Table 4.

Crude odds ratio (OR) and confidence intervals (95% CI) obtained from bivariate logistic regression for 306 health sciences students of Haramaya University, 2011

Demographic variables, sources of information, and climate change/health impacts	Knows about climate change	Climate change has an impact on human health	Climate change is a serious threat to human health	Is your department concerned about the prevention of health impacts of climate change?
	OR(95% CI)	OR(95% CI)	OR(95% CI)	OR(95% CI)
Sex of the respondents
Male	0.8(0.5–1.4)	1.7(0.9–3.3)	1.0(0.6–1.7)	1.6(0.9–2.6)
Female	1	1	1	1
Do you know about climate change?
Yes		14.1(5.1–38.6)*	16.8(8.8–32.1)*	7.3(2.8–18.8)*
No	1	1	1	1
Study year:
First	0.9(0.4–2.3)	2.9(1.0–8.3)	0.9(0.3–2.1)	1.2(0.5–2.9)
Second	1.2(0.5–3.0)	1.8(0.7–4.8)	1.5(0.6–4.0)	1.2(0.5–3.0)
Third	0.8(0.3–2.2)	1.8(0.6–5.2)	0.6(0.2–1.6)	1.3(0.5–3.4)
Fourth	1	1	1	1
Source of information
Electronic mass media	-	2.9(1.2–2.2)*	1.5(0.5–4.2)	4.3(1.6–11.7)*
School	-	3.2(1.0–10.3)	7.3(0.8–62.1)	9.7(3.2–28.9)*
Friends or neighbors		5.1(0.6–44.0)	1.1(0.2–6.1)	2.6(0.6–11.3)
Newspaper	1	1	1	1

*Statistically significance at 0.5 level.