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Table 1

Empirically derived cut points and associated discrimination performance statistics for metabolic syndrome components by demographic subgroups

OverallWhite men (aged <65 years)White women (aged <65 years)Black men (aged <65 years)Black women (aged <65 years)White men (aged ≥65 years)White women (aged ≥65 years)Black men (aged ≥65 years)Black women (aged ≥65 years)
N 20,581 5,720 6,577 1,332 2,198 1,667 2,443 238 406 
Systolic blood pressure (excluding those taking antihypertensive medication)          
N 14,543 4,556 5,022 889 1,197 1,064 1,526 133 156 
 Optimal cut point (mmHg) 125 120 120 125 130 130 135 140 140 
 Sensitivity 0.62 0.59 0.56 0.72 0.62 0.69 0.56 0.48 0.60 
 Specificity 0.64 0.57 0.64 0.56 0.71 0.51 0.62 0.67 0.69 
Diastolic blood pressure (excluding those taking antihypertensive medication)          
N 14,543 4,556 5,022 889 1,197 1,064 1,526 133 156 
 Optimal cut point (mmHg) 75 75 70 80 75 75 70 75 75 
 Sensitivity 0.47 0.54 0.60 0.62 0.55 0.43 0.46 0.57 0.48 
 Specificity 0.62 0.56 0.52 0.55 0.51 0.65 0.57 0.50 0.62 
Glucose (excluding patients with diabetes)          
 N 18,479 5,254 6,129 1,151 1,840 1,410 2,193 186 316 
 Optimal cut point (mmol/L) 5.6 5.6 5.3 5.6 5.6 5.6 5.3 5.6 5.3 
 Sensitivity 0.45 0.51 0.56 0.44 0.46 0.52 0.62 0.46 0.51 
 Specificity 0.63 0.57 0.53 0.56 0.60 0.53 0.43 0.58 0.37 
Triglycerides (excluding those on cholesterol-lowering medication)          
 N 19,939 5,541 6,373 1,320 2,161 1,606 2,330 229 379 
 Optimal cut point (mmol/L) 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 
 Sensitivity 0.50 0.59 0.59 0.38 0.39 0.51 0.50 0.28 0.31 
 Specificity 0.61 0.54 0.65 0.68 0.72 0.56 0.53 0.69 0.66 
HDL cholesterol          
 Optimal cut point (mmol/L) 1.3 1.0 1.4 1.2 1.4 1.2 1.4 1.3 1.6 
 Sensitivity 0.58 0.57 0.73 0.48 0.64 0.51 0.47 0.40 0.55 
 Specificity 0.51 0.56 0.51 0.58 0.52 0.55 0.58 0.50 0.49 
Waist circumference          
 Optimal cut point (cm) 96 98 96 96 98 98 92 96 100 
 Sensitivity 0.55 0.59 0.53 0.56 0.62 0.49 0.46 0.49 0.54 
 Specificity 0.55 0.51 0.68 0.53 0.51 0.55 0.59 0.42 0.58 
OverallWhite men (aged <65 years)White women (aged <65 years)Black men (aged <65 years)Black women (aged <65 years)White men (aged ≥65 years)White women (aged ≥65 years)Black men (aged ≥65 years)Black women (aged ≥65 years)
N 20,581 5,720 6,577 1,332 2,198 1,667 2,443 238 406 
Systolic blood pressure (excluding those taking antihypertensive medication)          
N 14,543 4,556 5,022 889 1,197 1,064 1,526 133 156 
 Optimal cut point (mmHg) 125 120 120 125 130 130 135 140 140 
 Sensitivity 0.62 0.59 0.56 0.72 0.62 0.69 0.56 0.48 0.60 
 Specificity 0.64 0.57 0.64 0.56 0.71 0.51 0.62 0.67 0.69 
Diastolic blood pressure (excluding those taking antihypertensive medication)          
N 14,543 4,556 5,022 889 1,197 1,064 1,526 133 156 
 Optimal cut point (mmHg) 75 75 70 80 75 75 70 75 75 
 Sensitivity 0.47 0.54 0.60 0.62 0.55 0.43 0.46 0.57 0.48 
 Specificity 0.62 0.56 0.52 0.55 0.51 0.65 0.57 0.50 0.62 
Glucose (excluding patients with diabetes)          
 N 18,479 5,254 6,129 1,151 1,840 1,410 2,193 186 316 
 Optimal cut point (mmol/L) 5.6 5.6 5.3 5.6 5.6 5.6 5.3 5.6 5.3 
 Sensitivity 0.45 0.51 0.56 0.44 0.46 0.52 0.62 0.46 0.51 
 Specificity 0.63 0.57 0.53 0.56 0.60 0.53 0.43 0.58 0.37 
Triglycerides (excluding those on cholesterol-lowering medication)          
 N 19,939 5,541 6,373 1,320 2,161 1,606 2,330 229 379 
 Optimal cut point (mmol/L) 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 
 Sensitivity 0.50 0.59 0.59 0.38 0.39 0.51 0.50 0.28 0.31 
 Specificity 0.61 0.54 0.65 0.68 0.72 0.56 0.53 0.69 0.66 
HDL cholesterol          
 Optimal cut point (mmol/L) 1.3 1.0 1.4 1.2 1.4 1.2 1.4 1.3 1.6 
 Sensitivity 0.58 0.57 0.73 0.48 0.64 0.51 0.47 0.40 0.55 
 Specificity 0.51 0.56 0.51 0.58 0.52 0.55 0.58 0.50 0.49 
Waist circumference          
 Optimal cut point (cm) 96 98 96 96 98 98 92 96 100 
 Sensitivity 0.55 0.59 0.53 0.56 0.62 0.49 0.46 0.49 0.54 
 Specificity 0.55 0.51 0.68 0.53 0.51 0.55 0.59 0.42 0.58 
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