Table 2.
The distribution of physiological measures and disability benefit outcomes among 9,595 observations in the Health and Retirement Study: 2006–2012
| Mean (weighted) | Mean (unweighted) | Minimum | Maximum | Number of missing values | |
|---|---|---|---|---|---|
| Disability benefit receipt | |||||
| Receiving benefits | 0.13 | 0.13 | 0 | 1 | 0 |
| Demographics | |||||
| Age | 58.68 | 58.76 | 51.00 | 65.92 | 0 |
| Female sex | 0.52 | 0.58 | 0 | 1 | 0 |
| Non-Hispanic white | 0.76 | 0.64 | 0 | 1 | 21 |
| Non-Hispanic black | 0.11 | 0.20 | 0 | 1 | 21 |
| Hispanic | 0.09 | 0.13 | 0 | 1 | 21 |
| Other race/ethnicity | 0.04 | 0.03 | 0 | 1 | 21 |
| Anthropometric measures | |||||
| Height | 66.24 | 65.82 | 48 | 78 | 139 |
| Underweight | 0.01 | 0.01 | 0 | 1 | 461 |
| Normal weight | 0.19 | 0.19 | 0 | 1 | 461 |
| Overweight | 0.34 | 0.33 | 0 | 1 | 461 |
| Obese | 0.46 | 0.48 | 0 | 1 | 461 |
| Waist circumference | 40.32 | 40.38 | 20.5 | 78.0 | 244 |
| Measures of physical function | |||||
| Grip strength | 36.43 | 35.01 | 5.5 | 100 | 310 |
| Lung function | 425.36 | 409.78 | 70 | 890 | 208 |
| Balance: Passed test | 0.79 | 0.77 | 0 | 1 | 81 |
| Pulse | 71.41 | 71.68 | 37 | 141 | 296 |
| Systolic blood pressure | 127.54 | 128.32 | 73.33 | 226.00 | 296 |
| Diastolic blood pressure | 81.31 | 81.73 | 47.33 | 145.33 | 297 |
| Biomarkers | |||||
| Total cholesterol | 203.39 | 202.66 | 85.89 | 478.82 | 977 |
| HDL cholesterol | 54.65 | 54.74 | 12.52 | 145.81 | 1,385 |
| HbA1c | 5.80 | 5.88 | 3.62 | 17.26 | 943 |
| C-reactive protein (ln) | 0.50 | 0.54 | −2.21 | 2.30 | 1,840 |
| Cystatin C | 0.99 | 1.00 | 0.05 | 8.56 | 1,127 |
| Telomere length (ln) | 0.30 | 0.31 | −0.47 | 1.25 | 8,115 |
| Genetic markers | |||||
| APOE gene: Risk alleles present | 0.30 | 0.30 | 0 | 2 | 4,085 |
| COMT gene: Risk allele present | 0.24 | 0.24 | 0 | 1 | 4,085 |
| FTO gene: Risk allele present | 0.63 | 0.62 | 0 | 1 | 4,085 |
| IL6 gene: Risk allele present | 0.59 | 0.55 | 0 | 1 | 4,085 |
| Medications | |||||
| Taking cholesterol medication | 0.35 | 0.35 | 0 | 1 | 41 |
| Taking diabetes medication | 0.15 | 0.17 | 0 | 1 | 141 |
| Taking hypertension medication | 0.41 | 0.43 | 0 | 1 | 211 |
Note: Genetics information was available only for the 2006 and 2008 waves, but for the people observed at more than one wave we assumed that genetics did not change. Telomere length was available only in 2008. To generate the weighted means, we adjusted the HRS physical measure and biomarker weights for propensity to consent to SSA data linkage.