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. 2018 Jan;141(1):e20170865. doi: 10.1542/peds.2017-0865

TABLE 3.

Decomposition Results From Blinder-Oaxaca Decomposition BMI z Score Difference Between White and Other Racial and/or Ethnic Groups for Individual Risk Factors, Boys and Girls: ECLS-B

Factor Boys Girls
African American Hispanic Asian American Indian African American Hispanic Asian American Indian
Βa (SE) 95% CI Lower 95% CI Upper Β (SE) 95% CI Lower 95% CI Upper Β (SE) 95% CI Lower 95% CI Upper Β (SE) 95% CI Lower 95% CI Upper Β (SE) 95% CI Lower 95% CI Upper Β (SE) 95% CI Lower 95% CI Upper Β (SE) 95% CI Lower 95% CI Upper Β (SE) 95% CI Lower 95% CI Upper
Age 0.012 (0.01) −0.008 0.032 −0.007 (0.01) −0.027 0.012 0.005 (0.01) −0.016 0.025 −0.018 (0.02) −0.050 0.015 0.006 (0.01) −0.008 0.021 0.021 (0.01) −0.010 0.014 −0.001 (0.01) −0.017 0.014 0.001 (0.01) −0.017 0.019
Socioeconomic factors
 SES −0.004 (0.03) −0.070 0.063 −0.00296 −0.150 0.002 0.016 (0.01) −0.010 0.043 −0.037 (0.04) −0.116 0.043 −0.053 (0.04) −0.123 0.017 0.017 (0.04) −0.130 0.019 0.016 (0.01) −0.012 0.044 −0.060 (0.04) −0.143 0.022
 Household food insecurity −0.001 (0.01) −0.019 0.018 0.016 (0.01) −0.014 0.045 0.000 (0.00) −0.002 0.002 0.001 (0.01) −0.021 0.023 −0.008 (0.01) −0.029 0.012 0.012 (0.01) −0.023 0.005 0.004 (0.01) −0.009 0.018 −0.028 (0.02) −0.070 0.013
 Neighborhood safety −0.006 (0.02) −0.043 0.032 −0.021 (0.02) −0.056 0.014 0.000 (0.00) −0.004 0.004 0.000 (0.00) −0.001 0.001 −0.016 (0.01) −0.039 0.008 0.008 (0.01) −0.023 0.012 −0.004 (0.01) −0.016 0.009 −0.003 (0.00) −0.013 0.006
Maternal risk factors
 Wt, kg (SE) −0.016 (0.01) −0.035 0.004 0.002 (0.01) −0.008 0.013 0.022 (0.01) −0.005 0.049 0.012 (0.01) −0.015 0.038 −0.015 (0.01) −0.034 0.004 0.004 (0.00) −0.006 0.012 0.018 (0.01) −0.008 0.045 −0.008 (0.01) −0.029 0.014
 Smoking during pregnancy 0.008 (0.01) −0.013 0.030 −0.001 (0.01) −0.023 0.022 0.003 (0.02) −0.030 0.037 −0.002 (0.01) −0.013 0.010 0.001 (0.01) −0.016 0.018 0.018 (0.02) −0.021 0.038 0.002 (0.02) −0.032 0.037 0.000 (0.00) −0.005 0.005
Early life risk factors
 Never breastfed −0.017 (0.01) −0.044 0.010 0.002 (0.00) −0.005 0.009 0.006 (0.01) −0.013 0.024 −0.006 (0.01) −0.023 0.011 −0.011 (0.02) −0.045 0.023 0.023 (0.01) −0.006 0.019 0.009 (0.01) −0.011 0.028 −0.001 (0.01) −0.014 0.011
 Early introduction of solid foods 0.000 (0.01) −0.010 0.010 0.007 (0.01) −0.006 0.02 0.024 (0.02) −0.014 0.063 −0.006 (0.01) −0.025 0.013 −0.008 (0.01) −0.026 0.009 0.009 (0.00) −0.004 0.006 0.010 (0.01) −0.014 0.035 −0.004 (0.01) −0.017 0.010
 Wt gain −0.079*** (0.03) −0.131 −0.028 −0.030 (0.02) −0.074 0.014 0.011 (0.02) −0.031 0.054 −0.026 (0.04) −0.098 0.045 −0.060*** (0.02) −0.106 −0.015 −0.0003 −0.075 0.001 0.010 (0.02) −0.024 0.044 −0.096*** (0.03) −0.163 −0.028
