Table 6.
Variable | Variable measurement† | OR (95% CI) | P value |
---|---|---|---|
All observed types of parenteral drug administration errors | |||
ICU size (beds) | 1 | 1.02 (1.01 to 1.03) | <0.01 |
ICU type: medical | 1 | 0.64 (0.42 to 0.96) | 0.03 |
ICU type: mixed | 1 | 1.57 (1.04 to 2.38) | 0.03 |
Patients per nurse | 1 | 1.26 (1.04 to 1.54) | 0.02 |
CIRS in place | Yes/no | 0.67 (0.53 to 0.84) | <0.01 |
Infusions previously prepared by pharmacist | Yes/no | 1.32 (1.02 to 1.70) | 0.03 |
No of different types of infusion pumps | 1 | 0.89 (0.81 to 0.99) | 0.03 |
Routine check at shift change | Yes/no | 0.63 (0.50 to 0.81) | <0.01 |
Labelling of syringes | Yes/no | 0.61 (0.44 to 0.86) | <0.01 |
Occupancy rate (%) | 10 | 1.02 (1.00 to 1.05) | 0.04 |
Relative turnover | 1 | 0.75 (0.60 to 0.93) | 0.01 |
Errors of commission (wrong dose, wrong drug, wrong route) | |||
Hospital size (beds) | 100 | 1.05 (1.02 to 1.08) | <0.01 |
ICU size (beds) | 1 | 1.02 (1.01 to 1.03) | <0.01 |
Patients per nurse | 1 | 1.51 (1.10 to 2.07) | 0.01 |
Patients per physician | 1 | 1.10 (1.01 to 1.20) | 0.03 |
ICU beds per nurse | 1 | 1.35 (1.02 to 1.77) | 0.03 |
CIRS† in place | Yes/no | 0.36 (0.24 to 0.54) | <0.01 |
Infusions previously prepared by pharmacist | Yes/no | 2.32 (1.57 to 3.41) | <0.01 |
Electronic prescribing system in use | Yes/no | 0.62 (0.40 to 0.95) | 0.03 |
Errors requiring an intervention | |||
CIRS in place | Yes/no | 0.44 (0.26 to 0.75) | <0.01 |
Electronic prescribing system in use | Yes/no | 0.43 (0.23 to 0.82) | 0.01 |
No of different types of perfusors | 1 | 1.16 (1.04 to 1.29) | 0.01 |
Labelling of syringes | Yes/no | 0.31 (0.18 to 0.56) | <0.01 |
CIRS=critical incident reporting system.
*Odds ratios calculated by using dependent variable “occurrence of at least one medication error” with patients as unit of analysis. Table displays unit related variables reaching significance in different sets of error.
†Increment or binary.