univariable

Multivariable

Coefficient B

95% CI

p value

Standardized β

Coefficient B

95% CI

P value

Standardized β

Gender

 Male

Ref

       

 Female

0.020

− 0.941 to 0.980

0.968

0.004

    

Age, year

 70–84

Ref

   

Ref

   

 85–95

− 1.244

− 2.161 to − 0.328

0.008

− 0.264

− 1.104

− 1.821 to − 0.387

0.003

− 0.234

Living situation

 Living alone

Ref

   

Ref

   

 Living with someone

2.390

1.480 to 3.300

< 0.001

0.468

1.236

0.377 to 2.095

0.005

0.242

Housing situation

 Sheltered housing

Ref

   

Ref

   

 Own home

1.120

0.094 to 2.146

0.033

0.215

0.129

− 0.693 to 0.951

0.756

0.025

Distance from the hospital

 < ½ h

Ref

       

 > ½ h

− 0.541

− 1.483 to 0.402

0.258

− 0.115

    

Type of hospitalization

 Urgent

Ref

       

 Elective

0.650

− 0.629 to 1.928

0.316

0.102

    

Readmission

 Yes

Ref

       

 No

0.438

− 0.647 to 1.524

0.425

0.081

    

Medical department facility

 Geriatric

Ref

       

 Non-geriatric

0.442

− 0.566 to 1.449

0.386

0.088

    

Hospital length of stay

 1–6 days

Ref

       

 7–29 days

0.564

− 0.377 to 1.504

0.237

0.120

    

Number of prescribed drugsa

0.405

0.295 to 0.515

< 0.001

0.595

0.331

0.219 to 0.443

< 0.001

0.487

  1. CI confidence interval
  2. aNumber of prescribed drugs was the only independent variable used as a continuous variable