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Predictors of total cost of treating acute diarrhea on best subset Linear regression
| Variables | Coefficient | Std Error | Student's T | P value |
| Treatment | -19.1 | 28.7 | -0.66 | 0.5 |
| Age ≥ 1 yr. | -13.6 | 13.9 | -0.98 | 0.3 |
| Complications | 25.6 | 15.9 | 1.6 | 0.10 |
| Dehydration | 166.1 | 40 | 4.14 | 0.000 |
| Total stool output | -0.02 | 0.01 | -1.45 | 0.14 |
| Use of IV fluids | 131.1 | 88.5 | 1.48 | 0.14 |
| Length of hospital stay | 154.8 | 8.1 | 18.9 | 0.000 |
