Mean (SD) percentage of correct, incorrect, missing, and self-invented peak flow entries for both groups
| BI group | EI group |
95% CI for difference between BI and EI group2-150 | |
| Correct | 49.1 (21.5) | 52.2 (26.1) | –18.4 to 12.3 |
| Incorrect | 22.7 (8.6) | 28.5 (8.6) | –16.3 to 4.8 |
| Missing | 5.8 (7.6) | 6.5 (11.6) | –7.0 to 5.6 |
| Self-invented | 22.4 (23.5) | 13.1 (12.2) | –2.7 to 21.3 |
BI = basic information; EI = extended information (see text).
↵2-150 Unpaired t test.