| HRS | Health and Retirement Study |
| EBB | early baby boomers (born between 1948 and 1953) |
| MBB | mid-baby boomers (born between 1954 and 1959) |
| LBB | late baby boomers (born between 1960 and 1965) |
| CES-D | Center for Epidemiological Studies-Depression |
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