TABLE 6.
Variables analyzed as clinical response predictors
| Variable no. | Description |
|---|---|
| 0 | Subject identification number (used to rerandomize sets) |
| 1 | Sex |
| 2 | Age at time of surgery |
| 3 | Date of shunt valve surgery |
| 4 | Presence of subdural collection |
| 5 | Average ΔP/ΔT |
| 6 | Average ΔV/ΔT |
| 7 | Initial valve pressure setting (Pi) |
| 8 | Final valve pressure setting (Pf) |
| 9 | Valve pressure difference (Pf – P1) |
| 10 | Initial ventricular volume (Vi) |
| 11 | Final ventricular volume (Vf) |
| 12 | Ventricular volume difference (Vf – Vi) |
| 13 | Maximum valve pressure setting (Pmax) |
| 14 | Minimum valve pressure setting (Pmin) |
| 15 | Difference in maximum and minimum valve pressure settings (Pmax – Pmin) |
| 16 | Maximum ventricular volume (Vmax) |
| 17 | Minimum ventricular volume (Vmin) |
| 18 | Difference in maximum and minimum ventricular volumes (Vmax – Vmin) |