Table 6.
Statistical characteristics for QoL in the “Environmental stimuli” domain of the AQLQ in relation to clinical factors
| Category | n | Me | Lower quartile | Upper quartile | P-value |
|---|---|---|---|---|---|
| Nicotine use | |||||
| Nonsmokers | 53 | 14 | 10 | 16 | 0.645 |
| Current smokers | 41 | 16 | 10 | 17 | |
| Past smokers | 6 | 15 | 7 | 24 | |
| Dominant symptom of asthma | |||||
| Daytime dyspnea | 88 | 15 | 10 | 17 | 0.558 |
| Morning cough | 9 | 18 | 11 | 24 | |
| Nighttime dyspnea | 3 | 7 | 7 | 27 | |
| Frequency of acute asthma exacerbations | |||||
| 1 every several months | 3 | 17 | 16 | 17 | 0.460 |
| 1 per month | 11 | 14 | 10 | 20 | |
| 1 per week | 5 | 10 | 7 | 12 | |
| 2–3 per week | 20 | 15 | 11 | 16 | |
| Every day (daytime) | 36 | 15 | 10 | 18 | |
| Every day (nighttime) | 23 | 15 | 8 | 20 | |
| Allergy to ≥1 allergen | |||||
| No allergies | 37 | 17 | 12 | 22 | 0.001 |
| Allergy | 63 | 12 | 8 | 16 | |
| Frequency of AC visits | |||||
| Fewer | 25 | 19 | 14 | 21 | 0.040 |
| 3 per year | 10 | 15 | 7 | 16 | |
| 6 per year | 19 | 12 | 8 | 16 | |
| 1 per month | 27 | 15 | 10 | 16 | |
| 2 per month | 19 | 12 | 10 | 17 | |
| Number of hospitalizations | |||||
| 1–2 | 46 | 15 | 10 | 20 | 0.116 |
| 3–5 | 14 | 12 | 10 | 17 | |
| 6–10 | 15 | 12 | 6 | 16 | |
| More | 25 | 14 | 10 | 16 | |
| Histamine test | |||||
| Negative | 27 | 16 | 12 | 21 | 0.013 |
| Positive | 73 | 13 | 9 | 17 | |
| Comorbidities | |||||
| None | 38 | 14 | 10 | 17 | 0.420 |
| Present | 62 | 15 | 10 | 20 |
Note: Data in bold indicates statistical significance.
Abbreviations: QoL, quality of life; AQLQ, Asthma Quality of Life Questionnaire; Me, median; AC, allergy clinic.