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Volume
7: No. 5, September 2010
ORIGINAL RESEARCH
Evaluating a Preventive Services Index to Adjust for Healthy Behaviors in Observational Studies of Older Adults
| Age, y |
Original Index |
PCA Score |
| 60-69 |
1.90 |
0.0820 |
| 70-74 |
1.84 |
0.0219 |
| 75-79 |
1.74 |
−0.0254 |
| ≥80 |
1.43 |
−0.1879 |
Figure 1. Original preventive services index and
principal component analysis score by age group (N = 38,046). Abbreviations: PCA,
principal components analysis. Data are from “PCA:
Men or Women” in Table 3, where variables are influenza vaccination, pneumococcal
vaccination, colon cancer screening, prostate-specific antigen test, mammogram, and
preventive office
visit.
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