Figure 3From: Reliability and validity of a single item measure of quality of life scale for adult patients with cystic fibrosis The sensitivity and specificity of the single-item global quality of life scale compared to a 50% threshold for the cystic fibrosis quality of life scale. The single item global quality of life score predicts of the adult cystic fibrosis patients with the cystic fibrosis quality of life score > 50. The receiver operating characteristic area was 84.Back to article page