Table 6.

Performance of COPD-PS™ cut-point scores in screening for AO

Cut-Point Score	Odds Ratio	Sensitivity (%)	Specificity (%)	Positive Predictive Value (%)	Negative Predictive Value (%)	Percent (%) Correctly Classified	Area Under ROC Curve
≥ 4	11.10	93.6	43.3	50.3	91.7	62.4	0.68
5	8.34	84.4	60.7	56.8	86.4	69.7	0.73
6	7.69	73.4	73.6	63.0	81.9	73.5	0.74
7	7.29	59.6	83.2	68.4	77.1	74.2	0.71
8	7.92	40.4	92.1	75.9	71.6	72.5	0.66
9	8.75	20.2	97.2	81.5	66.5	67.9	0.59
Continuous Score	1.72	59.6	83.2	68.4	77.1	74.2	0.81

COPD-PS: COPD Population Screener; COPD: chronic obstructive pulmonary disease; AO: fixed airflow obstruction; ROC: receiver operating characteristic.