Table 3 MRI volumes (mean±SEM) of medial temporal lobe–specific regions, according to APOE genotype status and HRT use

Right hippocampus

2360 ±13

2383 ±60

2362 ±13

0.367

2298 ±22

2384 ±37

2304 ±21

0.568

0.903

0.920

0.313

Left hippocampus

2284 ±13

2335 ±57

2288 ±12

0.690

2227 ±22

2333 ±43

2235 ±20

0.378

0.889

0.652

0.345

Right parahippocampal

2670 ±13

2735 ±50

2675 ±13

0.693

2624 ±20

2670 ±52

2628 ±19

0.370

0.430

0.660

0.966

left parahippocampal

2930 ±15

2971 ±46

2933 ±14

0.602

2840 ±20

2946 ±59

2849 ±19

0.801

0.587

0.698

0.302

Right entorhinal

2422 ±15

2444 ±53

2426 ±14

0.943

2378 ±22

2529 ±69

2373 ±22

0.040 ^a

0.432

0.116

0.074

Left entorhinal

2026 ±12

2014 ±43

2029 ±12

0.426

1967 ±17

2172 ±55

1974 ±17

<0.001

0.106

0.026 ^a

0.002

Right amygdala

1031 ±07

987 ±21

1029 ±06

0.030^a

1002 ±11

1062 ±31

999 ±10

0.063

0.178

0.888

0.005

Left amygdala

1073 ±07

1038 ±23

1072 ±06

0.039^a

1039 ±10

1105 ±33

1038 ±10

0.031 ^a

0.204

0.661

0.003

Ventricular volume

25444 ±814

22262 ±1725

25201 ±763

0.949

24244 ±825

24265 ±3507

24245 ±805

0.860

0.987

0.858

0.920

Right cerebral WMV

10951 ±106

11287 ±351

10977 ±102

0.658

10697 ±140

10584 ±510

10688 ±135

0.291

0.908

0.266

0.576

Left cerebral WMV

11052 ±120

11408 ±372

11080 ±114

0.764

10847 ±146

10581 ±467

10826 ±140

0.961

0.630

0.886

0.842