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Kaplan–Meier graph of the distribution of time from the start of ChEI treatment to HHS for the variable “ChEI dose.”
Notes: A log-rank test showed a significant difference between high versus low doses (P = 0.001). The cut-off median values for the drug doses were donepezil 6.9 mg, rivastigmine 6.0 mg, and galantamine 16.0 mg.
Abbreviations: ChEI, cholinesterase inhibitor; HHS, home help services.
