Mikael Ludvigsson1, Lars Bernfort2, Jan Marcusson3, Ewa Wressle3, Anna Milberg4. 1. Division of Geriatric Medicine, Linköping University, Norrköping, Sweden. Electronic address: mikael.ludvigsson@regionostergotland.se. 2. Department of Clinical and Experimental Medicine, Division of Health Care Analysis, Linköping University, Norrköping, Sweden. 3. Division of Geriatric Medicine, Linköping University, Norrköping, Sweden. 4. Department of Medical and Health Sciences, Division of Community Medicine, Linköping University, Norrköping, Sweden; Department of Advanced Home Care, Linköping University, Linköping, Sweden.
Abstract
OBJECTIVES: This study aimed to compare, over a 5-year period, the prospective direct healthcare costs and service utilization of persons with subsyndromal depression (SSD) and non-depressive persons (ND), in a population of very old persons. A second aim was to develop a model that predicts direct healthcare costs in very old persons with SSD. DESIGN AND SETTING: A prospective population-based study was undertaken on 85-year-old persons in Sweden. MEASUREMENTS: Depressiveness was screened with the Geriatric Depression Scale at baseline and at 1-year follow-up, and the results were classified into ND, SSD, and syndromal depression. Data on individual healthcare costs and service use from a 5-year period were derived from national database registers. Direct costs were compared between categories using Mann-Whitney U tests, and a prediction model was identified with linear regression. RESULTS: For persons with SSD, the direct healthcare costs per month of survival exceeded those of persons with ND by a ratio 1.45 (€634 versus €436), a difference that was significant even after controlling for somatic multimorbidity. The final regression model consisted of five independent variables predicting direct healthcare costs: male sex, activities of daily living functions, loneliness, presence of SSD, and somatic multimorbidity. CONCLUSIONS: SSD among very old persons is associated with increased direct healthcare costs independently of somatic multimorbidity. The associations between SSD, somatic multimorbidity, and healthcare costs in the very old need to be analyzed further in order to better guide allocation of resources in health policy.
OBJECTIVES: This study aimed to compare, over a 5-year period, the prospective direct healthcare costs and service utilization of persons with subsyndromal depression (SSD) and non-depressivepersons (ND), in a population of very old persons. A second aim was to develop a model that predicts direct healthcare costs in very old persons with SSD. DESIGN AND SETTING: A prospective population-based study was undertaken on 85-year-old persons in Sweden. MEASUREMENTS: Depressiveness was screened with the Geriatric Depression Scale at baseline and at 1-year follow-up, and the results were classified into ND, SSD, and syndromal depression. Data on individual healthcare costs and service use from a 5-year period were derived from national database registers. Direct costs were compared between categories using Mann-Whitney U tests, and a prediction model was identified with linear regression. RESULTS: For persons with SSD, the direct healthcare costs per month of survival exceeded those of persons with ND by a ratio 1.45 (€634 versus €436), a difference that was significant even after controlling for somatic multimorbidity. The final regression model consisted of five independent variables predicting direct healthcare costs: male sex, activities of daily living functions, loneliness, presence of SSD, and somatic multimorbidity. CONCLUSIONS:SSD among very old persons is associated with increased direct healthcare costs independently of somatic multimorbidity. The associations between SSD, somatic multimorbidity, and healthcare costs in the very old need to be analyzed further in order to better guide allocation of resources in health policy.
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