Table V.
Children with elevated PBFDXA |
Thin children (Low PBFDXA) |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Sex | Race-ethnicity | Measure | Prevalence | Positive predictive value |
Positive likelihood ratio |
Kappa statistic |
Prevalence | Positive predictive value |
Positive likelihood ratio |
Kappa statistic |
Boys | Overall | BMI | 0.18† | 0.75 | 14.3 | 0.70† | 0.17 | 0.41 | 3.3 | 0.28§ |
SF sum | 0.18 | 0.79 | 18.0 | 0.75† | 0.17 | 0.61 | 7.7 | 0.53§ | ||
Girls | Overall | BMI | 0.17 | 0.76 | 15.3 | 0.71 | 0.14 | 0.48 | 5.7 | 0.40§ |
SF sum | 0.17 | 0.77 | 15.7 | 0.71 | 0.14 | 0.62 | 10.0 | 0.55§ | ||
Boys | Non-Hispanic Whites | BMI | 0.16 | 0.77 | 16.8 | 0.71 | 0.16 | 0.37 | 3.6 | 0.29§ |
SF sum | 0.16 | 0.80 | 12.0 | 0.76 | 0.17 | 0.54 | 7.1 | 0.51§ | ||
Non-Hispanic Blacks | BMI | 0.19 | 0.65 | 11.0 | 0.68‡ | 0.17 | 0.71 | 4.4 | 0.29§ | |
SF sum | 0.17 | 0.75 | 17.4 | 0.77‡ | 0.24 | 0.86 | 11.2 | 0.56§ | ||
Mexican-Americans | BMI | 0.24 | 0.82 | 12.7 | 0.72 | 0.16 | 0.28 | 3.7 | 0.26§ | |
SF sum | 0.23 | 0.85 | 16.5 | 0.73 | 0.13 | 0.50 | 9.5 | 0.52§§ | ||
Girls | Non-Hispanic Whites | BMI | 0.16 | 0.80 | 19.9 | 0.73 | 0.15 | 0.47 | 5.6 | 0.41‡ |
SF sum | 0.16 | 0.79 | 18.2 | 0.73 | 0.15 | 0.59 | 9.0 | 0.55‡ | ||
Non-Hispanic Blacks | BMI | 0.26 | 0.61 | 7.5 | 0.66 | 0.10 | 0.67 | 7.6 | 0.34§ | |
SF sum | 0.24 | 0.64 | 8.9 | 0.69 | 0.13 | 0.81 | 16.0 | 0.56§ | ||
Mexican Americans | BMI | 0.17 | 0.81 | 17.8 | 0.70 | 0.13 | 0.28 | 4.8 | 0.29§ | |
SF sum | 0.16 | 0.87 | 27.3 | 0.73 | 0.12 | 0.45 | 9.8 | 0.51§ |
*Values represent various screening characteristics of BMI or the SF sum in the identification of children with elevated levels of PBFDXA (left side) or low levels of PBFDXA (right side). For example, a cross-classification of elevated levels of BMI and PBFDXA among boys (first row, top left) indicated that the positive predictive value of an elevated BMI was 0.75 with a kappa statistic of 0.70.
P-values are based on the differences between kappa statistics for BMI and the SF sum, and were calculated for each imputation using jackknife replicate weights:
P < .05;
P < .01;
P < .001.