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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Am J Geriatr Psychiatry. 2011 Oct;19(10):881–890. doi: 10.1097/JGP.0b013e3182006a67

Figure. Estimated regression coefficients and their 95% confidence intervals for the GDS sub-scale variables related to the depressed mood, apathy, anxiety, cognitive impairment, and other items of the GDS.

Figure

GDS = Geriatric Depression Scale; EQ-5D = European Quality of Life-5 Dimensions; QWB = Quality of Well-Being Index; VAS = Global Quality of Life Visual Analog Scale; QOL-AD = Quality of Life-Alzheimer’s Disease.

For each quality of life outcome variable, the regression coefficients were calculated from four fully adjusted regression models. Each regression analysis was adjusted for patient age, sex, marital status, first language, Charlson score, Alzheimer’s Disease Assessment Scale-Cognitive Subscale, Disability Assessment for Dementia, Neuropsychiatric Inventory and study center, as well as for the other GDS sub-scale variables. The QOL-AD scores were normalized to a 0–1 scale. The degrees of freedom for calculating the 95% confidence intervals ranged from 288 to 291.