Table 1. Echinococcosis-related deaths, adjusted mortality rates and rate ratios, United States, 1990–2007.

Variable	No. of deaths	Age-adjusted* mortality rate per 1,000,000 person years (95% CI)	Rate Ratio (95% CI)
All echinococcosis-related deaths	41	0.008 (0.006–0.011)
Sex
Male	26	0.012 (0.007–0.017)	2.2 (1.3–3.9)
Female	15	0.005 (0.003–0.008)	referent group
Race
Non-Hispanic white	28	0.007 (0.004–0.010)	referent group
Hispanic	7	0.014 (0.002–0.025)	1.9 (1.3–2.9)
Asian/Pacific Islander	4	0.032 (0.000–0.067)	4.6 (3.2–6.7)
Native American	2	0.062 (0.000–0.154)	8.9 (6.1–12.9)
Non-Hispanic black	0
Year
1990	5	0.021 (0.002–0.039)
1991	2	0.008 (0.000–0.020)
1992	3	0.013 (0.000–0.028)
1993	2	0.009 (0.000–0.021)
1994	5	0.020 (0.002–0.038)
1995	5	0.019 (0.002–0.035)
1996	4	0.016 (0.000–0.032)
1997	0
1998	0
1999	2	0.007 (0.000–0.018)
2000	2	0.007 (0.000–0.017)
2001	2	0.007 (0.000–0.017)
2002	5	0.018 (0.002–0.033)
2003	1	0.003 (0.000–0.010)
2004	1	0.004 (0.000–0.011)
2005	0
2006	1	0.003 (0.000–0.009)
2007	1	0.003 (0.000–0.010)
Age
<1	0
1–4	0
5–14	1	0.001 (0.000–0.004)
15–24	4	0.006 (0.000–0.011)
25–34	1	0.001 (0.000–0.004)
35–44	6	0.004 (0.001–0.007)
45–54	2	0.003 (0.000–0.007)
55–64	10	0.022 (0.009–0.036)
65–74	5	0.015 (0.002–0.028)
75–84	5	0.023 (0.003–0.044)
85+	7	0.094 (0.024–0.016)

*- for sex, race, and year.