Table 1. Characteristics of a Sample of Adults (Aged ≥20 y) With Overweight or Obesity, but Not Diabetes, by Overweight or Obesity Class, the PORTAL Weight Cohort, 2012–2013a , b .
| Characteristic | Total | Overweight (BMI 25.0–29.9)c | Obese (BMI ≥30.0) | Obesity Class |
||
|---|---|---|---|---|---|---|
| Class I (BMI 30.0–34.9)d | Class II (BMI 35.0–39.9) | Class III (BMI ≥40.0) | ||||
| No. (%) | 1,294,174 (100) | 679,034 (52.5) | 615,140 (47.5) | 371,939 (28.7) | 149,517 (11.6) | 93,684 (7.2) |
| Mean age (SD), y | 54.0 (15.0) | 55.5 (15.3) | 52.4 (14.5) | 53.7 (14.5) | 51.5 (14.3) | 48.4 (14.0) |
| Age group, % | ||||||
| 20–34 y | 11.3 | 10.2 | 12.5 | 10.6 | 13.5 | 18.4 |
| 35–49 y | 26.5 | 24.3 | 29.0 | 27.4 | 30.0 | 33.7 |
| 50–64 y | 36.4 | 35.9 | 36.9 | 37.6 | 36.9 | 34.2 |
| 65–79 y | 21.7 | 24.1 | 19.0 | 21.1 | 17.6 | 12.8 |
| ≥80 y | 4.2 | 5.6 | 2.6 | 3.3 | 1.9 | 0.9 |
| Sex | ||||||
| Male | 49.7 | 53.6 | 45.4 | 50.3 | 41.1 | 32.6 |
| Female | 50.3 | 46.4 | 54.6 | 49.7 | 58.9 | 67.4 |
| Race/ethnicity | ||||||
| Non-Hispanic white | 49.2 | 49.2 | 48.9 | 49.1 | 49.1 | 47.7 |
| Non-Hispanic black | 11.2 | 8.8 | 13.9 | 12.0 | 15.0 | 19.5 |
| Hispanic | 24.5 | 22.6 | 26.6 | 26.9 | 26.7 | 25.1 |
| Asian | 9.2 | 13.1 | 4.8 | 6.1 | 3.5 | 2.0 |
| Hawaiian/Pacific Islander | 0.9 | 1.0 | 0.9 | 0.8 | 0.9 | 1.1 |
| American Indian/Alaska Native | 0.5 | 0.4 | 0.6 | 0.5 | 0.6 | 0.7 |
| Systolic blood pressure, mm Hg | ||||||
| Unadjusted mean (SD) | 126 (15) | 125 (15) | 128 (15) | 127 (15) | 128 (14) | 130 (15) |
| Age-adjusted mean (SE) | 116 (0.05) | 111 (0.07) | 119 (0.07) | 116 (0.09) | 119 (0.14) | 123 (0.17) |
| Median (IQR) | 126 (19) | 124 (20) | 128 (18) | 126 (19) | 128 (17) | 130 (18) |
| Diastolic blood pressure, mm Hg | ||||||
| Unadjusted mean (SD) | 74 (10) | 73 (10) | 76 (10) | 75 (10) | 76 (10) | 77 (11) |
| Age-adjusted mean (SE) | 78 (0.03) | 75 (0.05) | 79 (0.05) | 79 (0.06) | 80 (0.10) | 81 (0.12) |
| Median (IQR) | 74 (13) | 73 (13) | 76 (13) | 75 (13) | 76 (12) | 77 (13) |
| Triglycerides, mg/dL | ||||||
| Unadjusted mean (SD) | 137 (81) | 130 (78) | 144 (83) | 145 (85) | 147 (83) | 139 (75) |
| Age-adjusted mean (SE) | 141 (0.27) | 128 (0.36) | 150 (0.40) | 153 (0.54) | 152 (0.80) | 139 (0.88) |
| Median (IQR) | 117 (82) | 110 (77) | 125 (85) | 124 (87) | 127 (86) | 122 (78) |
| High-density lipoprotein cholesterol, mg/dL | ||||||
| Unadjusted mean (SD) | 51 (13) | 53 (14) | 49 (13) | 49 (13) | 48 (12) | 48 (12) |
| Age-adjusted mean (SE) | 44 (0.04) | 48 (0.06) | 42 (0.06) | 43 (0.08) | 41 (0.12) | 39 (0.14) |
| Median (IQR) | 49 (17) | 50 (17) | 47 (16) | 47 (16) | 46 (15) | 46 (15) |
| Fasting glucose, mg/dLe | ||||||
| Unadjusted mean (SD) | 95 (11) | 95 (11) | 96 (12) | 96 (11) | 96 (12) | 97 (12) |
| Age-adjusted mean (SE) | 86 (0.04) | 82 (0.05) | 86 (0.06) | 86 (0.07) | 86 (0.12) | 87 (0.16) |
| Median (IQR) | 94 (13) | 94 (12) | 95 (13) | 95 (13) | 95 (14) | 95 (15) |
| HbA1c e | ||||||
| Unadjusted mean (SD) | 5.6% (1.0) | 5.5% (1.0) | 5.6% (1.1) | 5.6% (1.1) | 5.6% (1.1) | 5.6% (1.1) |
| Age-adjusted mean (SE) | 5.4% (0.01) | 5.3% (0.01) | 5.4% (0.01) | 5.4% (0.01) | 5.4% (0.02) | 5.5% (0.02) |
| Median (IQR) | 5.7% (0.4) | 5.7% (0.4) | 5.8% (0.5) | 5.7% (0.5) | 5.8% (0.5) | 5.8% (0.4) |
Abbreviations: BMI, body mass index (kg/m2); HbA1c, glycated hemoglobin; IQR, interquartile range; PORTAL, Patient Outcomes Research to Advance Learning; SD, standard deviation; SE standard error.
Data source: PORTAL weight cohort (7).
All between-group statistical 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.
To be included in the data set, the electronic health record for an individual was required to have a value for either a fasting glucose test (84.7% of the total) or an HbA1c test (40.4%).