Table 3.

Association between exposure scores⁵ and selected diseases

	Exposure score 0–1		Exposure score > 1
	Cases/non-cases (n)	OR (95% CI)	Cases/non-cases (n)	Crude OR (95% CI)	Adjusted OR5 (95% CI)
Allergies	14/26	1.00	35/24	2.71 (1.18–6.22)*	1.23 (0.43–3.54)
Native American	5/6	1.00	17/34	2.40 (0.64–9.00)	2.46 (0.65–9.30)
Asthma	10/30	1.00	43/21	6.14 (2.53–14.89)**	2.03 (0.64–6.41)
Native American	4/6	1.00	43/13	4.96 (1.21–20.30)*	6.16 (1.38–27.49)*
Bronchitis	5/34	1.00	33/27	8.31 (2.86–24.17)**	4.10 (1.18–14.23)*
Native American	1/9	1.00	33/19	15.63 (1.84–133.09)*	17.42 (1.99–152.45)*
Arthritis	12/28	1.00	37/24	3.60 (1.54–8.41)**	2.57 (0.80–8.23)
Native American	5/6	1.00	34/19	2.15 (0.58–7.98)	2.32 (0.58–9.31)
Heart disease	8/34	1.00	26/37	2.99 (1.19–7.49)*	1.98 (0.59–6.63)
Native American	4/7	1.00	23/31	1.30 (0.34–4.97)	1.49 (0.34–6.49)
High blood pressure	15/27	1.00	52/17	5.51 (2.39–12.70)**	2.81 (0.87–9.08)
Native American	9/2	1.00	47/13	0.80 (0.15–4.19)	0.88 (0.13–5.78)
Type 2 diabetes	7/34	1.00	18/43	2.03 (0.76–5.43)	0.72 (0.19–2.73)
Native American	5/6	1.00	17/36	0.57 (0.15–2.12)	0.54 (0.13–2.31)

^*p-value < 0.05

^**p-value < 0.01