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. Author manuscript; available in PMC: 2013 Jul 9.
Published in final edited form as: Arthritis Care Res (Hoboken). 2012 Mar;64(3):448–454. doi: 10.1002/acr.21566

Table 4.

Separate multivariate linear regression analyses predicting the number of neuropsychological indices impaired*

Total group Standardized β R2 ΔR2 Significance
Regression 1: PDQ-SF ≥10 0.13 0.20 0.01 0.14
Regression 2: phonemic fluency ≤34 0.33 0.29 0.11 < 0.0001
Regression 3: HVLT-R learning ≤26 0.08 0.32 0.13 < 0.0001
Regression 4: HVLT-R delay ≤9 0.35 0.34 0.14 < 0.0001
Regression 5: all cognitive screening measures 0.46 0.26 < 0.0001
*

Controlling for race/ethnicity, educational level, sex, income, and major depressive disorder. PDQ-SF = Perceived Deficits Questionnaire-Short Form; HVLT-R = Hopkins Verbal Learning Test-Revised.