Figure 2
From: Response to cholinesterase inhibitors affects lifespan in Alzheimer's disease
Time to death according to ChEI dose. Kaplan-Meier graph of the distribution of time from the start of cholinesterase inhibitor (ChEI) treatment to death for the variable "ChEI dose". A log-rank test showed a significant difference between high vs low doses during the first 6 months of therapy (P < 0.001). The cutoff median values for the drug doses were 5.0 mg for donepezil, 5.0 mg for rivastigmine, and 13.3 mg for galantamine.