Perinatal urinary benzophenone-3 concentrations and glucose levels among women from a fertility clinic

Table 2 Time-specific distribution of urinary BP-3 concentrations (ng/mL) during the perinatal period for 217 women in the EARTH Study

	N^a	Detection %	Geometric mean (95% CI)	Percentile
	N^a	Detection %	Geometric mean (95% CI)	Min	25th	50th	75th	90th	95th	Max
Urine samples collected during preconception (mean preconception BP-3 exposure for each participant)
BP-3	178	99.6%	131.6 (102.5, 168.9)	<LOD	50.4	118.3	431.3	1318.3	2469.3	9000.0
SG-adjusted BP-3	178	99.6%	166.6 (130.1, 213.4)	<LOD	58.7	153.6	494.5	1710.3	2370.2	8313.8
Urine samples collected during the first trimester (one sample per participant)
BP-3	194	99.5%	106.4 (81.7, 138.6)	<LOD	29.8	78.5	364.7	1304.2	3397.7	9115.3
SG-adjusted BP-3	194	99.5%	142.4 (109.5, 185.2)	<LOD	39.0	124.6	500.3	1710.2	3818.3	7888.0
Urine samples collected during the second trimester (one sample per participant)
BP-3	170	98.8%	132.4 (95.8, 182.9)	<LOD	33.0	130.9	667.0	1990.0	4577.2	21,728.9
SG-adjusted BP-3	170	98.8%	189.1 (139.4, 256.5)	<LOD	40.1	169.1	811.8	2960.5	5358.2	17,383.1

Abbreviations: BP-3 benzophenone-3, LOD limit of detection (0.4 ng/ml for some years and 0.2 ng/ml for other years)
For concentrations below the LOD: concentrations were assigned a value equal to the LOD divided by square root of 2 for the calculation of geometric means
^a Number of participants

ISSN: 1476-069X