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Table 5 Weighted Kappa statistics summarizing agreement between analyte quartile categories determined at each time point

From: Within-person reproducibility of urinary bisphenol A and phthalate metabolites over a 1 to 3 year period among women in the Nurses’ Health Studies: a prospective cohort study

Analyte

Weighted Kappa statistic (95% CI)

Bisphenol A

0.08 (−0.08, 0.24)

Phthalate metabolite

 

 MEP

0.28 (0.05, 0.51)

 MiBP

0.24 (0.04, 0.44)

 MnBP

0.40 (0.19, 0.61)

 DBP metabolite suma

0.36 (0.14, 0.58)

 MBzP

0.20 (−0.01, 0.41)

 MEHP

0.08 (−0.14, 0.30)

 MEHHP

0.08 (−0.16, 0.32)

 MEOHP

0.20 (−0.03, 0.43)

 MECPP

0.12 (−0.11, 0.35)

 DEHP metabolite suma

0.12 (−0.10, 0.34)

 Totalb

0.20 (−0.03, 0.43)

Phthalic acid

0.40 (0.14, 0.66)

  1. Abbreviations: BzBP benzylbutyl phthalate, CI confidence interval, DBP dibutyl phthalates, DEHP di-2-ethylhexyl phthalate, DEP diethyl phthalate, MBzP monobenzyl phthalate, MECPP mono-(2-ethyl-5-carboxy-pentyl) phthalate, MEHHP mono-(2-ethyl-5-hydroxyhexyl) phthalate, MEHP mono-2-ethylhexyl phthalate, MEOHP mono-(2-ethyl-5-oxohexyl) phthalate, MEP monoethyl phthalate, MiBP monoisobutyl phthalate, MnBP mono-n-butyl phthalate.
  2. aDBP metabolite sum = MiBP + MnBP; DEHP metabolite sum = MEHP + MEHHP + MEOHP + MECPP.
  3. bSum of 8 phthalate metabolites.