Table 4. Cut-Off Points, Sensitivity and Specificity for BMI, WC and WHtR Predictive of Cardiovascular Disease Risk Factors.
| a. Optimal Cut-Off Points for BMI, WC and WHtR Predictive of CVD Risk Factors | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Body Mass Index (BMI) | Waist Circumference (WC) | Waist-Height Ratio (WHtR) | |||||||
| Cut-off (kg/m2) | Sensitivity (%) | Specificity (%) | Cut-off (cm) | Sensitivity (%) | Specificity (%) | Cut-off | Sensitivity (%) | Specificity (%) | |
| Male (n = 415) | |||||||||
| Diabetes mellitus | 23.9 | 69.0 | 56.5 | 88.5 | 69.0 | 69.2 | 0.491 | 96.6 | 49.7 |
| Hypertension | 23.8 | 66.7 | 60.5 | 84.5 | 72.1 | 56.9 | 0.501 | 67.6 | 61.8 |
| High Total Cholesterol | 23.5 | 67.3 | 58.1 | 86.5 | 60.7 | 65.6 | 0.479 | 83.2 | 46.1 |
| High Triglyceride | 23.7 | 82.4 | 55.9 | 88.5 | 70.6 | 69.8 | 0.492 | 82.4 | 51.4 |
| Low HDL-Cholesterol | 23.5 | 83.7 | 53.8 | 88.5 | 67.4 | 70.4 | 0.491 | 90.7 | 50.8 |
| High LDL-Cholesterol | 23.5 | 67.6 | 58.1 | 86.5 | 60.0 | 65.2 | 0.479 | 83.8 | 46.1 |
| Female (n = 1476) | |||||||||
| Diabetes mellitus | 27.1 | 49.2 | 85.5 | 82.5 | 72.3 | 76.8 | 0.513 | 80.0 | 72.3 |
| Hypertension | 27.7 | 41.1 | 42.5 | 83.5 | 61.6 | 81.5 | 0.531 | 61.0 | 81.6 |
| High Total Cholesterol | 23.6 | 53.2 | 67.0 | 79.5 | 53.2 | 70.4 | 0.460 | 75.9 | 48.5 |
| High Triglyceride | 25.6 | 76.3 | 78.4 | 83.5 | 76.3 | 78.7 | 0.523 | 81.6 | 75.7 |
| Low HDL-Cholesterol | 26.1 | 75.9 | 80.1 | 78.8 | 79.3 | 63.3 | 0.497 | 79.3 | 62.8 |
| High LDL-Cholesterol | 23.5 | 57.6 | 66.5 | 79.5 | 60.0 | 70.9 | 0.499 | 61.6 | 68.7 |
| b. Sensitivity and Specificity for BMI, WC and WHtR Predictive of CVD Risk Factors Based On Established/Proposed Cut-Off Points* | |||||||||
| Body Mass Index (BMI) | Waist Circumference (WC) | Waist-Height Ratio (WHtR) | |||||||
| Cut-off (kg/m 2 ) | Sensitivity (%) | Specificity (%) | Cut-off (cm) | Sensitivity (%) | Specificity (%) | Cut-off | Sensitivity (%) | Specificity (%) | |
| Male (n = 415) | |||||||||
| Diabetes mellitus | 27.5 | 24.1 | 82.1 | 90 | 62.1 | 72.8 | 0.501 | 79.3 | 56.5 |
| Hypertension | 27.5 | 31.5 | 86.5 | 90 | 44.1 | 75.7 | 0.501 | 67.6 | 61.8 |
| High Total Cholesterol | 27.5 | 26.2 | 84.4 | 90 | 42.1 | 74.7 | 0.501 | 63.6 | 60.1 |
| High Triglyceride | 27.5 | 41.2 | 83.7 | 90 | 61.8 | 73.2 | 0.501 | 76.5 | 56.7 |
| Low HDL-Cholesterol | 27.5 | 44.2 | 84.7 | 90 | 95.3 | 33.6 | 0.501 | 76.7 | 57.5 |
| High LDL-Cholesterol | 27.5 | 25.7 | 84.2 | 90 | 85.7 | 36.1 | 0.501 | 64.8 | 60.3 |
| Female (n = 1476) | |||||||||
| Diabetes mellitus | 27.5 | 43.1 | 87.6 | 80 | 80.0 | 67.8 | 0.499 | 84.6 | 65.8 |
| Hypertension | 27.5 | 44.5 | 89.6 | 80 | 69.2 | 69.5 | 0.499 | 72.6 | 67.5 |
| High Total Cholesterol | 27.5 | 22.7 | 88.5 | 80 | 53.2 | 70.4 | 0.499 | 55.6 | 68.3 |
| High Triglyceride | 27.5 | 42.1 | 87.0 | 80 | 84.2 | 67.0 | 0.499 | 84.2 | 64.8 |
| Low HDL-Cholesterol | 27.5 | 34.5 | 86.7 | 80 | 75.9 | 33.5 | 0.499 | 72.4 | 64.3 |
| High LDL-Cholesterol | 27.5 | 25.2 | 88.6 | 80 | 60.0 | 70.9 | 0.499 | 61.6 | 68.7 |
*BMI ≥27.5 kg/m2 (High Risk Category, Obesity equivalent for Asians)
WC ≥80cm for females, WC ≥90cm for males (Asian Cut-Offs); WHtR ≥0.5 (Proposed Cut Off)
HDL, high-density lipoprotein; LDL, low-density lipoprotein.