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Table 4 MRCI prevalence in the studied population according to the variables: gender, age, polypharmacy, potential drug interactions, potentially inappropriate medications for patients and therapeutic duplicity

From: Evaluation of pharmacotherapy complexity in residents of long-term care facilities: a cross-sectional descriptive study

Variable Prevalence (%) PR(a) CI 95% p-value
Gender
 Man 47.62 1.00   
 Woman 43.37 0.91 (0.91–0.39) 0.39
Age
  ≥ 80 56.14 0.87 (0.65–1.16) 0.21
  < 80 64.71 1.00   
Polypharmacy
 Yes 100 5.93 (3.68–9.56) <0.0001
 No 16.87 1.00   
Potential drug interactions
 Yes 92.86 2.46 (1.8–3.37) <0.0001
 No 37.68 1.00   
Potentially inappropriate medications for the elderly
 Yes 92.86 1.49 (1.22–1.82) <0.0001
 No 62.32 1.00   
Therapeutic duplicity
 Yes 50 6.90 (2.85–16.70) <0.0001
 No 07.25 1.00   
  1. Sergipe, Brazil, 2015
  2. aPrevalence ratio