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Table 8 Descriptive statistics of observed and simulated NP-Batt scores for Alzheimer's disease patients at months 6, 12 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 -4.48 -2.66 -1.95 -2.05 -1.40 -0.14 0.87
Simulated -4.85 -2.65 -2.00 -2.08 -1.45 0.10 0.89
  1. Simulation based on the model for mild cognitive impairment individuals. NP-Batt, Neuro-Psychological Battery.