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Table 1 Distribution of age, sex, and GMFCS level (Cohort 1)
| Boys n (%) | Girls n (%) | Total n (%) | |
|---|---|---|---|
| Age (years) | |||
| 1–3 | 334 (19) | 279 (21) | 613 (20) |
| 4–6 | 416 (24) | 287 (22) | 703 (23) |
| 7–9 | 393 (23) | 270 (21) | 663 (22) |
| 10–12 | 371 (22) | 291 (22) | 662 (22) |
| 13–15 | 211 (12) | 176 (14) | 387 (13) |
| GMFCS level | |||
| I | 748 (43) | 589 (45) | 1337 (44) |
| II | 310 (18) | 206 (16) | 516 (17) |
| III | 165 (10) | 118 (9) | 283 (10) |
| IV | 263 (15) | 197 (15) | 460 (15) |
| V | 239 (14) | 193 (15) | 432 (14) |
| Total | 1725 (57) | 1303 (43) | 3028 (100) |
