Table 4. Comparison of detectable concentrations of urinary phthalate metabolites between bottlenose dolphins sampled in Sarasota Bay, FL, USA (2010–2019) and human reference populations (NHANES; 2009–2010, 2011–2012, 2013–2014, 2015–2016).

	Bottlenose Dolphins	NHANES 2009–2010	p3	NHANES 2011–2012	p3	NHANES 2013–2014	p3	NHANES 2015–2016	p3
MEHP			<0.05		<0.05		-		-
N	28	2,749		2,489		2,685		2,975
GM_detects1 (95% CI)	4.57 (2.37–8.80)	1.59 (1.41–1.79)		1.36 (1.25–1.49)		NA2	-	NA2	-
MEP
N	15	2,749	<0.05	2,489	<0.05	2,685	<0.05	2,975	<0.05
GM_detects1 (95% CI)	4.51 (2.77–7.34)	64.40 (58.30–71.20)		37.90 (33.00–43.50)		35.70 (32.10–39.80)		33.60 (29.30–38.40)

¹reported for dolphins with concentrations >LOD for metabolite; concentration is reported in ng/mL

²proportion <LOD was too high to calculate reliable estimate [16]

³p value evaluated based on 95% confidence interval overlap [47]