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. Author manuscript; available in PMC: 2016 Feb 2.
Published in final edited form as: Brain Behav Immun. 2014 Sep 16;44:100–105. doi: 10.1016/j.bbi.2014.09.001

Table 5.

Sensitivity of model results to unobserved confounding at specified parameter levels.

Increase in risk of
ASD on account of
unmeasured
confounder* 		Prevalence of
unmeasured
confounder in
exposed		 Prevalence of
unmeasured
confounder in
unexposed		 Adjusted OR (95%
CI)
- 0 0 1.37 (1.28, 1.47)**
Doubled 10% 5% 1.31 (1.22, 1.40)
Doubled 20% 5% 1.20 (1.12, 1.29)
Doubled 30% 10% 1.16 (1.08, 1.24)
Doubled 40% 10% 1.08 (1.01, 1.16)
Doubled 50% 5% 0.96 (0.90, 1.03)
Tripled 10% 5% 1.26 (1.17, 1.35)
Tripled 20% 5% 1.08 (1.01, 1.16)
Tripled 30% 10% 1.03 (0.96, 1.10)
Tripled 40% 10% 0.91 (0.85, 0.98)
Tripled 50% 5% 0.75 (0.70, 0.81)
*

assuming that the elevated risk of ASD due to U is consistent in both the exposed and the unexposed

**

the original Table 2, Study 1 estimate of the OR for hospitalization with infection during pregnancy and risk of ASD in the total Swedish population