Table 3. Proportion of Adults (Aged ≥20 y) With Overweight or Obesity, but Not Diabetes, by Number of Cardiometabolic Risk Factorsa, Age Group, and Weight Class, the PORTAL Weight Cohort, 2012–2013b , c , d .
| No. of Risk Factors, by Age Group | Total | Overweight (BMI 25.0–29.9)e | Obese (BMI ≥30.0) | Obesity Class |
||
|---|---|---|---|---|---|---|
| Class I (BMI 30.0–34.9)f | Class II (BMI 35.0–39.9) | Class III (BMI ≥40.0) | ||||
| None | ||||||
| 20–34 y | 29.2 | 40.0 | 19.5 | 25.0 | 16.4 | 10.4 |
| 35–49 y | 19.3 | 26.4 | 12.7 | 15.4 | 10.7 | 6.9 |
| 50–64 y | 12.1 | 16.4 | 7.5 | 9.0 | 5.9 | 3.9 |
| 65–79 y | 6.3 | 8.4 | 3.4 | 4.0 | 2.6 | 1.4 |
| ≥80 y | 2.8 | 3.5 | 1.4 | 1.6 | 0.9 | 0.8 |
| All | 14.3 | 18.6 | 9.6 | 11.2 | 8.1 | 5.8 |
| 1 Risk factor | ||||||
| 20–34 y | 35.0 | 36.2 | 33.9 | 35.7 | 33.7 | 30.3 |
| 35–49 y | 31.0 | 34.1 | 28.1 | 30.0 | 26.7 | 24.2 |
| 50–64 y | 28.8 | 32.6 | 24.8 | 26.4 | 23.1 | 20.6 |
| 65–79 y | 26.6 | 30.1 | 21.7 | 23.2 | 19.3 | 17.6 |
| ≥80 y | 24.9 | 26.8 | 20.3 | 20.8 | 18.6 | 18.2 |
| All | 29.5 | 32.4 | 26.2 | 27.5 | 24.8 | 23.2 |
| 2 Risk factors | ||||||
| 20–34 y | 23.3 | 17.4 | 28.5 | 25.5 | 30.2 | 33.2 |
| 35–49 y | 28.3 | 25.0 | 31.4 | 30.2 | 32.2 | 33.9 |
| 50–64 y | 32.2 | 30.5 | 34.0 | 33.6 | 33.8 | 35.9 |
| 65–79 y | 37.4 | 37.1 | 37.8 | 37.9 | 37.5 | 37.8 |
| ≥80 y | 42.2 | 42.4 | 41.8 | 42.3 | 40.5 | 37.5 |
| All | 31.7 | 30.1 | 33.5 | 33.0 | 33.6 | 35.0 |
| 3 Risk factors | ||||||
| 20–34 y | 10.3 | 5.5 | 14.6 | 11.5 | 15.8 | 20.3 |
| 35–49 y | 16.4 | 11.7 | 20.7 | 18.6 | 22.2 | 25.4 |
| 50–64 y | 19.6 | 15.7 | 23.7 | 22.2 | 25.4 | 27.1 |
| 65–79 y | 21.2 | 18.0 | 25.6 | 24.5 | 27.6 | 28.9 |
| ≥80 y | 21.7 | 20.1 | 25.3 | 24.6 | 27.0 | 31.2 |
| All | 18.1 | 14.5 | 22.1 | 20.6 | 23.6 | 25.5 |
| 4 Risk factors | ||||||
| 20–34 y | 2.2 | 0.9 | 3.5 | 2.3 | 3.9 | 5.8 |
| 35–49 y | 5.0 | 2.8 | 7.1 | 5.8 | 8.2 | 9.6 |
| 50–64 y | 7.3 | 4.8 | 10.0 | 8.8 | 11.8 | 12.5 |
| 65–79 y | 8.5 | 6.4 | 11.4 | 10.4 | 13.0 | 14.3 |
| ≥80 y | 8.4 | 7.2 | 11.2 | 10.7 | 13.0 | 12.3 |
| All | 6.4 | 4.4 | 8.7 | 7.7 | 9.9 | 10.6 |
Abbreviations: BMI, body mass index (kg/m2); HbA1c, glycated hemoglobin; HDL, high-density lipoprotein; ICD-9-CM, International Classification of Diseases, Ninth Revision, Clinical Modification; PORTAL, Patient Outcomes Research to Advance Learning.
We defined 4 dichotomized (yes/no) cardiometabolic risk factors: 1) elevated blood pressure (systolic value of ≥130 mm Hg or diastolic value of >85 mm Hg or ICD-9-CM code from 401.0 to 405.9); 2) elevated triglycerides (≥150 mg/dL or an ICD-9-CM code of 272.1); 3) low HDL cholesterol (<40 mg/dL for men and <50 mg/dL for women or an ICD-9-CM code of 272.5); and 4) prediabetes (HbA1c value of 5.7%–6.4% or a fasting glucose value of 100–125 mg/dL or an ICD-9-CM code of 790.2x). Individuals were required to have either a fasting glucose test (84.7% of the total) or an HbA1c test (40.4%).
Data source: PORTAL weight cohort (7).
All values are column percentages.
All between-group comparisons are significant at P < .001 (1-way analysis of variance) because of the large sample size.
Overweight defined as BMI of 23.0–27.4 for Asians and 25.0–29.9 for all other race/ethnicities.
Class 1 obesity defined as BMI of 27.5–34.9 for Asians and 30.0–34.9 for all other race/ethnicities.