Correlation between the global clinical and MRI score and outcome after shunting
| Category of GS | SR+ | SR− | Total |
|---|---|---|---|
| SR+, Improvement after shunting; SR−, no improvement after shunting; positive predictive value of “probable” SR: 91% (95% CI 71–99); negative predictive value of “improbable” SR, 50% (95% CI 16–84). | |||
| SR is probable | 20 | 2 | 22 |
| SR is possible | 11 | 7 | 18 |
| SR is improbable | 4 | 4 | 8 |
| Total | 35 | 13 | 48 |