| | | | (%) | Social Engagement
(Range −0.79, 1.09) | (SD) | Total brain volume
(Range 880.6, 1449.3) | (SD) |
| | All | 348 | (100%) | 0.01 | (0.33) | 1137.4 | (100.4) | | Age | | | | | | | | 48–59 | 82 | (23.6%) | −0.07 | (0.35) | 1187.5 | (94.6) | | 60–64 | 92 | (26.4%) | 0.04 | (0.32) | 1161.3 | (90.6) | | 65–69 | 84 | (24.1%) | 0.02 | (0.29) | 1123.9 | (81.8) | | 70–82 | 90 | (25.9%) | 0.07 | (0.33) | 1079.7 | (100.4) | | | | | | | | | | Race/ethnicity | | | | | | | | White/Non-Hispanic | 315 | (90.5%) | 0.02 | (0.32) | 1141.6 | (99.9) | | All other | 33 | (9.6%) | −0.05 | (0.40) | 1097.1 | (97.9) | | | | | | | | | | Educational attainment | | | | | | | | <High school | 25 | (7.2%) |
−0.05
| (0.41) | 1083.1 | (74.7) | | High school | 90 | (25.9%) |
−0.05
| (0.32) | 1139.8 | (97.4) | | High school + trade school | 167 | (48.0%) | 0.03 | (0.30) | 1135.8 | (101.6) | | College degree | 56 | (16.1%) | 0.04 | (0.34) | 1171.6 | (92.2) | | Graduate degree | 10 | (2.9%) | 0.28 | (0.41) | 1086.1 | (137.9) | | | | | | | | | | Hypertension | | | | | | | | Yes | 180 | (51.7%) | 0.01 | (0.32) | 1116.6 | (97.5) | | No | 168 | (48.3%) | 0.01 | (0.33) | 1159.6 | (99.0) | | | | | | | | | | Diabetes | | | | | | | | Yes | 54 | (15.5%) | −0.01 | (0.29) | 1098.8 | (90.5) | | No | 294 | (84.5%) | 0.02 | (0.34) | 1144.4 | (100.7) | | | | | | | | | | Control status | | | | | | | | Population-based control | 43 | (12.4%) | 0.12 | (0.29) | 1103.5 | (100.5) | | Former lead worker | 305 | (87.6%) | 0.00 | (0.33) | 1142.1 | (99.6) | | | | | | | | |
|
|