Table 3 Coefficients, correlation and multiple r squared values of the original and the reduced linear models for OCS 9 point and OCS 13 point groups
From: Estimation of the severity of breathlessness in the emergency department: a dyspnea score
Dimension 1 (exercise tolerance) | Dimension 2 (speech) | Dimension 3 (cooperation) | Dimension 4 (cyanosis) | Dimension 5 (SpO2) | Dimension 6 (breathing) | Dimension 7 (heart rate/rhythm) | Correlation coefficients | Multiple r squared | ||
|---|---|---|---|---|---|---|---|---|---|---|
OCS 9 points | Original | 0.089 | 0.117 | 0.323* | 0.418** | 0.310 | 0.211 | 0.117 | 0.545 | 0.628 |
Reduced | - | - | 0.365* | 0.446** | 0.418** | 0.340** | - | 0.541 | 0.623 | |
OCS 13 points | Original | 0.500** | −0.003 | 0.422 | 0.582** | 0.555** | 0.330 | 0.082 | 0.550 | 0.708 |
Reduced | 0.603** | - | 0.522* | 0.690** | 0.625** | - | - | 0.540 | 0.703 |