Table 2.

Alpha angle by physeal closure at the 3:00 and 1:30 positions

Position	Mean alpha angle	SD	Range	95% CI
Open physes (n = 46)
Anterior (3:00)	38.11	3.23	32.00–48.80	37.15–39.07
Anterosuperior (1:30)	45.20	4.08	37.80–57.00	43.99–46.42
p < 0.001
Closed physes (n = 42)
Anterior (3:00)	42.04	6.03	32.00–58.30	40.16–43.90
Anterosuperior (1:30)	50.05	7.05	39.90–64.60	47.85–52.25
p < 0.001

CI = confidence interval.