Table 5

Prescribing errors with an ambiguity in at least one component of the prescription

Control number of errors (% of total orders)Intervention number of errors (% of total orders)p Value
Total orders1034904
Orders with at least one communication error445 (43)208 (23)<0.001*†
Prescribing communication errors667229
Prescribing communication errors
Drug name23 (2.1)0<0.001‡
Route79 (7.6)76 (8.4)0.57†
Dose48 (4.6)5 (0.6)<0.001‡
Frequency190 (18.4)96 (10.6)<0.001‡
Administration times incorrect or missing117 (14.9) (781 orders)4 (0.5%) (762 orders)<0.001‡
PRN maximum dose missing178 (74.5) (241 orders)47 (32.6) (142 orders)<0.001‡
Slow release not specified15 (30.0) (50 orders)1 (1.5) (66 orders)<0.001‡
Intermittent order not specified17 (57.5) (30 orders)0 (38 orders)<0.001‡
  • *Logistic regression.

  • †χ2 test.

  • ‡Fisher's exact test.