. Author manuscript; available in PMC: 2017 Jul 1.

Published in final edited form as: Environ Int. 2015 Dec 13;92-93:597–604. doi: 10.1016/j.envint.2015.10.011

Table 1. Characteristics and Risks of Bias of Included Studies by Sponsorship Source (n=51).

Characteristic	Category	Sponsorship Source
Characteristic	Category	Any Industry (N =12)	Non-Industry (N =29)	No Disclosure (N =10)
Risk of Bias³	Randomization	6	15	5
	Concealment of allocation	0	0	0
	Blinded outcome assessment	4	4	0
	Inclusion/exclusion criteria	0	2	0
	Sample size calculation	0	0	0
	Test animal description	12	29	10
	Animal environment described	12	29	9
	Exposure levels justified	4	19	5
	Optimal time window investigated	1	0	0
	All animals accounted for	2	3	2
	Compliant with animal welfare requirements	7	16	3
Financial conflict of interest	Yes	1	0	0
	No	4	4	1
	No disclosure	7	25	9
Author affiliation	Combined	3	1	1
	Non-industry employed	9	28	8
	Industry	0	0	1