Modeling late-life adaptation in affective well-being under a severe chronic health condition: the case of age-related macular degeneration |
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Authors: | Schilling Oliver K Wahl Hans-Werner |
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Institution: | Department of Psychological Aging Research, Institute of Psychology, University of Heidelberg, Heidelberg, Germany. oliver.schilling@psychologie.uni-heidelberg.de |
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Abstract: | Age-related macular degeneration (AMD) was used as a case model to longitudinally study adaptation in affective well-being under a prevalent chronic health condition. Measures of positive and negative affect, obtained at 5 subsequent measurement occasions with 3-month intervals in between, were analyzed in 90 older adults diagnosed with AMD. The authors proposed a pattern of adaptation that shows initial decline in affective well-being after disease outbreak, followed by a turnaround into a restorative phase of increase, implying nonlinear intraindividual trajectories, with changes substantially related to disease duration. Analysis was conducted by means of a nonlinear mixed models approach. Results confirmed the hypothesized adaptation pattern for positive affect but not for negative affect, which was found more stable across measurement occasions. |
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