Table 2

Children with complete data—intervention versus control group

Intervention group (n=135)Control group (n=134)Significance of difference
Sex (male)56%7563%850.23
Parental asthma56%7557%760.95
Ethnicity
 Māori31%4234%450.60
 Pacific Island24%3319%250.31
 NZ European64%8670%940.32
 Other11%157.5%100.41
Region
 Porirua25%3428%380.65
 Hutt Valley28%3820%270.16
 Christchurch33%4533%440.97
 Dunedin/Bluff13%1819%250.31
School
 Contributing34%4629%390.46
 Full primary32%4333%440.97
 Intermediate20%2719%260.98
 Secondary14%1919%250.39
Income
 <$38 00044%6031%420.04
 $38 000–$60 00021%2833%440.04
 >$60 00016%2218%240.48
 Not specified19%2518%240.98
Smoking inside21%2822%290.97