Characteristics of infants with Graf IIa and IIb (the patients with an alpha angle less than 60 and more than 50 degrees) according to different affected sides and gender during January 1, 2021 to January 1, 2022
| Classes | Infants | Detection rates (%) |
|---|---|---|
| Affected side | ||
| Left | 126 | 16.70% |
| Right | 91 | 12.10% |
| Bilateral | 537 | 71.20% |
| Gender | ||
| Female | 607 | 80.50% |
| Male | 147 | 19.50% |
| Total | 754 | 100.00% |