Table 3– Association between incense burning at home and GSTT1 genotype on subcategories of asthma and wheeze
No incenseWith incense
GSTT1 presentGSTT1 nullGSTT1 presentGSTT1 null
Univariate model
 Asthma
  Lifetime asthma1.001.12 (0.76–1.65)0.87 (0.61–1.25)1.11 (0.79–1.58)
  Current asthma#1.001.37 (0.77–2.45)1.09 (0.63–1.87)1.56 (0.93–2.63)
  Medication use1.001.39 (0.67–2.88)1.25 (0.64–2.44)1.87 (0.99–3.55)
 Wheeze
  Lifetime wheeze1.001.08 (0.78–1.48)0.87 (0.65–1.17)1.12 (0.84–1.49)
  Current wheeze1.000.96 (0.57–1.62)0.79 (0.49–1.27)1.03 (0.65–1.63)
  Nocturnal wheeze#1.000.62 (0.28–1.36)0.84 (0.45–1.58)1.19 (0.65–2.16)
  Exercise wheeze1.001.27 (0.75–2.14)1.67 (1.06–2.62)1.68 (1.07–2.66)
Mutually adjusted model
 Asthma
  Lifetime asthma1.001.14 (0.76–1.70)0.99 (0.68–1.44)1.25 (0.87–1.81)
  Current asthma#1.001.40 (0.76–2.57)1.36 (0.77–2.40)1.92 (1.11–3.32)
  Medication use1.001.32 (0.62–2.79)1.42 (0.71–2.85)2.12 (1.09–4.12)
 Wheeze
  Lifetime wheeze1.001.08 (0.77–1.50)1.02 (0.75–1.39)1.27 (0.94–1.72)
  Current wheeze#1.001.02 (0.59–1.76)0.96 (0.58–1.60)1.20 (0.73–1.97)
  Nocturnal wheeze#1.000.65 (0.29–1.45)0.87 (0.44–1.70)1.30 (0.69–2.46)
  Exercise wheeze1.001.33 (0.77–2.28)1.89 (1.17–3.05)1.91 (1.18–3.09)
  • Data are presented as odds ratios with 95% confidence intervals. #: significant interaction; : models are adjusted for age, sex, parental education, parental asthma, parental atopy, gestational age, city, maternal smoking during pregnancy and environmental tobacco smoke at home.