Frequency of transcribing errors by severity for doctors and pharmacy technicians
| Error severity | Error frequency (% error rate) | Percentage difference between doctor and technician groups (%) | χ2 and p value | |
| Doctor | Pharmacy technician | |||
| Minor | 64/678 (9.4%) | 9/654 (1.4%) | −8% | χ2(1)=37.5, p<0.05 |
| Significant | 62/678 (9.1%) | 16/654 (2.4%) | −6.7% | χ2(1)=25.6, p<0.05 |
| Serious | 1/678 (0.1%) | 0/654 (0%) | −0.1% | Fishers’ exact test, p=1.0 (ns) |
| Potentially lethal | 0/678 (0%) | 0/654 (0%) | 0 | NA |
| Total | 127/678 (18.7%) | 25/654 (3.8%) | −14.9% | χ2(1)=58.6, p<0.05 |