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Table 4 The prevalence of self-reported current rhinitis 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

Variable Totala Current rhinitis (%) Crude OR (95 % CI) P Adjusted OR (95 % CI)b P
Mode of transport to school
Walk 1728 37.1 1   1  
Taxi/Bus 708 40.1 1.11 (0.92–1.33) 0.253 1.15 (0.93–1.42) 0.194
Motor car 683 43.2 1.18 (0.92–1.51) 0.169 1.31 (0.92–1.87) 0.127
Combination 201 52.7 1.75 (1.27–2.43) 0.001 1.81 (1.21–2.71) 0.004
Train 100 44.0 1.27 (0.83–1.93) 0.259 1.40 (0.86–2.27) 0.172
Frequency of trucks passing near homes on weekdays
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
Sex
Female 1790 43.0 1   1  
Male 1634 37.0 0.77 (0.67–0.89) 0.000 0.82 (0.70–0.96) 0.016
Born within the area
No 1609 37.6    1  
Yes 1812 42.2 1.29 (1.12–1.49) 0.000 0.82 (0.70–0.96) 0.013
Vigorous physical activity
Never or occasionally 984 37.2 1   1  
Once or twice per week 1417 42.2 1.22 (1.03–1.44) 0.017 1.27 (1.05–1.53) 0.012
3 or more times per week 983 40.2 1.10 (0.92–1.33) 0.263 1.08 (0.88–1.34) 0.424
Residential heating fuel type most frequently used
Electricity 2041 40.3 1   1  
Gas 426 46.0 1.26 (1.02–1.56) 0.029 1.31 (1.04–1.65) 0.022
Paraffin 631 36.3 0.93 (0.76–1.13) 0.466 0.88 (0.70–1.11) 0.289
Open fire 270 39.2 1.01 (0.77–1.31) 0.934 1.09 (0.81–1.46) 0.553
Exposure to ETS at home
No 1460 39.0 1   1  
Yes 1452 42.0 1.16 (1.00–1.34) 0.048 1.16 (0.99–1.36) 0.054
  1. aTotals for each risk factor are different due to difference in missing values
  2. bModel adjusted for all the variables in this table