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Table 1: 
Demographic data of the patients in the study (n = 57)
Demographics
Age (mean) (range) (yr)74 ± 7 (49–91)
Sex (male/female)42:15
Preoperative iNPH score (mean) (SD)54 (20)
Postoperative iNPH score (mean) (SD)66 (22)
Months from surgery to postoperative follow-up (mean) (range)6 ± 1.6 (3–9)