Table 12. Demographic Characteristics of the "Lie Down and Be Counted" (LDBC) Population Sample to Date Characteristic LDBC  (amargin of error) bCEMRC, 1998 cCensus, 1990 Gender Male  60.7% (54.8 to 66.5%) 34.9% 48.0% Female 39.3% (33.5 to 45.2%) 64.7% 52.0%         Ethnicity Hispanic  14.0% (9.9 to 18.0%) 9.7% 33.4% Non-Hispanic 82.7% (78.3 to 87.1%) 83.2% 63.0% Other 3.3% (1.5 to 6.6%) 7.1% 3.6%         Age 60 or older   25.7% (20.6 to 30.9%) 44.3% 33.7%           Currently or previously classified as a radiation worker   4.0% (1.5 to 6.3%) 6.9% dNA           Consumption of wild game within last 3 months   16.9% (12.5 to 21.3%) 21.6% NA           Medical treatment, other than x-rays, using radionuclides    8.5% (5.1 to 11.8%) 4.0% NA           European travel within the last 2 years   4.4% (1.8 to 6.6%) NA NA           Current smoker   14.0% (9.9 to 18.0%) 25.0% NA aThe margin of error represents the 95% confidence interval of the observed proportion. Under complete replication of this experiment, one would expect the confidence interval to include the true population proportion 95% of the time if the sample was representative of the true population. bRespondent demographics and lifestyle characteristics identified in the community study reported in "Survey of Factors Related to Radiation Exposure and Perceptions of Environmental Risks in Carlsbad, Loving, Malaga and Hobbs, New Mexico." cUnited States Department of Commerce, Economics and Statistics Administration, Bureau of the Census. 1990 Census of Population. Washington, DC: US Government Printing Office. dNA = not available