Using extended concentration and achievement indices to study socioeconomic inequality in chronic childhood malnutrition: the case of Nigeria

Table 2 Extended concentration indices and standard errors of childhood malnutrition by maternal education, regions, ethnicity, type of residence, and sex of infant, Nigeria 2003

	Extended Concentration Index
Variable	C [SE] (2)	C [SE] (3)	C [SE] (4)	C [SE](5)
Maternal education
No education	-0.036(0.016)***	-0.0441(0.025)	-0.048 (0.032)	-0.051(0.036)
Primary education	-0.093(0.022)***	-0.132(0.036)***	-0.150 (0.049)**	-0.160(0.051)**
Secondary or higher	-0.200(0.028)***	-0.287(0.046)***	-0.348(0.057)***	-0.395(0.072)***
Region
North central	-0.133(0.030)***	-0.187(0.042)***	-0.212(0.051)***	-0.223(0.061)***
North east	-0.102(0.024)***	-0.142(0.040)***	-0.165(0.050)**	-0.181(0.060)**
North west	-0.065(0.017)***	-0.080(0.029)**	-0.089(0.035)*	-0.097(0.039)*
South east	-0.191(0.039)***	-0.332(0.061)***	-0.446(0.080)***	-0.538(0.099)***
South south	-0.251(0.053)***	-0.349(0.090)***	-0.391(0.118)**	-0.411(0.146)**
South west	-0.288(0.039)***	-0.427(0.067)***	-0.516(0.094)***	-0.579(0.106)***
Type of residence
Urban	-0.180(0.021)***	-0.267(0.038)***	-0.326(0.051)***	-0.373(0.057)***
Rural	-0.087(0.018)***	-0.108(0.027)***	-0.117(0.033)**	-0.121(0.038)**
Ethnicity
Hausa/Fulani	-0.047 (0.015)**	-0.062 (0.021)**	-0.071(0.030)*	-0.079(0.034)*
Igbo	-0.275(0.038)***	-0.465(0.059)***	-0.607(0.072)***	-0.719(0.092)***
Yoruba	-0.222(0.041)***	-0.326(0.065)***	-0.399(0.088)***	-0.459(0.105)***
Others	-0.162(0.020)***	-0.220(0.034)***	-0.251(0.044)***	-0.272(0.057)***
Child's sex
Male	-0.146(0.016)***	-0.200(0.026)***	-0.227(0.033)***	-0.242(0.038)***
Female	-0.148(0.017)***	-0.197(0.028)***	-0.219(0.038)***	-0.230(0.044)***
Overall	-0.147(0.013)***	-0.199(0.022)***	-0.223(0.028)***	-0.236(0.034)***

The * for p < .05, ** for p < .01, and *** for p < .001 (based upon bootstrapped standard errors).

ISSN: 1475-9276