Table 2. Follow-Up, Mortality, and Association of MetS and BMI Statusa With Mortality (N = 12,047), National Health and Nutrition Examination Survey, 1999–2010, and National Death Index, 2011.
| Variable | Normal |
Overweight |
Obese |
|||
|---|---|---|---|---|---|---|
| No MetS | MetS | No MetS | MetS | No MetS | MetS | |
| Person months | 221,490 | 29,270 | 195,434 | 129,018 | 117,742 | 220,715 |
| No. (weighted %) of deaths | 198 (4.1) | 86 (19.4) | 153 (3.8) | 232 (9.8) | 61 (3.4) | 255 (6.7) |
| Mortality per 1,000 person months | 0.89 | 2.94 | 0.78 | 1.80 | 0.52 | 1.16 |
| Unadjusted hazard ratio (95% CI) | 1.00 [Reference] | 4.61 (3.20–6.64) | 1.00 (0.80–1.25) | 2.50 (1.92–3.25) | 0.94 (0.65–1.35) | 1.73 (1.40–2.13) |
| Age- and sex-adjusted hazard ratio (95% CI) | 1.00 [Reference] | 1.71 (1.19–2.46) | 0.93 (0.75–1.15) | 1.13 (0.88–1.45) | 1.06 (0.76–1.46) | 1.24 (1.02–1.52) |
| Multivariate adjusted hazard ratiob (95% CI) | 1.00 [Reference] | 1.70 (1.16–2.51) | 0.99 (0.77–1.28) | 1.10 (0.85–1.42 | 1.08 (0.76–1.54) | 1.30 (1.07–1.60) |
Abbreviations: BMI, body mass index; CI, confidence interval; MetS, metabolic syndrome.
a
Based on standard definitions: normal weight (18.5 to <25.0 kg/m2), overweight (25.0 to <30.0 kg/m2), and obese (≥30.0 kg/m2).
b
Adjusted for age, sex, race/ethnicity, education, poverty-income ratio, smoking status, and physical activity.