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Table 5 Semiquantitative evaluation of ER-⍺, ER-β, PR expression in the supraspinatus tendon of women

From: The role of estrogen and progesterone receptors in the rotator cuff disease: a retrospective cohort study

Variables Grade 0 Grade 1 Grade 2 Grade 3
ER-⍺ tenocytes 0 (0%) 3 (20%) 5 (33.3%) 7 (46.7%)
ER-⍺ vessels 9 (60%) 4 (26.7%) 1 (6.7%) 1 (6.7%)
ER-β tenocytes 0 (0%) 4 (26.7%) 5 (33.3%) 6 (40%)
ER-β vessels 8 (53.3%) 4 (26.7%) 3 (20%) 0 (0%)
PR tenocytes 0 (0%) 3 (20%) 8 (53.3%) 4 (26.7%)
PR vessels 8 (53.3%) 3 (20%) 3 (20%) 1 (6.7%)
  1. Data are absolute values and percentages of positively stained cells in women’s samples for the expression of ER-⍺, ER-β, PR in the supraspinatus tendon: it was quantified considering four grades of diffuse immunoreactivity: 0 = no expression; 1 = weak expression; 2 = high expression; 3 = very high expression