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Table 6 Association (adjusted odds ratios and 95% confidence interval) between exposure and allergic rhinitis among children (n = 388), stratified by significant covariates

From: Early childhood traffic-related air pollution and risk of allergic rhinitis at 2–4 years of age modification by family stress and male gender: a case-control study in Shenyang, China

 

n

Effect per 20 μg/m3 of PM10

Effect per 18 μg/m3 of NO2

aOR (95% CI), p-valuea

aOR (95% CI), p-valuea

Stressful family events

 No

258

0.93 (0.63, 1.22)

0.94 (0.73, 1.84)

 Yes

130

1.76 (1.10, 3.11)*, 0.028

1.94 (1.18, 3.20)**, 0.009

Parental history of allergy

 No

205

0.80 (0.61, 1.08)

1.09 (0.63, 1.23)

 Yes

83

1.08 (0.95, 1.34), 0.113

1.46 (1.00, 2.26), 0.084

Eczema during the first year

 No

198

0.76 (0.49, 1.20)

0.91(0.28, 1.85)

 Yes

190

0.91 (0.55, 1.52), 0.121

1.05 (0.69, 1.60), 0.098

Gender

 Girls

171

0.95 (0.53, 1.36)

1.42 (0.92, 2.10)

 Boys

217

1.46 (1.13, 2.08)*, 0.039

2.13 (1.31, 3.45)**, 0.004

  1. OR (95% CI) was estimated for an IQR increase in PM10, SO2, NO2, CO, and O3
  2. *p < 0.05
  3. **p < 0.01
  4. Adjustment for all the potential covariates in Table 2 including personal factors (sex, birth weight, delivery, feeding, eczema, parental allergy, and stress) and indoor factors (tobacco smoke, new furniture, pets, house redecoration) except for the stratification variables
  5. ap-value of likelihood ratio test comparing model fit with and without inclusion of interaction terms
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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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