Table 1. Descriptive statistics for age, sex and handedness of whole sample and across age-bands.
| Total Sample | 4 to 5 years | 6 to 7 years | 8 to 9 years | 10 to 11 years | ||||||
| n | 422 | 80 | 122 | 143 | 77 | |||||
| Sex 1 | ||||||||||
| Male | 216 | (51%) | 40 | (50%) | 60 | (49%) | 80 | (56%) | 36 | (47%) |
| Female | 206 | (49%) | 40 | (50%) | 62 | (51%) | 63 | (44%) | 41 | (53%) |
| Handedness 1 | ||||||||||
| Right | 369 | (87%) | 71 | (89%) | 111 | (91%) | 123 | (86%) | 64 | (83%) |
| Left | 53 | (13%) | 9 | (11%) | 11 | (9%) | 20 | (14%) | 13 | (17%) |
| Age (years, months) | ||||||||||
| Median | 8,1 | 5,4 | 7,2 | 9,1 | 10,7 | |||||
| IQR | 6,6 to 9,8 | 4,10 to 5,9 | 6,7 to 7,6 | 8,7 to 9,7 | 10,4 to 11,0 | |||||
| Range | 4,6 to 11,5 | 4,6 to 5,11 | 6,0 to 8,0 | 8,0 to 10,0 | 10,0 to 11,5 | |||||
1
Denominators for percentages are relative to each column's n (see first row of the table).