Figure. Association Between Prenatal Creatinine Adjusted Phthalate Metabolite Levels and Language Delay in Children in the Swedish Environmental Longitudinal Mother and Child, Asthma and Allergy (SELMA) Study.

Language delay risk increased with monobenzyl phthalate (MBzP) exposure (A) and monobutyl phthalate (MPB) exposure (B), although the trend was not significant (MBzP, P = .09; MBP, P = .07). An adjusted odds ratio (AOR) of approximately 2.0 in the fourth quartile doubles the odds of language delay from the first quartile.

^aFirst quartile is the reference and was adjusted for creatinine level; sex; premature birth; mother’s educational level; and mother’s smoking status and weight at study enrollment.