Polymorphism position | MAF FEV1# % pred | OR | p-value | ||||||||
CXCR1 | CXCR2 | ≤70 | >70 | ||||||||
-2329 | -143 | 92 | 1003 | -9185 | 768 | 1420 | |||||
CXCR1_Ha | T | T | G | T | 0.063 | 0.014 | 4.90 | 2.17×10−4 | |||
CXCR2_Ha | G | T | G | 0.059 | 0.017 | 3.80 | 0.001 | ||||
CXCR1-2_Ha | T | T | G | T | G | T | G | 0.063 | 0.010 | 7.24 | 2.30×10−5 |
MAF: minor allele frequency; FEV1: forced expiratory volume in 1 s; % pred: % predicted. CXCR1_Ha and CXCR2_Ha combine all risk alleles of CXCR1 or CXCR2, respectively; CXCR1-2_Ha combines risk alleles of both CXCR1 and CXCR2. #: longitudinal FEV1, age-adjusted (20 yrs) [9].