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Table 1 Demographic information and magnetic resonance imaging measurement results

From: Distance between the supraspinatus and long head of the biceps tendon on sagittal MRI: a new tool to identify anterior supraspinatus insertion injury

Variables Anterior intact Anterior injured P-value
Number 53 50 NA
Age (years) 55.3 ± 10.8 60.4 ± 8.6 > 0.05
Sex
 Male 25 (47%) 22 (44%) > 0.05
 Female 28 (53%) 28 (56%)
BMI (kg/m2) 23.0 ± 3.5 24.2 ± 3.7 > 0.05
Tear size
 1–2 cm 25 (47%) 23 (46%) > 0.05
 2–3 cm 28 (53%) 27 (54%)
Muscle atrophy
0/I/II/III
15/35/3/0 5/24/20/1 < 0.01
Inter-tendon distance (mm) 8.0 ± 2.3 10.1 ± 2.7 < 0.01
Humeral head radius (mm) 21.9 ± 1.8 21.5 ± 1.8 > 0.05
Rotation angle (°) 5.0 ± 18.5 10.1 ± 15.5 > 0.05
  1. *Bold values indicate statistical significance (P < 0.05)
  2. MRI Magnetic resonance imaging, BMI Body mass index