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Table 7 Gender difference of expression for ER-⍺, ER-β, PR in the supraspinatus tendon

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

  ER-⍺ ER-β PR
Females Males Females Males Females Males
Mean ± SD 2.3 ± 0.8 1.6 ± 0.7 2.1 ± 0.8 1.3 ± 0.7 2.1 ± 0.7 1 ± 0.7
N 15 9 15 9 15 9
  1. Statistical analysis highlighted a significant gender difference of immunoreactivity for ER-β (p = 0.048) and PR (p = 0.004), with postmenopausal women showing markedly higher levels of expression than men. No statistically significant differences were found between males and females in ER-⍺ tendon expression (p = 0.055). Data are expressed as mean ± SD