Table 1.
Descriptive characteristics of various BMI measures for study participants aged 50–74 years at survey (n=2,505)
| Characteristic | |
|---|---|
| Continuous Duration-based Measures; mean (SD) | |
| Duration with BMI≥25.0 kg/m2 (years) | 17.20 (14.73) |
| BMI-years above BMI 25.0 kg/m2 | 53.23 (76.67) |
| Survey BM I (kg/m2) % | |
| <25.0 | 28.1 |
| 25.0–29.9 (overweight) | 43.6 |
| 30.0+ (obese) | 28.3 |
| Overall Peak BMI (kg/m2) % | |
| <25.0 | 23.1 |
| 25.0–29.9 (overweight) | 44.6 |
| 30.0+ (obese) | 32.3 |
| Other Continuous Measures; mean (SD) | |
| Survey BMI >25.0 kg/m2 | 3.43 (3.91) |
| Overall peak BMI >25.0 kg/m2 | 3.85 (4.04) |
| Historical peak BMI >25.0 kg/m2 | 2.44 (3.23) |
Note: BMI-years is a composite measure of duration in years above a BMI of 25.0 kg/m2 and number of BMI units above a BMI of 25.0. Survey BMI is BMI at time of survey in 2000–2001. Overall peak BMI is the peak BMI from the retrospective reports of weight at earlier ages (ages 20, 30, 40, and 50 years) and survey BMI. Historical peak BMI identifies peak excluding information at survey. For the other continuous measures, those with a BMI≤25 were coded 0 and those with a BMI>25 were coded as (BMI-25.0). Estimates reflect sample weighting. Persons who were underweight (< 18.5 kg/m2) are excluded.
SD: Standard Deviation