Figure 2 | npj Primary Care Respiratory Medicine

Figure 2

From: Prediction of COPD-specific health-related quality of life in primary care COPD patients: a prospective cohort study

Figure 2

Calibration curve for the dyspnoea model at 6 months. x axis, predicted CRQ score; y axis, observed CRQ score (scores range from 1 (worst) to 7 (best)); (──) diagonal, x=y, perfect prediction; (- - -) regression line, note that predicted score > observed score up to a predicted score of 4.5, and predicted score < observed score for values above 4.5; (······)±0.5 (minimal important difference); (■) deciles, note that all deciles remained within the 0.5 range, meaning that the average per decile is within the limits of the minimal important difference; grey numbers, all predicted values per decile. Note that CRQ dyspnoea scores are relatively high, which is expected in this primary care cohort.

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