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Table 1 Comparison of demographic characteristics and four values for alignment of patellofemoral joint between the responder and non-responder groups

From: Value of SPECT-CT Imaging for Middle-Aged Patients with Chronic Anterior Knee Pain

Parameter Responders (n = 40) Non-responders (n = 34) P-value
Age (yr) 55 ± 6.4 53 ± 5.7 0.293
Gender (% female) 67.5 % 72.7 % 0.618
Body mass index (kg/m2) 26.1 ± 4.3 26.5 ± 4.5 0.762
Sulcus angle (°) 131 ± 7.4 128 ± 6.3 0.155
Congruence angle (°) −5.7 ± 8.5 −2.8 ± 8.9 0.178
Insall-Salvati ratio 0.98 ± 0.14 0.96 ± 0.10 0.514
Q angle (°) 9 ± 3.1 11 ± 4.6 0.061
  1. Data are presented as mean and standard deviation