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Table 1 Demographic characteristics of the study sample and the general HUNT3 population

From: Processing speed and working memory are predicted by components of successful aging: a HUNT study

  Study sample HUNT3
N 65 7975
Agea (Mean ± SDb), y 77.6 ± 5.0 77.0 ± 4.9
Age range, y 70.0–86.6 70.0–89.9
Females (%) 54 55
Education
 Elementary school, n (%) 21 (32) 4232 (53)
 High school, n (%) 26 (40) 1902 (24)
 College/university, n (%) 9 (14) 811 (10)
 Missing, n (%) 9 (14) 1030 (13)
  1. aAge on joining the HUNT3
  2. bSD, standard deviation