Table 5 

Subpopulation specific racial effect (relative risk) of infant mortality # decomposed into direct and indirect multiplicative factors 

Racial Effect 
Females 
Males 





estimate 
LCI UCI 
estimate 
LCI UCI 

"Normal" Subpopulation 

Relative Risk 
1.89 
(1.71; 2.14) 
1.77 
(1.63; 1.98) 
Direct Factor 
2.11 
(1.87; 2.49) 
2.00 
(1.71; 2.68) 
Indirect Factor 
0.89 
(0.78; 1.01)* 
0.88 
(0.71; 1.00)* 
"Compromised" Subpopulation 

Relative Risk 
5.19 
(4.29; 6.16) 
5.12 
(4.37; 6.08) 
Direct Factor 
0.18 
(0.01; 0.69) 
0.43 
(0.11; 1.55)* 
Indirect Factor 
29.38 
(13.83; 91.15) 
11.80 
(4.31; 33.46) 
Total Birth Cohort 

Relative Risk 
3.10 
(2.83; 3.41) 
3.09 
(2.89; 3.37) 


^{#}: mortalities are calculated by the method of direct standardization using European American births as the reference (standard) population LCI = lower 95% confidence interval; UCI = upper 95% confidence interval *: relative risk or factor is not significantly different from 1 based on the biasadjusted 95% CI 

Gage et al. BMC Pregnancy and Childbirth 2010 10:86 doi:10.1186/147123931086 