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Table 3 Results of principal components analysis

From: Hypothalamic-pituitary-adrenal stress axis function and the relationship with chronic widespread pain and its antecedents

  Component loadings
  1 2 3 4
Post exam serum -0.14 0.68 0.71 0.04
Post dexamethasone serum -0.08 0.71 -0.70 0.04
Saliva morning 0.69 0.15 0.03 -0.70
Saliva evening 0.70 0.07 0.03 0.71
Eigenvalue 1.89 1.18 0.81 0.13
Variance explained (%) 47 29 20 3