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. 2020 Nov 26;30(2):220–228. doi: 10.1002/pds.5149

TABLE 2.

Medication‐related problems by multimorbidity or non‐multimorbidity group

Medication‐related problems by multimorbidity or non‐multimorbidity group (916 619 older people, Catalonia, 2012)
Non‐multimorbidity (n = 63 534) Multimorbidity (2‐4 diseases) (n = 268 836) Multimorbidity (5‐9 diseases) (n = 463 709) Multimorbidity (≥10 diseases) (n = 120 540) All (N = 916 619)
Medication‐related problems
Duplicate therapy, n (%) 1184 (1.86) 18 120 (6.74) 58 548 (12.63) 24 231 (20.10) 102 083 (11.14)
Drug‐drug interactions, n (%) 72 (0.11) 1112 (0.41) 4772 (1.03) 3073 (2.55) 9029 (0.99)
Contraindicated drugs in chronic kidney disease, n (%) 36 (0.06) 8348 (3.11) 64 466 (13.90) 37 710 (31.28) 110 560 (12.06)
Contraindicated drugs in liver disease, n (%) 178 (0.28) 5548 (2.06) 21 714 (4.68) 10 643 (8.83) 38 083 (4.15)
Potentially inappropriate medication, n (%) 10 247 (16.13) 124 847 (46.44) 333 922 (72.01) 106 120 (88.04) 575 136 (62.75)
Potentially inappropriate medications by multimorbidity or non‐multimorbidity group (575 136 older people, Catalonia, 2012)
Non‐multimorbidity (n = 10 247) Multimorbidity (2‐4 diseases) (n = 124 847) Multimorbidity (5‐9 diseases) (n = 333 922) Multimorbidity (≥10 diseases) (n = 106 120) All (N = 575 136)
Patients taking drugs with anticholinergic effect‐anticholinergic load a
Score = 1 2009 (19.61) 22 841 (18.30) 70 393 (21.08) 26 846 (25.30) 122 089 (21.23)
Score = 2 866 (8.45) 11 850 (9.49) 42 212 (12.64) 17 483 (16.47) 72 411 (12.59)
Score = 3‐5 284 (2.77) 3939 (3.16) 18 237 (5.46) 10 426 (9.82) 32 886 (5.72)
Score ≥ 6 6 (0.06) 116 (0.09) 592 (0.18) 452 (0.43) 1166 (0.20)
Patients taking drugs and risk of fall 6505 (63.48) 77 738 (62.27) 221 337 (66.28) 78 756 (74.21) 384 336 (66.83)
Patients taking drugs that affect QT interval 1291 (12.60) 16 971 (13.59) 62 146 (18.61) 28 477 (26.83) 108 885 (18.93)
Patients taking antiulcer agents without criteria for gastroprotection 2928 (28.57) 41 150 (32.96) 137 713 (41.24) 51 485 (48.52) 233 276 (40.56)
Other drugs not recommended for older people 2078 (20.28) 36 840 (29.51) 129 781 (38.87) 53 002 (49.95) 221 701 (38.55)
Patients needing gastroprotection 25 (0.24) 341 (0.27) 886 (0.27) 222 (0.21) 1474 (0.26)

Note: All variables of the table showed a significant difference (P < .001) between groups.

a

Score = 0, not shown.