Table 2

Percentage changes in lung function in girls and boys according to habitual presence in the kitchen

BoysGirls
%95% CI%95% CI
FEV1
Sometimes0.01–2.85 to 2.39–1.28–4.64 to 2.19
Often1.06–3.00 to 5.30–0.58–4.90 to 3.94
FEV1/FVC
Sometimes0.45–0.86 to 1.79–1.12–2.82 to 0.61
Often–0.09–2.12 to 1.99–1.99–4.16 to 0.222-150
FEF25–75
Sometimes2.13–2.53 to 7.02–4.83–10.43 to 1.11
Often5.38–2.03 to 13.35–5.95–13.01 to 1.68
FEF50
Sometimes1.48–3.43 to 6.64–4.56–10.37 to 1.63
Often5.27–2.60 to 13.78–7.45–14.63 to 0.342-150
FEF75
Sometimes4.35–2.98 to 12.23–10.34–18.36 to –1.542-160
Often4.41–6.80 to 16.96–11.10–21.18 to 0.262-150
  • Models were adjusted for age, height, father's education, parental smoking.

  • 2-150 p<0.10;

  • 2-160 p<0.05.