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. Author manuscript; available in PMC: 2019 Oct 1.
Published in final edited form as: Expert Rev Respir Med. 2018 Sep 3;12(10):857–865. doi: 10.1080/17476348.2018.1513331

Table 1:

Terminology used to describe acute and chronic lung health conditions in persons with CF

Category Definition Terminology References
Clinical State Describes an individual’s current clinical status with respect to baseline health, exacerbation and episodic antibiotic use Mutually exclusive states including Baseline, Exacerbation, Treatment, Recovery (26, 31)
Disease Stage Describes an individual’s level of pulmonary disease, based on lung function (ppFEV1) Early (ppFEV1 >70) Intermediate (ppFEV1 40–70) Advanced (ppFEV1 <40) (26)
Disease Aggressiveness Phenotype Describes the rate of decline in lung function relative to an individual’s age, independent of lung disease stage Mild, Moderate, Severe (30, 31)