Table 1

Baseline characteristics—community cases, emergency department cases, controls

CharacteristicsCommunity cases (n=89)Emergency cases (n=84)All cases (n=173)Controls (n=106)p value*
Values are medians or numbers (range or percentages).
*All cases v controls.
†Of preschool aged children.
Age (y), median (range)3.1 (1.1–7.0)3.1 (1.0–6.7)3.1 (1.0–7.0)3.2 (1.0–7.0)0.11
Clinical score, median (range) 1 (1–9) 5 (1–9) 3 (1–9) 0
Sex (% male)61 (69)48 (57)109 (63)66 (62)0.90
Smoke exposure (% exposed)22 (25)20 (24) 42 (24)18 (17)0.15
Family history of asthma (%)49 (55)46 (54) 95 (55)64 (60)0.37
Atopy (%)11 (12)45 (54) 56 (32)13 (12)0.0002
Daycare (%)†25 (35)30 (43) 55 (39)36 (44)0.45