| Type of error; characteristic | No. of errors per patient, mean ± SD | Difference (95% CI) | |
|---|---|---|---|
| With characteristic | Without characteristic | ||
| Medication discrepancy | |||
| Nighttime admission (after 8 pm) | 0.43 ± 0.81 | 0.61 ± 1.11 | 0.18 (-0.19 to 0.57) |
| Length of stay ≥ 48 hr | 0.57 ± 1.06 | 0.46 ± 0.78 | -0.11 (-0.71 to 0.49) |
| Age ≥ 80 yr | 0.75 ± 1.28 | 0.48 ± 0.89 | -0.27 (-0.63 to 0.08) |
| Female sex | 0.63 ± 1.11 | 0.50 ± 0.97 | -0.13 (-0.47 to 0.20) |
| ≥ 8 medications on best-possible medication history | 1.09 ± 1.41 | 0.24 ± 0.50 | -0.84 (-1.16 to -0.53) |
| Prepopulated medication reconciliation form | 0.55 ± 1.05 | 0.75 ± 0.89 | 0.20 (-0.55 to 0.94) |
| Cognitive impairment | 1.31 ± 1.84 | 0.49 ± 0.91 | -0.81 (-1.40 to -0.23) |
| Error of commission | |||
| Nighttime admission (after 8 pm) | 0.20 ± 0.46 | 0.17 ± 0.46 | -0.03 (-0.20 to 0.14) |
| Length of stay ≥ 48 hr | 0.17 ± 0.45 | 0.23 ± 0.60 | 0.06 (-0.21 to 0.32) |
| Age ≥ 80 yr | 0.21 ± 0.50 | 0.17 ± 0.44 | -0.04 (-0.20 to 0.12) |
| Female sex | 0.24 ± 0.55 | 0.13 ± 0.37 | -0.11 (-0.26 to 0.03) |
| ≥ 8 medications on best-possible medication history | 0.28 ± 0.56 | 0.12 ± 0.38 | -0.16 (-0.32 to -0.01) |
| Prepopulated medication reconciliation form | 0.18 ± 0.47 | 0.13 ± 0.35 | -0.06 (-0.39 to 0.28) |
| Cognitive impairment | 0.15 ± 0.38 | 0.18 ± 0.47 | 0.03 (-0.24 to 0.29) |
Note: CI = confidence interval, SD = standard deviation.