Table 1.
Characteristics of the U.S. adult obese population ≥20 years of age
| Characteristics | Metabolically healthy obese (n = 816) | Metabolically abnormal obese (n = 1,937) | P value | |
|---|---|---|---|---|
| BMI (kg/m2) | 34.5 (0.2) | 36.2 (0.2) | <0.05 | |
| Age (years) | 41.6 (0.7) | 51.9 (0.5) | <0.05 | |
| Age categories | ||||
| <45 years | 64.5 (2.6) | 33.5 (1.6) | <0.05 | |
| 45-59 years | 24.0 (2.5) | 34.3 (1.4) | ||
| ≥60 years | 11.5 (1.3) | 32.1 (1.6) | ||
| Sex | Men | 40.9 (1.9) | 49.9 (1.2) | <0.05 |
| Women | 59.1 (1.9) | 50.8 (1.2) | ||
| Ethnicity | ||||
| Non-Hispanic White | 63.6 (2.7) | 73.8 (1.6) | <0.05 | |
| Non-Hispanic Black | 19.1 (1.9) | 12.2 (1.1) | ||
| Mexican American | 9.2 (1.3) | 6.7 (0.9) | ||
| Others | 8.0 (1.5) | 7.3 (1.2) | ||
| Education | ||||
| < High school | 19.5 (1.6) | 21.8 (1.3) | <0.05 | |
| High school | 25.0 (1.9) | 29.5 (1.6) | ||
| College | 55.5 (2.1) | 48.7 (1.8) | ||
| Income | ||||
| <$20,000 | 17.9 (1.5) | 23.8 (1.2) | <0.05 | |
| $20,000-44,999 | 32.8 (2.0) | 34.4 (1.9) | ||
| ≥$45,000 | 49.3 (2.3) | 41.8 (1.9) | ||
| Smoking | ||||
| Never | 55.5 (2.3) | 47.9 (1.6) | <0.05 | |
| Current | 21.3 (1.7) | 20.8 (1.4) | ||
| Past | 23.2 (2.1) | 31.4 (1.3) | ||
| Alcohol Intake | ||||
| <3 drinks per day | 63.2 (2.1) | 68.6 (1.8) | <0.05 | |
| ≥3 drinks per day | 36.8 (2.1) | 31.4 (1.8) | ||
| Recreational PA | ||||
| Inactive | 34.4 (2.0) | 42.6 (1.5) | <0.05 | |
| Somewhat Active | 20.6 (1.5) | 25.1 (1.5) | ||
| Active | 45.0 (1.8) | 32.3 (1.6) | ||
| Transportation Physical Activity | ||||
| Inactive | 76.2 (2.1) | 79.6 (1.2) | NS | |
| Somewhat Active | 23.8 (2.1) | 20.4 (1.2) | ||
| Active | - | - | ||
| Household Physical Activity | ||||
| Inactive | 30.9 (2.5) | 34.6 (1.7) | NS | |
| Somewhat Active | 39.0 (2.1) | 39.1 (1.4) | ||
| Active | 30.2 (2.2) | 26.3 (1.6) | ||
| Total Physical Activity | ||||
| Inactive | 13.9 (1.2) | 19.5 (1.3) | <0.05 | |
| Somewhat Active | 22.6 (1.9) | 30.0 (1.4) | ||
| Active | 63.5 (2.2) | 50.5 (1.8) | ||
| Change in weight from 10 y ago | ||||
| Lost ≥30 kg | 42.8 (2.4) | 16.3 (1.2) | <0.05 | |
| Lost <30 kg | 7.5 (1.1) | 13.5 (1.2) | ||
| Gained 0 - <10 kg | 13.6 (1.4) | 22.1 (1.1) | ||
| Gained 10 - <20 kg | 19.7 (1.6) | 26.4 (1.2) | ||
| Gained 20 - <30 kg | 10.0 (1.1) | 13.8 (1.1) | ||
| Gained 30 - <40 kg | 4.1 (0.7) | 4.6 (0.6) | ||
| Gained ≥40 kg | 2.4 (0.7) | 3.4 (0.5) | ||
| Change in weight since age 25 y | ||||
| Lost ≥30 kg | 17.5 (2.2) | 6.8 (0.8) | <0.05 | |
| Lost <30 kg | 6.3 (1.0) | 4.1 (0.5) | ||
| Gained 0 - <10 kg | 12.6 (1.1) | 6.9 (0.6) | ||
| Gained 10 - <20 kg | 19.6 (1.8) | 20.5 (1.3) | ||
| Gained 20 - <30 kg | 21.9 (1.9) | 27.3 (1.1) | ||
| Gained 30 - <40 kg | 13.8 (1.7) | 18.7 (1.3) | ||
| Gained ≥40 kg | 8.3 (1.2) | 15.8 (1.2) |
Mean (SEM) for continuous variables and % (SE) for categorical variables. Body Mass Index (BMI: kg/m2). Physical Activity Adherence Categories: Inactive (No reported physical activity), Somewhat active (<500 MET min/week), Active (≥500 MET min/week). Metabolically Healthy Obese (≤2 metabolic syndrome components) as defined by the Harmonized interim statement. Metabolically Abnormal Obese (≥3 metabolic syndrome components). p < 0.05, two-sided; t-test or Chi-square, as appropriate. NS (not significant). Sum of weights: 29,150,635