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Table 1 Demographics of the cases and controls

From: Detection of probable dementia cases in undiagnosed patients using structured and unstructured electronic health records

  Cases (n = 1861) Controls (n = 9305)
Mean age 79.8 79.5
Gender
 Female 62 (3.3%) 310 (3.3%)
 Male 1799 (96.7%) 8995 (96.7%)
Race
 Black 112 (6.0%) 428 (4.6%)
 White 1434 (77.1%) 7099 (76.3%)
 Other 64 (3.4%) 245 (2.6%)
 Unknown 251 (13.5%) 1533 (16.5%)
Ethnicity
 Hispanic 28 (1.5%) 135 (1.5%)
 Non-Hispanic 1679 (90.2%) 8170 (87.8%)
 Unknown 154 (8.3%) 1000 (10.7%)