Fig. 2From: Do psychological factors or radiographic severity play a role in the age of onset in symptomatic developmental dysplasia of hip and femoroacetabular impingement syndrome?Plot of Age of DDH Onset (years) against the selected variables, with a fitted linear regression line and 95% confidence limits. BMI group (coded 1: > 30 kg/m2 vs. coded 0: ≤30 kg/m2) and Tonnis Grade (grade 1 vs. grade 0), with the fitted regression line at the mean level of each group. Observed sample, N = 56 for the DDH groupBack to article page