Change characteristics of health-related quality of life and its association with post-stroke fatigue at four-year follow-up.

OBJECTIVE: To explore trajectories that describe change in post-stroke health-related quality of life with fatigue as outcome. DESIGN: Observational and prospective study. SUBJECTS: Stroke survivors (N = 144) with predominantly mild or moderate strokes. METHODS: The multidimensional Stroke-Specific Quality of Life scale was used at 1 and 4 years, and the Fatigue Severity Scale at 4 years post-stroke. Latent class growth analyses were used as person-oriented analyses to identify meaningful trajectories. Socio-demographic and stroke-related covariables provided customary adjustment of the outcome, as well as prediction of class membership. RESULTS: The latent class growth analysis models were estimated for "physical health", "visual-language", and "cognitive-social-mental" components of the Stroke-Specific Quality of Life scale, which extracted trajectories describing a variation in stable, deteriorating and improving functional patterns. The stable, well-functioning trajectory was most frequent across all components. More pronounced fatigue was associated with trajectories describing worse functioning, which was more prominent among females compared with males. Living alone implied more fatigue in the "cognitive-social-mental" component. Within the "visual-language" components' trajectories, younger and older participants reported more fatigue compared with middle-aged participants. CONCLUSION: Most participants belonged to the stable, well-functioning trajectories, which showed a consistently lower level of fatigue compared with the other trajectories.

Visual Problems are Associated with Long-Term Fatigue after Stroke.

OBJECTIVE: Post-stroke fatigue may be associated with functioning even in patients with mild stroke. In order to guide rehabilitation, the aim of this study was to investigate the independent contribution of 12 function-related domains to severe long-term fatigue. DESIGN: Observational follow-up study. SUBJECTS: A total of 144 stroke survivors (mean age 67.3, standard deviation (SD) 10.9 years) were included. METHODS: Fatigue 3-4 years post-stroke was measured with the Fatigue Severity Scale (cut-off ≥5). Independent variables were the multidimensional Stroke-Specific Quality of Life scale with 12 domains, demographics, and baseline stroke characteristics. RESULTS: Most of the participants had mild and moderate stroke. Thirty-five percent (n = 51) reported severe fatigue 3-4 years after stroke. Those living with a significant other, and working participants reported significantly less fatigue. All domains of the Stroke-specific Quality of Life scale were significantly associated with the Fatigue Severity Scale. Adjusted for age, sex, marital status, and work status, the domains "energy", "mood", and, unexpectedly, the domain "vision", were all variables independently associated with severe long-term fatigue. CONCLUSION: Stroke survivors with prominent self-reported visual problems were more likely to experience fatigue. This finding should be verified in further studies. Visual examination and visual rehabilitation may reduce fatigue in selected stroke survivors.