Table 2.
Odds Ratios for Presence of Dementia Based on Cognitive Tests (HRS) and Diagnosis Codes (Medicare Claims), Aged 67 and Older, 2006–2013
| (1) | (2) | |||
|---|---|---|---|---|
| Presence of dementia | Cognitive tests (HRS) | Diagnosis codes (Claims) | ||
| Odds ratio | 95% CI | Odds ratio | 95% CI | |
| Male | 1 | 1–1 | 1 | 1–1 |
| Female | 1.05 | 0.95–1.13 | 1.28* | 1.28–1.28 |
| White | 1 | 1–1 | 1 | 1–1 |
| Black | 4.91* | 4.41–5.42 | 1.68* | 1.67–1.69 |
| Hispanic | 4.22* | 3.69–4.79 | 1.46* | 1.45–1.47 |
| Other races | 1.89* | 1.52–2.33 | 0.98* | 0.97–0.99 |
| 67–69 | 1 | 1–1 | 1 | 1–1 |
| 70–74 | 1.44* | 1.22–1.71 | 1.88* | 1.87–1.9 |
| 75–79 | 2.43* | 2.04–2.85 | 3.91* | 3.89–3.94 |
| 80–84 | 4.36* | 3.66–5.14 | 7.51* | 7.46–7.57 |
| 85–89 | 8.86* | 7.42–10.51 | 13.09* | 12.99–13.19 |
| 90 and older | 17.22* | 14.19–20.71 | 21.91* | 21.74–22.08 |
| 2006 | 1 | 1–1 | 1 | 1–1 |
| 2007 | 1.05* | 1.04–1.05 | ||
| 2008 | 0.95 | 0.84–1.06 | 1.08* | 1.08–1.09 |
| 2009 | 1.11* | 1.11–1.12 | ||
| 2010 | 0.97 | 0.86–1.1 | 1.12* | 1.12–1.12 |
| 2011 | 1.10* | 1.1–1.11 | ||
| 2012 | 0.85* | 0.75–0.96 | 1.083* | 1.08–1.09 |
| 2013 | 1.02* | 1.01–1.02 | ||
| Constant | 0.04* | 0.03–0.04 | 0.0232* | 0.02–0.02 |
| Observations | 40,224 | 32,855,743 | ||
| Pseudo R2 | 0.146 | 0.1194 | ||
Notes: CI = confidence interval; HRS = Health and Retirement Study; Claims = Medicare claims; samples restricted to age 67 and older. 95% CI adjusted by Bonferroni correction.
*p < .001.