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Table 2 Frequency of truck traffic and symptoms of rhinitis ever, current rhinitis, current rhinoconjunctivitis and hayfever along with crude and adjusted odd ratios

From: Allergic rhinitis, rhinoconjunctivitis and hayfever symptoms among children are associated with frequency of truck traffic near residences: a cross sectional study

Frequency of trucks passing near homes on weekdays Totale (%) Crude OR (95 % CI) P Adjusted OR (95 % CI) P
Rhinitis evera
Never 563 47.3 1   1  
Seldom 1033 53.1 1.26 (1.02–1.55) 0.027 1.16 (0.92–1.56) 0.197
Frequently through the day 580 49.3 1.09 (0.86–1.37) 0.451 1.03 (0.79–1.34) 0.791
Almost all day 1212 55.9 1.43 (1.16–1.75) 0.001 1.46 (1.16–1.84) 0.001
Current rhinitisb
Never 563 34.6 1   1  
Seldom 1033 41.2 1.25 (1.01–1.55) 0.038 1.30 (0.99–1.62) 0.059
Frequently through the day 580 39.1 1.23 (0.97–1.57) 0.081 1.25 (0.95–1.64) 0.102
Almost all day 1212 42.5 1.46 (1.88–1.81) 0.000 1.60 (1.24–2.02) 0.000
Current rhinoconjunctivitisc
Never 563 18.8 1   1  
Seldom 1033 23.0 1.23 (0.95–1.59) 0.113 1.17 (0.89–1.54) 0.234
Frequently through the day 580 19.0 1.01 (0.75–1.37) 0.904 0.96 (0.70–1.30) 0.799
Almost all day 1212 25.7 1.54 (1.20–1.97) 0.001 1.42 (1.09–1.84) 0.008
Hayfeverd
Never 563 32.7 1   1  
Seldom 1033 38.7 1.22 (0.98–1.51) 0.074 1.12 (0.87–1.43) 0.362
Frequently through the day 580 37.9 1.28 (1.00–1.63) 0.047 1.19 (0.90–1.57) 0.203
Almost all day 1212 38.2 1.34 (1.08–1.66) 0.007 1.23 (0.96–1.57) 0.087
  1. a, bModel adjusted for the folowing v mode of transport to school, being born in the area, vigorous physical activity, ETS exposure at home in the past 30 days, residential fuel heating type most frequently used at home
  2. cModel adjusted for mode of transport to school, being born in the area, vigorous physical activity, hours watching TV during normal week, residential heating fuel type most frequently used at home
  3. dModel adjusted for vigorous physical activity, residential fuel heating type most frequently used at home, ETS exposure at home
  4. eTotals for each risk factor are different due to difference in missing values