Table 1. Period trends in obesity prevalence by age group (1971-2006) (%(standard error)).
| NHANES I (1971-1975) | NHANES II (1976-1980) | NHANES III (1988-1994) | NHANES (1999-2000) | NHANES (2001-2002) | NHANES (2003-2004) | NHANES (2005-2006) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 - 9 years | 5.0% | (0.4%) | 5.9% | (0.6%) | 10.0% | (0.8%) | 12.2% | (1.0%) | 13.1% | (1.5%) | 15.8% | (1.6%) | 12.5% | (1.2%) |
| 10 - 19 years | 6.3% | (0.5%) | 6.1% | (0.5%) | 11.5% | (0.8%) | 15.6% | (1.0%) | 16.4% | (1.2%) | 19.8% | (1.5%) | 18.5% | (1.7%) |
| 20 - 29 years | 8.1% | (0.7%) | 8.5% | (0.7%) | 13.3% | (0.9%) | 21.8% | (2.4%) | 24.5% | (2.0%) | 25.3% | (1.7%) | 25.1% | (2.8%) |
| 30 - 39 years | 13.9% | (1.0%) | 14.1% | (0.8%) | 21.2% | (1.1%) | 28.4% | (2.3%) | 26.5% | (2.0%) | 31.1% | (2.4%) | 32.0% | (2.4%) |
| 40 - 49 years | 15.9% | (1.1%) | 16.8% | (1.0%) | 24.8% | (1.3%) | 31.1% | (3.5%) | 33.6% | (1.7%) | 36.3% | (1.4%) | 38.5% | (2.3%) |
| 50 - 59 years | 18.2% | (1.2%) | 18.3% | (1.0%) | 32.3% | (1.6%) | 36.3% | (3.4%) | 33.2% | (2.2%) | 36.3% | (3.1%) | 41.3% | (2.5%) |
| 60 - 69 years | 17.9% | (1.3%) | 17.7% | (0.9%) | 27.1% | (1.2%) | 39.9% | (1.8%) | 38.8% | (2.0%) | 35.7% | (1.6%) | 40.0% | (2.5%) |
| 70 - 79 years | 17.1%* | (1.3%) | 16.1% | (1.3%) | 22.7% | (1.3%) | 30.5% | (3.6%) | 28.3% | (1.5%) | 30.0% | (2.3%) | 29.5% | (2.9%) |
*
70-74 years