Table 1.

Participants' demographic information

DecileStatistical testsa
1234567K2 or F testp value
Age range (years)18–2728–3738–4748–5758–6768–7778–90
Gender0.100.996
    Men4 (50)12 (57.1)9 (47.4)10 (52.6)9 (47.4)8 (50)8 (47.1)
    Women4 (50)9 (42.9)10 (52.6)9 (47.4)10 (52.6)8 (50)9 (52.9)
Handednessb1.820.102
    Mean/SD59/6788/3682/3692/1169/5898/589/19
    Range (minimum/maximum)−100/100−65/100−56/10070/100−78/10087/10025/100
Mini-Mental State Examination2.920.011
    Mean/SD29.5/0.829.7/0.529.2/129.2/129.3/0.928.4/1.328.8/1.5
    Range (minimum/maximum)28/3029/3026/3026/3027/3026/3025/30
  • Percentage of the age decile is given in parentheses.

  • aStatistical test to indicate whether demographics vary between deciles.

  • bHigher scores indicate greater right-hand preference.