Table 1.
Description of the Study Population: the Health and Retirement Study 2006 and 2008
| %a | ||||
|---|---|---|---|---|
| Characteristic | NSI (n = 8636) | VI alone (n = 1609) | HI alone (n = 1786) | DSI (n = 1061) |
| Weighted proportion | 67.3 | 11.7 | 13.1 | 7.9 |
| Age, mean (SD), y | 65.2 (9.3) | 67.6 (10.8) | 69.5 (10.6) | 70.6 (11.8) |
| Female | 57.2 | 62.3 | 36.6 | 45.7 |
| Non-White race | 12.1 | 23.7 | 8.7 | 18.9 |
| Hispanic ethnicity | 5.4 | 13.6 | 7.7 | 14.6 |
| Born outside United States | 7.1 | 12.1 | 6.7 | 13.4 |
| Married or partnered | 69.1 | 57.3 | 68.7 | 57.6 |
| Education | ||||
| High school or less | 65.6 | 80.6 | 74.9 | 87.6 |
| College | 22.2 | 13.6 | 15.8 | 8.9 |
| Graduate | 12.1 | 5.9 | 9.3 | 3.5 |
| Net household wealth, median (IQR)b | 279 (90–660) | 106 (15–365) | 223 (64–601) | 76 (7–264) |
| BMI, mean (SD) | 29.4 (6.2) | 29.6 (6.9) | 29.4 (6.0) | 29.8 (6.8) |
| Chronic disease index, mean (SD)c | 1.68 (1.25) | 2.26 (1.41) | 2.07 (1.32) | 2.56 (1.44) |
Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared)
DSI, dual sensory impairment
HI, hearing impairment
IQR, interquartile range
NSI, neither sensory impairment
VI, vision impairment.
a
Percentage unless indicated otherwise. All figures are weighted for sampling probabilities and differential nonresponse.
b
Thousand of US dollars.
c
Number of chronic conditions among hypertension, diabetes mellitus, cancer other than skin, lung disease, heart disease, stroke, and arthritis. Range, 0 to 7.