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Distribution of children in terms of gender and Gross Motor Function Classification System (GMFCS) level in the control group (born in 1990–1991) and the study group (born in 1992–1995), shown as number (%)
| Born in 1990–1991 | Born in 1992–1995 | Total | |
|---|---|---|---|
| Male | 34 (48) | 93 (73) | 127 (59) |
| Female | 37 (52) | 50 (27) | 87 (41) |
| GMFCS level | |||
| I | 30 (42) | 67 (47) | 97 (45) |
| II | 16 (23) | 20 (14) | 36 (17) |
| III | 11 (15) | 16 (11) | 27 (13) |
| IV | 7 (10) | 21 (15) | 28 (13) |
| V | 7 (10) | 19 (13) | 26 (12) |
| Total | 71 (100) | 143 (100) | 214 (100) |
