From: Prenatal mercury exposure and features of autism: a prospective population study
Proxy for Hg exposurea | Diagnosed autism, OR [95% CI] | Autistic trait, OR [95% CI] | |||
---|---|---|---|---|---|
Poor social cognition | Poor sociability | Poor coherence | Repetitive behavior | ||
White fish | 1.39 [0.80, 2.40] | 0.85 [0.71 ,1.03] | 0.93 [0.77, 1.11] | 0.90 [0.78, 1.04] | 1.01 [0.88, 1.16] |
 | (P = 0.238) | (P = 0.092) | (P = 0.399) | (P = 0.163) | (P = 0.886) |
Oily fish | 1.00 [0.68, 1.47] | 0.98 [0.84, 1.14] | 0.90 [0.78, 1.04] | 1.01 [0.90, 1.14] | 1.03 [0.92, 1.15] |
 | (P = 0.994) | (P = 0.774) | (P = 0.150) | (P = 0.853) | (P = 0.613) |
Shellfish | 0.86 [0.54, 1.38] | 0.92 [0.77, 1.11] | 0.91 [0.76, 1.08] | 0.94 [0.81, 1.08] | 1.03 [0.90, 1.17] |
 | (P = 0.542) | (P = 0.401) | (P = 0.284) | (P = 0.351) | (P = 0.707) |
Amalgam inserted | 0.62 [0.37, 1.03] | 0.99 [0.83, 1.18] | 1.14 [0.97, 1.34] | 1.07 [0.94, 1.22] | 1.02 [0.90, 1.16] |
 | (P = 0.067) | (P = 0.905) | (P = 0.119) | (P = 0.320) | (P = 0.761) |
Amalgam extracted | 0.47 [0.24, 0.93] | 1.09 [0.89, 1.33] | 1.14 [0.94, 1.38] | 1.10 [0.94, 1.28] | 1.04 [0.89, 1.20] |
 | (P = 0.031) | (P = 0.424) | (P = 0.178) | (P = 0.237) | (P = 0.647) |
No. of amalgam fillings | 0.96 [0.76, 1.21] | 1.00 [0.91, 1.09] | 0.91 [0.84, 0.99] | 1.01 [0.94, 1.09] | 0.95 [0.89, 1.01] |
 | (P = 0.730) | (P = 0.965) | (P = 0.033) | (P = 0.790) | (P = 0.122) |
No. in analyses | 7498–10,452 | 5888–6972 | 7119–8512 | 5646–6690 | 6302–7477 |