Table 1.
Participants' demographic information
| Decile |
Statistical testsa |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | K2 or F test | p value | |
| Age range (years) | 18–27 | 28–37 | 38–47 | 48–57 | 58–67 | 68–77 | 78–90 | ||
| Gender | 0.10 | 0.996 | |||||||
| Men | 4 (50) | 12 (57.1) | 9 (47.4) | 10 (52.6) | 9 (47.4) | 8 (50) | 8 (47.1) | ||
| Women | 4 (50) | 9 (42.9) | 10 (52.6) | 9 (47.4) | 10 (52.6) | 8 (50) | 9 (52.9) | ||
| Handednessb | 1.82 | 0.102 | |||||||
| Mean/SD | 59/67 | 88/36 | 82/36 | 92/11 | 69/58 | 98/5 | 89/19 | ||
| Range (minimum/maximum) | −100/100 | −65/100 | −56/100 | 70/100 | −78/100 | 87/100 | 25/100 | ||
| Mini-Mental State Examination | 2.92 | 0.011 | |||||||
| Mean/SD | 29.5/0.8 | 29.7/0.5 | 29.2/1 | 29.2/1 | 29.3/0.9 | 28.4/1.3 | 28.8/1.5 | ||
| Range (minimum/maximum) | 28/30 | 29/30 | 26/30 | 26/30 | 27/30 | 26/30 | 25/30 | ||
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.