Unweighted Sociodemographic Characteristics of Subjects from the National Health and Nutrition Examination Survey, 2009–2012
| Characteristic | Retirees (n = 359)* | Nonretirees (n = 597)* | P Value† |
|---|---|---|---|
| Age, years (mean ± SD) | 65.6 ± 3.5 | 61.0 ± 4.3 | <.0001 |
| Sex | |||
| Male | 52.4 | 57.1 | .04 |
| Female | 47.6 | 42.9 | |
| Height, cm (mean ± SD) | 166.9 ± 9.5 | 168.2 ± 10.1 | .0003 |
| Weight, kg (mean ± SD) | 84.3 ± 20.6 | 82.2 ± 19.4 | .25 |
| Race | |||
| Hispanic | 21.2 | 26.3 | .58 |
| White | 41.8 | 41.0 | |
| Black | 27.9 | 21.3 | |
| Other | 9.2 | 11.4 | |
| Body mass index | |||
| Underweight (<18.5 kg/m2) | 0.9 | 0.7 | .62 |
| Normal weight (≥18.5 but ≤24.9 kg/m2) | 20.5 | 26.0 | |
| Overweight (≥25 but ≤29.9 kg/m2) | 32.1 | 35.5 | |
| Obese (≥30 kg/m2) | 46.5 | 37.8 | |
| Health insurance | |||
| None | 7.0 | 18.8 | <.0001 |
| Private | 55.0 | 66.8 | |
| Public | 38.0 | 14.4 | |
| Ratio of family income to poverty | |||
| ≥1.0 | 86.2 | 88.7 | .24 |
| <1.0 | 13.8 | 11.3 |
Data are percentages unless otherwise indicated.
↵* Numbers of subjects in each category may be different because of the missing values for some variables.
↵† P value from the χ2 test (categorical variables) and regression analysis (continuous variables) comparing the difference in demographic variables between late retirees and nonretirees.
SD, standard deviation.