Figure 4From: 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 80% threshold for the cystic fibrosis quality of life scale. The single item global quality of life score predicts of the adult patients with the cystic fibrosis quality of life score > 80. The receiver operating characteristic area was 83.Back to article page