TABLE 5

Sensitivity and specificity for WHO- and NCEP-defined MetS in identifying subjects in the lowest quartile of Si and DI from the FSIGTT among nondiabetic IRAS participants, by ethnicity

Dependent variableWHO definition
NCEP definition
%95% CI%95% CI
SI, quartile 1
 All subjectsSe65.460.3–70.245.640.5–50.8§
Sp84.481.3–87.284.681.5–87.3
AROC74.965.0§
  Non-Hispanic whiteSe66.457.0–74.845.836.5–55.3
Sp86.281.8–89.984.279.8–88.3
AROC76.365.1
  BlackSe54.644.7–64.236.427.3–46.2
Sp86.079.6–91.090.284.5–94.3
AROC70.363.3*
  HispanicSe78.164.2–78.651.743.7–59.6§
Sp80.374.1–85.680.374.1–85.6
AROC76.166.0§
DI, quartile 1
 All subjectsSe52.948.1–57.742.637.9–47.3§
Sp80.476.9–83.685.682.4–88.4
AROC66.664.1
  Non-Hispanic whiteSe47.539.8–55.338.831.4–46.5*
Sp85.280.1–89.486.681.6–90.6
AROC66.462.6
  BlackSe44.435.3–53.936.127.5–45.5
Sp80.673.3–86.691.886.2–95.6
AROC62.564.0
  HispanicSe64.956.9–72.251.443.3–59.3
Sp74.567.8–80.479.973.6–85.2
AROC69.765.6
  • AROC comparison, low AIR (Si adjusted), 50.1 vs. 52.0%, P = 0.21. Se, sensitivity; Sp, specificity.

  • *

    * P < 0.05;

  • P < 0.01;

  • P < 0.001;

  • §

    § P < 0.0001 vs. the WHO definition.