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. Author manuscript; available in PMC: 2015 Jun 2.
Published in final edited form as: Pediatrics. 2012 Nov 12;130(6):e1447–e1454. doi: 10.1542/peds.2012-1107

TABLE 3.

aHRs of Offspring Being Diagnosed With ASD or Infantile Autism, Specifically After Self-Reported Infection During Pregnancy

Type of Infection ASD
Infantile Autism
No. Exposed ASD/Non-ASD Crude HR (95% CI) aHRa (95% CI) No. Exposed Infantile Autism/Non–Infantile Autism aHRa (95% CI)
Pyelonephritis 9/426 2.1 (1.1–4.0) 1.8 (0.9–3.9) 4/431 NE
Cystitis 123/11 244 1.1 (0.9–1.3) 1.1 (0.9–1.3) 49/11 318 1.2 (0.9–1.7)
Respiratory tract infection 70/7322 0.9 (0.7–1.2) 1.0 (0.7–1.3) 32/7360 1.2 (0.8–1.8)
Influenza 9/799 1.1 (0.6–2.1) 1.1 (0.6–2.3) 7/801 2.3 (1.0–5.3)
Coughb 150/13 862 1.1 (0.9–1.3) 1.0 (0.8–1.2) 53/13 959 1.1 (0.8–1.5)
Vaginal yeast infection 194/17 946 1.1 (0.9–1.3) 1.2 (1.0–1.4) 56/18 084 0.9 (0.7–1.3)
Treatment of yeast infectionc 139/12 646 1.1 (0.9–1.3) 1.2 (1.0–1.4) 35/12 750 0.8 (0.6–1.2)
Venereal wartsb 12/788 1.5 (0.9–2.6) 1.6 (0.9–2.8) 2/798 NE
Genital herpesb 14/1372 1.0 (0.6–1.7) 0.7 (0.4–1.4) 5/1381 0.9 (0.3–1.5)
Labial herpesb 105/10 794 1.0 (0.8–1.2) 1.0 (0.8–1.2) 37/10 862 1.0 (0.7–1.5)

NE, not estimated due to limited number of exposed cases (<5).

a

Adjusted for maternal age, paternal age, maternal smoking during pregnancy, parity, gender, parents’ educational status, and the parents’ psychiatric condition. Data were analyzed in strata according to year of birth.

b

Data included only information until week 32 in pregnancy.

c

Treatment includes suppository, tablets, and cream.