| Mean (SD) number of errors associated with prescription components (maximum number of errors = 14) | Difference (95% CI), unpaired data analysis | p Value | ||
| Group 1, BNFC (n = 25) | Group 2, Wheel (n = 27) | |||
| Dose errors, both weight groups | 8.6 (2.84) | 0.6 (0.93) | −8 (−6.78 to −9.22) | 4.98×10−14 |
| MDI/MDF errors, both weight groups | 7.6 (2.68) | 2.7 (2.18) | −4.9 (−3.53 to −6.27) | 4.41×10−9 |
| Mean (SD) number of errors associated with prescription components (maximum number of errors = 14) | Difference (95% CI), paired data analysis | p Value | ||
| Dose errors | MDI/MDF errors | |||
| Group 1, BNFC (n = 25) | 8.6 (2.84) | 7.6 (2.68) | −1.04 (−2.31 to 0.23) | 0.12 |
| Group 2, Wheel (n = 27) | 0.6 (0.93) | 2.7 (2.18) | 2.15 (1.32 to 2.98) | 2.70×10−5 |
| Mean (SD) number of correct prescriptions (maximum = 7 for each weight group) | Difference (95% CI), paired data analysis | p Value | ||
| 10 kg child | 23 kg child | |||
| Group 1, BNFC (n = 25) | 2.2 (1.65) | 1.3 (1.22) | −0.84 (−1.26 to −0.42) | 0.0006 |
| Group 2, Wheel (n = 27) | 5.4 (1.42) | 5.5 (1.42) | 0.11 (0.72 to −0.50) | 0.73 |
| Mean (SD) number of correct prescriptions (maximum = 14 for each “grade” group) | Difference (95% CI), unpaired data analysis | p Value | ||
| Consultant/SAS doctors | Trainees | |||
| Group 1, BNFC (n = 25) | 2.7 (2.76) | 4.1 (2.59) | 1.34 (−0.18 to 2.86) | 0.228 |
| Group 2, Wheel (n = 27) | 10 (2.31) | 11.8 (2.08) | 1.79 (0.59 to 2.99) | 0.046 |
Comparison of the mean number of dose and MDI/MDF errors made by groups 1 and 2, the mean number of correct prescriptions in each weight group and the mean number of correct prescriptions by consultants/staff and associate specialist (SAS) doctors and trainees (ST3 and above). Data analysed using the t test (see table for indication of paired data).