Table 5.

PBB exposure and the odds of more advanced development among sons age 18–30

		Maternal PBB at enrollment (ppb)				Estimated PBB at conception (ppb)
Developmental Outcome*	N	≤1	1 – 3.5	>3.5	P value	≤1	1 – 3.1	>3.1	P value
Taller compared to peers at age 11	212	REF	0.78 (0.40–1.46)	0.45 (0.24–0.86)	0.05	REF	1.33 (0.71–2.49)	0.70 (0.37–1.31)	0.12
Heavier compared to peers at age 11	212	REF	1.14 (0.62–2.11)	0.56 (0.30–1.05)	0.07	REF	1.04 (0.56–1.95)	0.49 (0.26–0.93)	0.04
Reported a growth spurt (yes/no)	205	REF	0.89 (0.38–2.10)	0.56 (0.25–1.25)	0.32	REF	0.97 (0.40–2.36)	0.53 (0.23–1.21)	0.20
Relative to peers, later growth spurt	167	REF	0.82 (0.40–1.67)	1.07 (0.51–2.23)	0.77	REF	0.65 (0.31–1.35)	0.99 (0.47–2.11)	0.42

^*These developmental outcomes were modeled with ordinal regression