Comparison of the scores of reliable and less reliable patients on the demographic and health-related variables
| Reliable# | Less reliable | p-value | |
| Age yrs | 46.2 | 56.4 | 0.04 |
| Sex M/F | 10/11 | 5/13 | NS |
| FEV1 | 72.7 | 62.8 | NS |
| Disease duration | 63.1 | 44.7 | NS |
| SGRQ total score | 34.1 | 48.2 | 0.01 |
| Global asthma | 2.7 | 4.3 | 0.04 |
| Anxiety | 7.3 | 6.4 | NS |
| Depression | 2.7 | 4.5 | NS |
| Medication regimen simple/complex | 19/2 | 8/10 | 0.002 |
M: male; F: female; FEV1: forced expiratory volume in one second; SGRQ: St George's Respiratory Questionnaire; NS: nonsignificant. #: Pearson's r between ratings of replicated cases ≥6.