Figure 3. Forest plot for random-effects meta-analysis on difference in CSF Aβ1-40 (A) and Aβ1-42 (B) concentrations between DS patients and HC subjects; CSF Aβ1-40 (C) and Aβ1-42 (D) concentrations between DSD and DS patients. CSF, Cerebrospinal fluid. DS, Down syndrome. DSD, Down syndrome with dementia. HC, healthy control. CI, confidence interval.