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. Author manuscript; available in PMC: 2019 Dec 1.
Published in final edited form as: Neuroimage. 2018 Aug 18;183:401–411. doi: 10.1016/j.neuroimage.2018.08.040

Table 1 -.

Baseline characteristics of WHIMS-MRI participants

Variable Mean (SD) or Frequency (%)
Had Baseline MRI (n=1365) Had Baseline MRI Only (n=653) Had Baseline and Follow-up MRI (n=712) P-value*
Age 70.53 (3.63) 71.02 (3.76) 70.08 (3.47) p<0.0001
Body mass index 28.23 (5.42) 28.28 (5.79) 28.18 (5.08) p=0.7388
Race/Ethnicity p=0.0008
Black/African - American 61 (4.47%) 44 (6.74%) 17 (2.39%)
 Hispanic/Latino 19 (1.39%) 11 (1.68%) 8 (1.12%)
 White 1245 (91.92%) 577 (88.36%) 668 (93.82%)
 Other 40 (2.93%) 21 (3.22%) 19 (2.67%)
Education p=0.1566
 < High school 60 (4.41%) 30 (4.59%) 30 (4.23%)
 High school/general education degree 317 (23.27%) 137 (20.98%) 180 (25.39%)
 > High school 985 (72.32%) 486 (74.43%) 499 (70.38%)
Smoking p=0.9134
 Never 784 (57.90%) 372 (57.32%) 412 (58.44%)
 Past 513 (37.89%) 249 (38.37%) 264 (37.45%)
 Current 57 (4.21%) 28 (4.31%) 29 (4.11%)
Cardiovascular disease ever 86 (6.30%) 49 (7.50%) 37 (5.20%) p=0.1503
Hypertension ever 650 (47.62%) 333 (51.00%) 317 (44.52%) p=0.0254
Prior use of hormone therapy 449 (32.89%) 201 (30.78%) 248 (34.83%) p=0.1116
Diabetes treated ever (oral therapy or injected insulin) 73 (5.35%) 47 (7.20%) 26 (3.65%) p=0.0036
Baseline score on Mini-Mental Examination 96.10 (3.45) 95.68 (3.88) 96.50 (2.96) p<0.0001
*

Comparing those with a baseline MRI only versus those who had both baseline and follow-up MRIs.