Table 1 Characteristics of study participants: age, gender, and hand dominance
Age (years) | N | Boys | Girls | ||||
|---|---|---|---|---|---|---|---|
N | Dominant Hand | n | Dominant Hand | ||||
Right | Left | Right | Left | ||||
7 | 230 | 126 | 121 | 5 | 104 | 100 | 4 |
8 | 213 | 110 | 103 | 7 | 103 | 98 | 5 |
9 | 235 | 125 | 121 | 4 | 110 | 105 | 5 |
10 | 223 | 116 | 111 | 5 | 107 | 100 | 7 |
11 | 208 | 108 | 105 | 3 | 100 | 96 | 4 |
12 | 212 | 116 | 110 | 6 | 96 | 92 | 4 |
13 | 218 | 114 | 107 | 7 | 104 | 103 | 1 |
14 | 218 | 107 | 103 | 4 | 111 | 105 | 6 |
15 | 208 | 109 | 102 | 7 | 99 | 95 | 4 |
16 | 226 | 118 | 110 | 8 | 108 | 104 | 4 |
17 | 224 | 120 | 111 | 9 | 104 | 96 | 8 |
18 | 222 | 122 | 115 | 7 | 100 | 93 | 7 |
Total | 2637 | 1391 | 1319 | 72 | 1246 | 1187 | 59 |