By vgreene, 4 May, 2015 Sx ≤2 days/wk, ≤2 nights/mo; no activity limits, and ≤1 exac/yr requiring PO/IV steroids
By vgreene, 4 May, 2015 Sx every day or more than once/day or >1 night/wk or some activity limits or FEV1 ≤80% or FEV1/FVC ↓ by >5%
By vgreene, 4 May, 2015 Sx not every day, not more than once/day, ≤4 nights/mo, no/minor activity limits, FEV1 >80%, and FEV1/FVC NL