Table 3.
Frequency and distribution of attacks per year stratified for male vs female and atopy vs non-atopy
| Female (n = 27) | * p-value | Male (n = 15) | |||
|---|---|---|---|---|---|
| No atopy (n = 18) | Atopy (n = 9) | No atopy (n = 12) | Atopy (n = 3) | ||
| No attacks (# subjects) | 2 | 1 | 5 | 3 | |
| Rare attacks (# subjects) | 4 | 2 | 0.029 | 5 | - |
| # attacks (range) | 1.5 (1–3) | 4 (4–4) | 4 (2–6) | - | |
| Moderate attacks (# subjects) | 8 | 5 | 0.854 | 2 | - |
| # attacks (range) | 25.1 (15–37) | 26 (12–36) | 12 (12–12) | - | |
| Frequent attacks (# subjects) | 4 | 1 | - | - | |
| # attacks (range) | 89.5 (53–136) | 93 | - | - | |
* t-test: The p-values are for the comparison of attack frequency among atopic and non-atopic subjects within one specific category of attacks, where feasible
no attacks: < 1/year; rare attacks: < 1/month; ≥ 1/year; moderate attacks: < 1/week; ≥ 1/month; frequent attacks: ≥1/week