Table 2B.

Summary of group-diffferences between transition-group and non-transition group for each study (left hippocampus).

Author	Standardized mean difference	95% confidence interval	Weight (%)
Dean	1.2041	[−0.0092; 2.4174]	9.5
Pruessner	−0.4011	[−1.4730; 0.6708]	11.4
Buehlmann	0.2221	[−0.4305; 0.8747]	20.7
Cannon	0.0975	[−0.1863; 0.3814]	34.1
Harrisberger	−0.5401	[−1.0858; 0.0056]	24.3

“Weight” refers to the statistical weight within the random effects model.