Table 1

Clinical and demographic details of study groups

Chondromalacia patellaeHealthy subjects
N/A, not applicable.
Total number1814
Female1614
Mean age (range), years26 (15–39)24 (21–36)
Arthroscopy5N/A
MRI knee2N/A
T score total hip BMD (range)−0.99 to 1.60−1.20 to 1.70