Table 1:

Univariate analysis of initially asymptomatic hips comparing those that develop symptoms to those that remained asymptomatic. P-values <0.05 are considered significant and are in bold.

	Symptomatic n=27 (range)	Asymptomatic n=87 (range)	P-value
Age	31.8	30.1	0.549
Male*	51.9%	34.5%	0.105
BMI	24.2	24.4	0.871
Follow-up interval (years)	2.76	2.78	0.939
Radiographs
Maximum α-angle (AP or Dunn)	70.3° (43.8–97.8°)	72.7° (40.2–103.8°)	0.503
Head-Neck Offset Ratio AP	0.153	0.163	0.027
Head-Neck Offset Ratio Dunn	0.149	0.155	0.209
Lateral center edge angle (LCEA)	29.3° (15.3°−44.0°)	29.3 (14.5°−49.6°)	0.978
LCEA ≥ 40	7.4%	8.0%	1.000
Acetabular inclination (AI)	5.3° (−1.4°−18.6°)	6.6° (−12.0°−15.8°)	0.212
AI < 0	7.4%	8.0%	1.000
Crossover sign (% positive)	25.9%	27.6%	0.865
UCLA Activity Score ≥ 9*	18.2%	43.8%	0.032
Range of Motion
Total Arc of Rotation: Extension	42.8° (10–70°)	46.2° (20–110°)	0.320
Total Arc of Rotation: 90° Flexion	39.4° (15–80°)	50.4 (15–110°)	0.012
Internal Rotation in 90° Flexion	10.7° (−5–30°)	14.3° (0–50°)	0.096

Groups compared with Student’s t-test unless otherwise noted;

^*Chi-squared test