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Table 5 Descriptive statistics of observed and simulated NP-Batt scores for MCI at months 6, 12, 18 and 24

From: For debate: substituting placebo controls in long-term Alzheimer's prevention trials

  Minimum First quartile Median Mean Third quartile Maximum Standard deviation
Observed -3.95 -1.50 -0.97 -1.01 -0.47 1.74 0.83
Simulated -4.12 -1.59 -1.00 -1.04 -0.45 1.85 0.85
  1. MCI, mild cognitive impairment; NP-Batt, Neuro-Psychological Battery.