| Medication error group (n = 374) | No-medication error group (n = 374) | Odds Ratio | 95%CI | P | ||
---|---|---|---|---|---|---|---|
Number of medications, median (IQR) | 6 | (4–8) | 5 | (3–7) | 1.1 | 1.0–1.2 | 0.01 |
Number of administrations per day, median (IQR) | 3 | (2–4) | 2 | (1–3) | 1.1 | 1.0–1.3 | 0.04 |
Dosing frequency on indicated days, n (%) | 22 | (6) | 8 | (2) | 2.6 | 1.1–6.2 | 0.03 |
Medication from multiple prescriptions, n (%) | 194 | (52) | 124 | (33) | 1.8 | 1.3–2.5 | < 0.01 |
Not one package or one table at each dosage, n (%) | 287 | (77) | 250 | (67) | 0.7 | 0.5–1.1 | 0.13 |