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Table 2 Participant characteristics

From: Ventricular volume in relation to lumbar CSF levels of amyloid-β 1–42, tau and phosphorylated tau in iNPH, is there a dilution effect?

  Total Sample (n = 136) Males (n = 89) Females (n = 47)
Age (years) 76 (Q1 71, Q3 79) 75 (Q1 71, Q3 79) 76 (Q1 72, Q3 79)
MMSE (presurgical) 26 (Q1 22, Q3 28, n = 83) 26 (Q1 22, Q3 28, n = 47) 25 (Q1 23, Q3 28, n = 26)
TUG time (seconds, presurgical) 17 (Q1 11.9, Q3 26.0, n = 83) 16 (Q1 11.0, Q3 26.0, n = 47) 18.3 (Q1 13.5, Q3 26.0, n = 26)
Improved 63 (75.9%, n = 83) 45 (79%, n = 47) 18 (69%, n = 26)
VV 141 mL (Q1 123, Q3 166) 151 mL (Q1 128, Q3 179) 133 mL (Q1 112, Q3 142)
Aβ42 534 pg/mL (Q1 380, Q3 662) 536 pg/mL (Q1 384, Q3 641) 532 pg/mL (Q1 364, Q3 680)
Tau 216 pg/mL (Q1 163, Q3 300) 208 pg/mL (Q1 163, Q3 274) 220 pg/mL (Q1 160, Q3 331)
p-tau 31 pg/mL (Q1 23, Q3 40) 30 pg/mL (Q1 23, Q3 38) 33 pg/mL (Q1 24, Q3 45)
  1. VV Ventricular volume, Q1 first quartile, Q3 third quartile, MMSE Mini Mental State Examination, TUG Time Up and Go test