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Decision tree analysis for selecting shunt responders. At the first step, 57 shunt responders (SR) among 64 patients with improvement of any domain in iNPHGS [GS-Total-change (+)] group were selected as positive cases. At the second step, nine SR were selected from the 36 patients without improvement in iNPHGS [GS-Total-change (-)] group with the variable of CSFP greater than 15 cm H20. This resulted in 82.5% of 80 SR patients being identified in two steps.
