Table 1 Prevalence (%) of demographics and conditions among responders and non-responders in the current case-control study
From: Early life swimming pool exposure and asthma onset in children – a case-control study
Cases, n = 405 | Responders (n = 337) | Non-responders (n = 68) | p |
Sex (boy) | 54.6% | 54.4% | 0.98 |
Current wheeze | 47.6% | 42.4% | 0.44 |
Any SPT+ at age 12y | 64.3% | 58.7% | 0.48 |
Paternal smoking | 16.0% | 7.8% | 0.09 |
Maternal smoking | 13.5% | 10.6% | 0.53 |
Own smokinga | 5.7% | 7.5% | 0.59 |
Controls, n = 809 | Responders (n = 633) | Non-responders (n = 176) | p |
Sex (boy) | 47.9% | 54.0% | 0.15 |
Current wheeze | 0.3% (n = 2) | 1.2% (n = 2) | 0.17 |
Any SPT+ at age 12y | 20.1% | 18.7% | 0.77 |
Paternal smoking | 10.8% | 18.0% | 0.01 |
Maternal smoking | 12.8% | 14.9% | 0.49 |
Own smokinga | 5.1% | 5.7% | 0.75 |