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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: Am J Psychiatry. 2018 Aug 16;175(11):1094–1101. doi: 10.1176/appi.ajp.2018.17101129

Table 3:

Association between maternal persistent organic pollutant (POP) levels and autism among offspring
Unadjusted Adjusted2
Persistent organic pollutants (POPs) Cases N (%) Controls N (%) OR (95% CI) P OR (95% CI) P
p,p’-DDE
>75th percentile 239 (30.7) 194 (24.9) 1.41 (1.11–1.80) 0.01 1.32 (1.02–1.71) 0.03
Total PCBs1
>75th percentile 202 (26.0) 194 (24.9) 1.06 (0.84–1.35) 0.62 0.95 (0.73–1.24) 0.69
1

Sum of concentrations of 10 congeners measured (see Table 2)

2

Adjusted for maternal age, maternal parity, and maternal history of psychiatric disorder (see definition in Table 1)