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Table 1 Demographic data for study population

From: Cerebrospinal fluid neurofilament light chain protein levels in subtypes of frontotemporal dementia

Group   N Male/Female Median duration of dementia at time of LP (range) Median age at LP (range) Median duration from LP to death (range)
FTD   34 15/19 3 (1–9) 70 (38–85) -
  bvFTD 23 12/11 3 (1–9) 72 (38–85) -
  SD 7 2/5 2 (1–4) 64 (53–78) -
  PNFA 4 1/3 3 (1–5) 69 (66–77) -
AD   20 7/13 2 (1–7) 72 (49–84) -
Healthy controls   26 12/14 NA 70 (56–83) -
NP verified FTD   10 5/5 3 (0.4-12) 63 (32–78) 2 (0.1-8)
  Tau-pos 3 1/2 5 (4–7) 69 (50–78) 3 (2–4)
  Tau-neg 7 4/3 3 (0.4-12) 60 (32–67) 2 (0.1-8)