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. 2015 Apr 24;10(4):e0122963. doi: 10.1371/journal.pone.0122963

Table 2. Nested negative binomial regression models estimating associations with Black all-cause mortality rates.

Model 1 Model 2 Model 3 Model 4
MRR (95% CI) p MRR (95% CI) P MRR (95% CI) p MRR (95% CI) p
Area racism 1.082 (1.056, 1.108) <0.001 1.076 (1.052, 1.101) <0.001 1.057 (1.034, 1.080) <0.001 1.036 (1.015, 1.057) 0.001
Urbanicity 1.000 (0.999, 1.001) 0.963 1.002 (1.001, 1.004) 0.001 1.004 (1.003, 1.005) <0.001
% Black 1.006 (1.005, 1.008) <0.001 1.007 (1.005, 1.009) <0.001 1.006 (1.004. 1.007) <0.001
Education 1.003 (0.998, 1.008) 0.199 1.001 (0.996, 1.006) 0.659
Poverty 1.012 (1.008, 1.016) <0.001 1.010 (1.006, 1.014) <0.001
White Mortality 1.046 (1.032, 1.059) <0.001
Psuedo-R2 0.309 <0.001 0.314 <0.001 0.317 <0.001 0.321 <0.001
AIC, RL 14472 <0.001 14371 <0.001 14294 <0.001 14221 <0.001
Alpha 0.025 <0.001 0.022 <0.001 0.020 <0.001 0.018 <0.001

Note: MRR = Mortality Rate Ratio; CI = confidence interval; AIC = Akaike Information Criteria; RL = Relative Likelihood.

Among ≥ 25 years of age. Race-specific age and sex-adjusted mortality rates weighted using the US 2000 standard population per 100,000 person-years from death certificates and mid-year population counts collated by the National Center for Health Statistics, 2004–2009. Area characteristics at the designated market area level from the American Community Survey, 2004–2009 for urbanicity (% living in a city with ≥ 50,000 people); % Black; education among Blacks (% with up to high school education); and poverty among Blacks (% households in poverty). All models adjusted for individual age, sex, year of death, and Census region.