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Table 4 Relationship between patient's and prescription's characteristics and potential drug-drug interactions

From: Potential drug-drug and drug-disease interactions in prescriptions for ambulatory patients over 50 years of age in family medicine clinics in Mexico City

Variables Patients without potential drug-drug interactions in their prescription
n = 132
Patients with at least one potential drug-drug interactions in their prescription
n = 492
Gender (female) 105 (79.5) 386 (78.5)
Civil status (single) 61 (46.2) 259 (52.6)
Did not work 102 (77.3) 416 (84.6)
Literacy (only elementary school o less) 67 (54.9) 266 (62.9)
Patient age ≥ 60* 87 (65.9) 406 (82.5)
Number of disease ≥ 3* 73 (55.3) 396 (80.5)
Cardiovascular disease* 43 (32.6) 403 (81.9)
Musculoskeletal and joint disorders 126 (95.5) 471(95.7)
Gastrointestinal disease 48 (36.4) 205 (41.7)
Endocrine, alimentary and metabolic disease* 38 (28.8) 275 (55.9)
Pulmonary disease 8 (6.0) 31 (6.3)
Mental disease 12 (9.1) 21 (4.3)
Neurological disease 11 (8.3) 40 (8.1)
Infections and parasitic disease 30 (22.7) 88 (17.9)
Number of medicines ≥ 5* 50 (37.9) 383 (77.8)
  1. *p < 0.05