Table 3.

ORs from logistic regressions evaluating whether education and race were associated with correctly answering environmental health knowledge questions at baseline ($n=135$).

Category	Question	Answer	$n$ (%) correct	OR (95% CI)
				Educationa (Ref: no bachelor’s degree)	Raceb (Ref: non-Black race)
Exposure	Some chemicals in people’s blood can come from spending time in an older building.	TRUE	132 (97.8)	—	—
Exposure	Even though fish is a healthy food, some fish contain high levels of chemicals, such as PCBs, that are harmful for health.	TRUE	129 (95.6)	1.7 (0.31, 13)	0.45 (0.06, 2.5)
Exposure	City people usually do not have any pesticides in their blood.	FALSE	127 (94.1)	1.6 (0.37, 8.3)	0.92 (0.2, 4.1)
Exposure	Babies in the womb are not exposed to pollution or harmful chemicals before they are born.	FALSE	124 (91.9)	0.66 (0.18, 2.4)	0.42 (0.1, 1.5)
Exposure	People can get chemicals in their blood from the dust in their home.	TRUE	115 (85.2)	1 (0.39, 2.8)	1.7 (0.64, 4.9)
Exposure	Most people do not have any industrial chemicals in their blood.	FALSE	114 (84.4)	1.5 (0.57, 4.1)	0.5 (0.18, 1.3)
Exposure	The pesticide DDT was banned years ago, so people are not exposed anymore.	FALSE	109 (80.7)	1.3 (0.52, 3.1)	0.58 (0.24, 1.4)
Exposure	The U.S. Centers for Disease Control has found many chemical contaminants in blood samples from everyone they tested.	TRUE	100 (74.1)	1.3 (0.57, 2.8)	0.57 (0.25, 1.2)
Exposure	Californians have the same levels of flame retardants in their blood as other Americans.	FALSE	82 (60.7)	1.6 (0.78, 3.5)	3.3 (1.6, 7.2)**
Exposure	Washing your hands removes germs but has no effect on a person’s exposures to harmful chemicals.	FALSE	62 (45.9)	1.1 (0.57, 2.3)	0.67 (0.33, 1.3)
Exposure	Leafy vegetables are more likely than meat, cheese, or whole milk to contain residues of long-lasting chemical contaminants.	FALSE	62 (45.9)	1.5 (0.73, 2.9)	0.7 (0.35, 1.4)
Health	Scientists have some evidence that some of the chemicals studied by the CHDS can cause cancer.	TRUE	129 (95.6)	—	—
Health	Exposure in early life to some of the chemicals tested in CHDS can affect a baby’s brain development and IQ.	TRUE	127 (94.1)	1.5 (0.33, 7.5)	0.52 (0.1, 2.3)
Health	Some chemicals from pollution, food, or everyday products can remain in a person’s body for years.	TRUE	127 (94.1)	—	—
Health	Some of the chemicals tested in CHDS can affect fertility (the ability of a man or woman to have children).	TRUE	125 (92.6)	—	—
Health	Whether or not a chemical exposure affects your health depends partly on how much you are exposed to.	TRUE	124 (91.9)	1.5 (0.43, 6.2)	0.49 (0.12, 1.8)
Health	Scientists are not sure about all the health implications of the chemicals tested by the CHDS.	TRUE	119 (88.1)	1.6 (0.54, 5)	0.68 (0.22, 2)
Health	A doctor will be able to tell me how the chemical results in MyCHDSReport will affect my health in the future.	FALSE	41 (30.4)	2.6 (1.2, 5.8)*	0.79 (0.36, 1.7)
Regulation	Some of the chemicals used in beauty products in the U.S. are banned in Europe.	TRUE	102 (75.6)	1.2 (0.52, 2.6)	2.1 (0.91, 4.9)
Regulation	Chemicals have to be tested for safety before they can be used in products in the U.S.	FALSE	32 (23.7)	3.2 (1.4, 8)**	1.6 (0.68, 3.7)

Note: *$p<0.05$, **$p<0.01$, ***$p<0.001$. —, odds ratios could not be computed because of quasi-separation in the data. CHDS, Child Health and Development Studies; CI, confidence interval; DDT, dichlorodiphenyltrichloroethane; OR, odds ratio; PCBs, polychlorinated biphenyls; Ref, reference.

^a Highest level of education was categorized into “no bachelor’s degree” (high school or less, associate degree, technical or vocational training) or “bachelor’s degree” (bachelor’s, master’s, doctoral, or professional degree).

^b Self-reported race/ethnicity was categorized as Black if the participant indicated African American/Black as one of her races in answer to a question allowing multiple response categories for race and ethnicity. Non-Black participants indicated that their race was non-Hispanic White, Hispanic, Asian, or mixed race and not Black.