Table 2.
Pearson Correlation Coefficients of Characteristics and Length of Hospitalization
| Variable Pearson Correlation | Coefficient | P-Value |
| Length of hospitalization (LOH) | 1 | – |
| Blood urea nitrogen, serum | 0.186 | .057 |
| Creatinine, serum | 0.382 | < .0001 |
| Potassium, serum | 0.100 | .308 |
| Bicarbonate, serum | -0.349 | .0003 |
| ASO titer | 0.053 | .604 |
| Systolic blood pressure | -0.123 | .211 |
| Diastolic blood pressure | -0.090 | .361 |
| Percent weight change | 0.139 | .154 |
ASO, antistreptolysin O (antibodies against streptolysin O, a substance produced by Streptococcus pyogenes)