Table 1.
Demographic characteristics of the Health & Retirement Study analytic sample.
| % Median (95% CI) | N | |
|---|---|---|
| Demographics | ||
| Age | 66.19 (65.86, 66.51) | 8440 |
| Gender | 8440 | |
| Female | 54.17 | |
| Male | 45.83 | |
| Race/Ethnicity | 8440 | |
| Non-Hispanic Black | 9.83 | |
| Hispanic | 9.09 | |
| Other | 3.35 | |
| Non-Hispanic White | 77.73 | |
| Education | 8440 | |
| Less than HS | 13.15 | |
| HS Grad | 31.77 | |
| Some College | 26.36 | |
| College Grad and Above | 28.72 | |
| Immune Measures | ||
| Cell Proportions | ||
| CD4+ Total Percent (CD3+ CD19− CD8− CD4+) | 0.705 (0.70, 0.71) | 8440 |
| Naïve CD4+ Percent (CD3+ CD19− CD8+ CD4+ CD45RA+ CCR7+ CD28+) | 0.45 (0.44, 0.45) | 8395 |
| EMRA CD4+ Percent (CD3+ CD19− CD8− CD4+ CD45RA+ CCR7− CD28−) | 0.017 (0.016, 0.018) | 8395 |
| CD8+ Total Percent (CD3+ CD19− CD8+ CD4) | 0.22 (0.218, 0.23) | 8440 |
| Naïve CD8+ Percent (CD3+ CD19− CD8+ CD4− CD45RA+ CCR7+ CD28+) | 0.19 (0.186, 0.20) | 8396 |
| EMRA CD8+ Percent (CD3+ CD19− CD8+ CD4− CD45RA+ CCR7− CD28−) | 0.44 (0.43, 0.45) | 8396 |
| IgD+ Memory B Cells (CD3− CD19+ IgD+ CD27+) | 0.103 (0.101, 0.106) | 8418 |
| IgD− Naive B Cells (CD3− CD19+ IgD− CD27+) | 0.68 (0.678, 0.69) | 8418 |
| Natural Killer Cells: CD56 Low (CD3− CD19− CD20− CD14− CD16+ CD56LO) | 0.953 (0.952, 0.955) | 8262 |
| Natural Killer Cells: CD56 High (CD3− CD19− CD20− CD14− CD16+ CD56HI) | 0.005 (0.0049, 0.0053) | 8262 |
| Ratio Measures | ||
| CD8+: CD4+ Ratio | 0.318 (0.311, 0.325) | 8440 |
| EMRA CD4+: Naïve CD4+ Ratio | 0.037 (0.035, 0.039) | 8395 |
| EMRA CD8+: Naïve CD8+ Ratio | 2.23 (2.13, 2.34) | 8396 |
| Memory: Naïve B Cell Ratio | 0.16 (0.15, 0.16) | 8418 |
| Natural Killer Cells CD56 Low to CD56 High Ratio | 153.55 (148.34, 158.76) | 8262 |
| Monocyte: Lymphocyte Ratio | 0.289 (0.285, 0.29) | 8440 |
| CMV | 8431 | |
| CMV, % Seropositive | 65.82 | |
| CMV IgG Continous Antibodies U/mL of blood (Among Seropositives) | 384.27 (367.12, 401.42) |