TABLE 2

Sample-Weighted Percentiles of BLLs (μg/dL) for US Children (NHANES 2011–2014)

NHANES, ySample Size, nSelected Percentiles (95% Confidence Intervals)
50th75th90th95th97.5th
2011–2012
 1–5 y7130.95 (0.87–1.04)1.34 (1.2–1.66)2.26 (1.88–2.65)2.91 (2.41–3.83)3.83 (2.53–6.43)a
2013–2014
 1–5 y8180.74 (0.68–0.80)1.08 (0.94–1.24)1.58 (1.33–1.90)2.24 (1.68–2.64)2.80 (2.31–3.93)a
2011–2014
 1–5 y15310.82 (0.75–0.89)1.21 (1.09–1.32)1.90 (1.64–2.24)2.57 (2.26–3.05)3.48 (2.65–4.29)a
  • a n = 19, 32, and 46, respectively, for sample sizes for the 97.5th percentile in NHANES 2011–2012, 2013–2014, and 2011–2014.