GSTP1 and asthma: For example, the odds of current asthma per 10 μg/m3 NO2 for GSTP1 rs1138272 minor allele carriers were 2.19 (0.54, 8.86) in BAMSE, 6.33 (95% CI: 0.66, 60.8) in GINI and LISA Munich, 5.44 (95% CI: 1.23, 24.0) in GINI and LISA Wesel, 2.27 (95% CI: 0.69, 7.49) in PIAMA, 2.30 (95% CI: 0.02, 256) in CAPPS Vancouver, and 19.20 (95% CI: 0.79, 466) in CAPPS and SAGE Winnipeg, versus 2.59 (95% CI: 1.43, 4.68) in pooled data.