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Table 1 Demographic characteristics of all variables, non-RC tear group versus RC tear group

From: Low serum vitamin B12 levels are associated with degenerative rotator cuff tear

  RC tear (n = 40) Non-RC tear (n = 47) P-value
Sex    0.017**
 Male 23 (57.5%) 14 (29.8%)  
 Female 17 (42.5%) 33 (70.2%)  
Age (years) 61.0 (5.3) 59.3 (5.9) 0.142*
DM    0.970**
 Yes 7 (17.5%) 7 (14.9%)  
 No 33 (82.5%) 40 (85.1%)  
HTN    0.823**
 Yes 12 (30.0%) 12 (25.5%)  
 No 28 (70.0%) 35 (74.5%)  
CVA    0.887**
 Yes 2 (5.0%) 1 (2.1%)  
 No 38 (95.0%) 46 (97.9%)  
Glucose (mg/dL) 109.0 (21.5) 117.7 (34.8) 0.159*
Mg (mg/dL) 2.0 (0.3) 2.0 (0.2) 0.277*
Ca (mg/dL) 9.2 (0.4) 9.2 (0.7) 0.862*
P (mg/dL) 3.2 (0.6) 3.6 (0.7) 0.008*
Zn (mg/dL) 74.8 (12.8) 71.3 (12.6) 0.203*
HCY (μmol/L) 9.4 (2.4) 9.3 (3.1) 0.924*
Vit D (ng/mL) 15.7 (7.2) 21.6 (10.0) 0.002*
Vit B12 (pg/mL) 528.4 (145.7) 627.1 (183.0) 0.007*
Folate (ng/mL) 8.6 (6.5) 8.2 (4.4) 0.739*
BMD (g/cm2) −1.8 (1.2) −1.4 (1.2) 0.116*
  1. Results are presented as mean (standard deviations) values. RC Rotator cuff, DM Diabetes mellitus, HTN Hypertension, CVA Cerebrovascular attack, Mg: Magnesium, Ca Calcium, P Phosphate, Zn Zinc, HCY Homocysteine, Vit D Vitamin D, Vit B12 Vitamin B12, BMD Bone mineral density. *: T-test, **: Pearson chi-square test