Table 1 Sample characteristics.

From: Machine learning prediction of incidence of Alzheimer’s disease using large-scale administrative health data

 Definite ADProbable ADNon-AD
Number614202638,710
Age80.7 (80.2–81.1)79.2 (79.0–79.5)74.5 (74.4–74.5)
Sex (male: female)229 (44.6%): 285 (55.4%)733 (36.2%): 1293 (63.8%)18,200 (47.0%): 20,510 (53.0%)
Income levela6.00 (5.73–6.27)5.90 (5.87–5.93)6.02 (5.87–6.17)
  1. Based on the 0-year prediction model; The range indicates minimum and maximum.
  2. a10 levels based on subject’s monthly salary.