Legibility of Patient Report Form before and after intervention
| Pre-intervention | Sample size | Post-intervention | Sample size | z Statistic | Difference in proportions, % | |
| Wholly legible | 0 | 250 | 250 | 250 | −22.36 (p<0.01) | 100 (p<0.01) |
| Partially legible | 205 | 250 | 0 | 250 | 18.64 (p<0.05) | 82 (p<0.01) |
| Wholly illegible | 45 | 250 | 0 | 250 | 7.03 (p<0.01) | 18 (p<0.01) |
| Scanned to database | 175 | 250 | 200 | 250 | −2.58 (p<0.01) | 10 (p<0.01) |