Early childhood risk factors
 TV viewing >2 h per d 0.003 (0.02) −0.032 0.038 −0.007 (0.01) −0.029 0.015 0.001 (0.01) −0.010 0.011 0.000 (0.01) −0.013 0.014 0.002 (0.02) −0.035 0.039 0.039 (0.01) −0.022 0.033 0.000 (0.00) −0.003 0.003 −0.001 (0.02) −0.043 0.041
 Physical inactivity −0.002 (0.01) −0.013 0.009 0.000 (0.00) −0.006 0.007 0.004 (0.01) −0.009 0.018 −0.003 (0.01) −0.019 0.013 0.002 (0.00) −0.005 0.010 0.010 (0.01) −0.005 0.017 0.014 (0.01) −0.014 0.042 0.001 (0.01) −0.010 0.011
 SSB consumption −0.012 (0.01) −0.038 0.013 −0.007 (0.01) −0.024 0.009 −0.002 (0.01) −0.012 0.009 0.002 (0.00) −0.006 0.011 0.011 (0.01) −0.014 0.035 0.035 (0.01) −0.008 0.024 −0.008 (0.01) −0.024 0.009 0.024 (0.02) −0.011 0.059
 Nonparental child care 0.001 (0.00) −0.004 0.006 0.002 (0.01) −0.009 0.013 0.000 (0.00) −0.003 0.003 −0.001 (0.00) −0.005 0.004 −0.009 (0.01) −0.022 0.005 0.005* (0.01) 0.000 0.046 −0.005 (0.01) −0.018 0.008 0.007 (0.01) −0.015 0.029
 Fruit and vegetable consumption 0.002 (0.00) −0.005 0.010 −0.003 (0.00) −0.011 0.005 −0.004 (0.01) −0.015 0.007 0.002 (0.01) −0.008 0.013 −0.001 (0.00) −0.009 0.006 0.006 (0.01) −0.013 0.008 −0.001 (0.01) −0.01 0.008 −0.009 (0.01) −0.025 0.008
 Family meals <4 per wk −0.004 (0.01) −0.029 0.021 −0.008 (0.01) −0.028 0.011 −0.014 (0.01) −0.040 0.013 −0.003 (0.01) −0.016 0.010 0.014 (0.01) −0.010 0.038 0.038 (0.01) −0.022 0.007 0.002 (0.00) −0.007 0.01 0.001 (0.01) −0.011 0.013
Total explained gap −0.113** (0.06) −0.225 −0.000 −0.129 (0.05) −0.234 −0.025 0.073* (0.04) −0.010 0.157 −0.085 (0.05) −0.191 0.022 −0.146*** (0.05) −0.235 −0.057 −0.057 (0.05) −0.145 0.038 0.067* (0.04) −0.007 0.14 −0.176*** (0.06) −0.288 −0.064
Total unexplained gap −0.063 (0.09) −0.238 0.112 −0.231** (0.09) −0.406 −0.054 0.060 (0.103) −0.142 0.261 −0.137 (0.119) −0.371 0.097 0.011 (0.086) −0.157 0.179 −0.0869 (0.08) −0.245 0.071 0.204** (0.09) 0.030 0.379 −0.231** (0.11) −0.449 −0.012
Total predicted gap −0.176** (0.08) −0.330 −0.021 −0.360*** (0.08) −0.514 −0.206 0.133 (0.11) −0.090 0.356 −0.222* (0.121) −0.459 0.016 −0.135* (0.078) −0.288 0.018 −0.140* (0.08) −0.289 0.009 0.271*** (0.09) 0.094 0.448 −0.407*** (0.11) −0.627 −0.187

The average contribution of risk factors to the explained portion of the gaps in BMI z scores between white and other race and/or ethnicity boys and girls. For example, differences in infant weight gain between white and African American boys accounted for 70.5% (–0.079 of –0.113) of the explained gap in BMI z scores between the 2 groups. CI, confidence interval.

a

Contribution to explained gap.

***

P < .01; ** P < .05; * P < .10.