Table 1.

Clinical characteristics of 31 iNPH patients at baseline, and pre- and postoperative iNPH scale scores

Clinical characteristics	Value
Age (mean ± SD)	74 ± 7
Gender (male/female)	22/9
Symptom duration in months (mean ± SD)	44 ± 40
Diabetes (%)	42
Hypertension (%)	61
Cardiovascular disease (%)	29
MMSE (median, IQ interval)	27 (24–28)
Daily need of sleep in hours (mean ± SD)	9 ± 3
iNPH scale score
Baseline (median, IQ interval)	56 (50–74)
Postoperative (median, IQ interval)	70 (53–81)

MMSE mini mental state examination

Cardiovascular disease: atrial fibrillation, ischemic heart disease, congestive heart disease