IL7R and chronic obstructive pulmonary disease: Interestingly, our prediction profile analysis indicate that BMI < 23.62 kgm−2, blood lnc-IL7R level < 0.53, smoking history (ex or current) with pack-year > 50.58, SO2 > 3.08 parts per billion (ppb), O3 < 26.27 ppb, NO2 > 20.08 ppb, THC < 2.18 parts per million (ppm), PM10 < 40.10 mg m−3, and PM2.5 > 22.18 mg m−3 define an exacerbated COPD-E phenotype (Figure 2B).