Table 5 Rhinitis in relation to traffic.

n^c

n, %

Adj OR^d

n^c

n, %

Adj OR^d

Heavy traffic

No

5641

1154(20.5%)

1.00

4887

400(8.2%)

1.00

Yes

3070

710(23.1%)

1.13(1.01–1.26)

2565

205(8.0%)

0.99(0.83–1.18)

Heaviest road radie <100 m

no heavy road

3523

715(20.3%)

1.00

3040

232(7.6%)

1.00

<2 cars/min

2087

421(20.2%)

0.99(0.87–1.14)

1814

148(8.2%)

1.08(0.87–1.34)

2–5 cars/min

1684

373(22.1%)

1.11(0.96–1.28)

1447

136(9.4%)

1.27(1.01–1.58)

6–10 cars/min

835

201(24.1%)

1.27(1.06–1.53)

685

51(7.4%)

0.96(0.70–1.32)

>10 cars/min

544

143(26.3%)

1.30(1.05–1.61)

435

34(7.8%)

1.07(0.73–1.56)

NOx (ug/m3)

0–8

1759

329(18.7%)

1.00

1526

96(6.3%)

1.00

8–11

1729

391(22.6%)

1.30(1.10–1.53)

1464

126(8.6%)

1.39(1.05–1.83)

11–14

1731

368(21.3%)

1.16(0.98–1.38)

1487

124(8.3%)

1.37(1.04–1.80)

14–19

1721

347(20.2%)

1.14(0.96–1.35)

1511

137(9.1%)

1.47(1.12–1.93)

>19

1733

418(24.1%)

1.33(1.13–1.57)

1433

118(8.2%)

1.37(1.03–1.81)

p-trend

0.006

p-trend

0.057