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Table 4 Intraclass correlation coefficients between batches for analytes analyzed in 2 batches

From: The temporal reliability of serum estrogens, progesterone, gonadotropins, SHBG and urinary estrogen and progesterone metabolites in premenopausal women

Analyte

ICC(2,k)

95% CI

   Estradiol

0.60

-0.03-0.83

   Free Estradiol

0.70

0.24-0.87

   Estrone

0.47

-0.18-0.79

   Estrone-sulfate

0.91

0.77-0.96

   Progesterone

0.78

0.58-0.88

   SHBG

0.96

0.88-0.99

   FSH

0.76

0.57-0.88

   LH

0.65

0.36-0.82

  1. Batch 1: 3 occasions over ≈ 3 months. Batch 2: 2 occasions over ≈ 6 months. Total: 5 occasions over ≈ 1 year. SHBG = Sex hormone-binding globulin. FSH = follicle stimulating hormone. LH = luteinizing hormone. E1-G = estrone-3-glucuronide. PDG = pregnanediol-3-glucuronide. 2-OHE1 = 2-hydroxyestrone. 16α-OHE1 = 16α-hydroxyestrone.