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Table 2 Demographics of DS and controls

From: Dynamics of plasma biomarkers in Down syndrome: the relative levels of Aβ42 decrease with age, whereas NT1 tau and NfL increase

   Down syndromeControl
 Age groups (in years)NAge in years mean ± SDAge in years mean ± SD
Mean age (year)0–10304.9 ± 2.95.0 ± 2.9
11–202316.2 ± 3.116.3 ± 3.2
21–301524.1 ± 2.824.0 ± 3.2
31–401035.7 ± 2.935.5 ± 3.0
41–501345.4 ± 3.645.2 ± 3.3
> 50957.1 ± 5.657.1 ± 5.6
 Age group (in years)NNumber of females (% of total)Number of females (% of total)
Sex (female)0–103015 (50.0)15 (50.0)
11–202310 (43.5)10 (43.5)
21–30154 (26.7)4 (26.7)
31–40104 (40.0)4 (40.0)
41–50134 (30.8)4 (30.8)
> 5091 (11.1)1 (11.1)
  1. Abbreviation: SD standard deviation