Figure 3

The percentage of students with wheezes or coughs whose F E NO was ≥ 38.0 ppb. The percentage of students whose FE NO was ≥ 38.0 ppb was higher in students with wheezes than in those with nocturnal attacks of cough (A). Among students with wheezes, FE NO was ≥ 38.0 ppb in a significantly higher percentage of male than female students (p < 0.05) (B). Nocturnal attacks of cough were observed significantly more often in women than in men (p < 0.05). Among students with nocturnal attacks of cough, FE NO was ≥ 38.0 ppb in a smaller percentage of female than male students (C).