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U.S. Department of Health and Human Services Office of Disease Prevention and Health Promotion

Reduce exposure to bisphenol A — EH‑10 Data Methodology and Measurement

On this page:  About the National Data  |  Methodology  |  History

About the National Data

Data

Data Source:  National Health and Nutrition Examination Survey (NHANES), CDC/NCHS

Baseline: 5.30 micrograms per gram (µg/g) was the concentration level of bisphenol A (creatinine corrected) in urine samples at which 95 percent of the population aged 3 years and over was at or below in 2015-16

Target: 0.72 µg/g

Numerator
Concentration level of urinary bisphenol A (2,2-bis[4-Hydroxyphenyl] propane) (creatinine corrected) at which 95 percent of the population aged 3 years and over is at or below the measured value.
Target-setting method
Projection
Target-setting method details
Linear trend fitted using ordinary least squares and a projection at the 67 percent prediction interval.
Target-setting method justification
Trend data were evaluated for this objective. Using historical data points, a trend line was fitted using ordinary least squares, and the trend was projected into the next decade. This method was used because three or more comparable data points were available, the projected value was within the range of possible values, and a projection at the 67 percent prediction interval was selected because, based on the trajectory of the decline and its slope, it was expected that this target best fit the predicted decline by 2030.

Methodology

Methodology notes

Urinary levels of bisphenol A include both conjugated and unconjugated forms and reflect recent exposure to the chemical.

Reference: CDC Biomonitoring Summary for Bisphenol A

https://www.cdc.gov/biomonitoring/BisphenolA_BiomonitoringSummary.html

History

Comparable HP2020 objective
Retained, which includes core objectives that are continuing from Healthy People 2020 with no change in measurement.
Revision History
Revised. 

In 2021, the original baseline value was revised from 5.09 ug/g to 5.30 ug/g because of a change in the baseline years and the age range of individuals included in the measurement. The same target-setting method (projection) was used but the prediction interval (PI) used to set the target was changed from the 50% PI to the 67% PI. The baseline and numerator text was also updated to reflect that these measurements include individuals 3 years and over.