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Table 2 Breakdown of International HIV Dementia Scale (IHDS) Scores

From: Prevalence, characteristics and correlates of a positive-dementia screen in patients on antiretroviral therapy in Bamenda, Cameroon: a cross-sectional study

  Mean (SD) Range (IQR) N (%)
IHDS total score 9.02 (1.39) 6-12 (8–10)  
IHDS finger-tapping subscore 3.49 (0.53) 2-4 (3–4)  
  15 taps in 5 seconds    202 (51)
  11-14 taps in 5 seconds    191 (48)
  7-10 taps in 5 seconds    6 (2)
  3-6 taps in 5 seconds    
  0-2 taps in 5 seconds    
IHDS alternating hand sequence 2.25 (0.57) 1-4 (2–3)  
  4 sequences in 10 seconds    1 (0.25)
  3 sequences in 10 seconds    125 (31)
  2 sequences in 10 seconds    246 (62)
  1 sequences in 10 seconds    27 (7)
  0 sequences in 10 seconds    
  Unable to perform    
IHDS 4-word recall 3.28 (0.77) 1-4 (3–4)  
  4 words recalled    182 (46)
  3 words recalled    152 (38)
  2 words recalled    58 (15)
  1 word recalled    7 (2)
  1. Abbreviations: IHDS International HIV Dementia Scale, IQR Interquartile range, SD Standard deviation.