Table 7 Odds ratios of trivariate regressions between asthma without hayfever, NO₂LUR and confounding variables within subgroups with significant bivariate associations⁺

1.137**

(1.012–1.278)

1.198**

(1.019–1.408)

1.142**

(1.014–1.288)

1.109

(0.935–1.237)

1.127*

(0.989–1.285)

1.174

(0.964–1.429)

1.163**

(1.019–1.327)

1.178*

(0.980–1.417)

1.139*

(0.989–1.311)

1.155

(0.948–1.406)

1.145**

(1.011–1.297)

1.170

(0.967–1.416)

1.152**

(1.001–1.326)

1.326**

(1.056–1.666)