Table 3.
Results of multiple regression analysis for factors associated with the natural log of plasma CIT, ARG, NO, and blood ammonia (dependent variables) in diarrheic calves
| B | SE B | β | t | P value | |
|---|---|---|---|---|---|
| Predicting: CIT (μmol/L) | |||||
| Constant | 3.60 | 0.17 | 21.26 | <.001 | |
| SIRS (no/yes) | −0.58 | 0.25 | −0.28 | −2.28 | .02 |
| Diarrhea etiology (noninfectious/infectious) | −0.24 | 0.37 | −0.09 | −0.64 | .51 |
| Age (day) | 0.02 | 0.02 | 0.11 | 0.85 | .39 |
| Predicting: ARG (μmol/L) | |||||
| Constant | 4.94 | 0.14 | 35.22 | <.001 | |
| SIRS (no/yes) | −0.55 | 0.21 | −0.33 | −2.63 | .01 |
| Diarrhea etiology (noninfectious/infectious) | −0.23 | 0.30 | −0.10 | −0.76 | .44 |
| Age (day) | 0.02 | 0.02 | 0.19 | 1.56 | .12 |
| Predicting: NO (μM) | |||||
| Constant | 1.70 | 0.07 | 22.70 | <.001 | |
| SIRS (no/yes) | 0.56 | 0.11 | 0.55 | 4.98 | <.001 |
| Diarrhea etiology (noninfectious/infectious) | 0.23 | 0.16 | 0.17 | 1.43 | .16 |
| Age (day) | −0.01 | 0.01 | −0.15 | −1.14 | .26 |
| Predicting: ammonia (μmol/L) | |||||
| Constant | 3.89 | 0.17 | 22.69 | <.001 | |
| SIRS (no/yes) | 0.75 | 0.15 | 0.63 | 4.86 | <.001 |
| Diarrhea etiology (noninfectious/infectious) | 0.48 | 0.20 | 0.25 | 2.32 | .02 |
| Age (day) | −0.01 | 0.01 | −0.09 | −0.72 | .47 |
Abbreviations: ARG, arginine; NO, nitric oxide; SIRS, systemic inflammatory response syndrome.