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Dive into the research topics where Saku Väätäinen is active.

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Featured researches published by Saku Väätäinen.


International Journal of Geriatric Psychiatry | 2018

Quality of Life in relation to neuropsychiatric symptoms in Alzheimer's disease: 5‐year prospective ALSOVA cohort study

Kristiina Hongisto; Ilona Hallikainen; Tuomas Selander; Soili Törmälehto; Saku Väätäinen; Janne Martikainen; Tarja Välimäki; Sirpa Hartikainen; Jaana Suhonen; Anne M. Koivisto

To examine the association between neuropsychiatric symptoms (NPS) with self‐ and caregiver‐rated Quality of Life (QoL) for patients with Alzheimers disease (AD) during a 5‐year follow‐up.


Journal of Geriatric Psychiatry and Neurology | 2015

Depressed spousal caregivers have psychological stress unrelated to the progression of Alzheimer disease: a 3-year follow-up report, Kuopio ALSOVA Study

Tarja Välimäki; Janne Martikainen; Ilona Hallikainen; Saku Väätäinen; Anne M. Koivisto

Objective: To explore family caregiver (FC) long-term psychological distress after Alzheimer disease (AD) diagnosis in a family member. Methods: FC (n = 236) and patients with AD were prospectively followed up to 36 months after AD diagnosis. FC psychological distress was evaluated using the General Health Questionnaire (GHQ). Furthermore, caregiver depressive symptoms and sense of coherence, along with AD patient measurements, were measured at baseline and annually. Generalized estimating equation models were applied to study associations of these baseline factors to caregiver GHQ. Results: After 36 months of follow-up, spousal caregivers (SCs) GHQ was significantly higher (P < .001) than in the nonspousal caregivers (NSCs). The difference in GHQ scores was associated by depressive symptoms (P < .001) at baseline, and the depressed SCs have more severe distress than NSCs over the observation period. Conclusion: During longitudinal caregiving, spousal and depressed caregivers of patients with AD report higher and increasing psychological stress than nonspousal and nondepressed caregivers. Spousal relationship, caregivers’ depressive symptoms, and the severity of patients’ neuropsychological symptoms at the time of AD diagnosis predict the trajectory of psychological distress. The current study highlights the need for evaluating AD caregiver mental health and level of coping.


Esc Heart Failure | 2017

Budget impact of intravenous iron therapy with ferric carboxymaltose in patients with chronic heart failure and iron deficiency in Germany

Ulrike Theidel; Saku Väätäinen; Janne Martikainen; Ej Soini; Thomas Hardt; Wolfram Doehner

Treatment of iron deficiency (ID) in patients with heart failure (HF) with intravenous iron substitution [ferric carboxymaltose (FCM)] has previously shown significant improvements in exercise capacity, New York Heart Association (NYHA) functional class, quality of life, and reduction of hospitalization. The aim of this study was to estimate the budget impact of FCM treatment for patients with HF and ID.


PLOS ONE | 2015

Depressive symptoms are associated with analgesic use in people with Alzheimer's disease: Kuopio ALSOVA study.

Julia Fiona-Maree Gilmartin; Saku Väätäinen; Soili Törmälehto; J. Simon Bell; Eija Lönnroos; Lotta Salo; Ilona Hallikainen; Janne Martikainen; Anne M. Koivisto

Neuropsychiatric symptoms of Alzheimer’s disease (AD) such as depression may be associated with pain, which according to the literature may be inadequately recognized and managed in this population. This study aimed to identify the factors associated with analgesic use in persons with AD; in particular, how AD severity, functional status, neuropsychiatric symptoms of AD, co-morbidities and somatic symptoms are associated with analgesic use. 236 community-dwelling persons with very mild or mild AD at baseline, and their caregivers, were interviewed over five years as part of the prospective ALSOVA study. Generalized Estimating Equations (GEEs) were used to estimate unadjusted and adjusted odds ratios (ORs) for the factors associated with analgesic use over a five year follow-up. The proportion of persons with AD using any analgesic was low (13.6%) at baseline and remained relatively constant during the follow-up (15.3% at Year 5). Over time, the most prevalent analgesic changed from non-steroidal anti-inflammatories (8.1% of persons with AD at Year 1) to acetaminophen (11.1% at Year 5). Depressive symptoms (measured by the Beck Depression Inventory, BDI) were independently associated with analgesic use, after effects of age, gender, education, AD severity, comorbidities and somatic symptoms were taken into account. For every one unit increase in BDI, the odds of analgesic use increased by 4% (OR = 1.04, 95% confidence interval CI = 1.02-1.07). Caregiver depressive symptoms were not statistically significantly associated with analgesic use of the person with AD. Depressive symptoms were significantly associated with analgesic use during the five year follow-up period. Possible explanations warranting investigation are that persons with AD may express depressive symptoms as painful somatic complaints, or untreated pain may cause depressive symptoms. Greater awareness of the association between depressive symptoms and analgesic use may lead to safer and more effective prescribing for these conditions.


PLOS ONE | 2016

Does Future Diabetes Risk Impair Current Quality of Life? A Cross-Sectional Study of Health-Related Quality of Life in Relation to the Finnish Diabetes Risk Score (FINDRISC)

Saku Väätäinen; Henna Cederberg; Risto P. Roine; Sirkka Keinänen-Kiukaanniemi; Jouko Saramies; Hannu Uusitalo; Jaakko Tuomilehto; Janne Martikainen

Objectives Present study examines the relationship between the estimated risk of developing type 2 diabetes (T2D) and health-related quality of life (HRQoL). We quantify the association between Finnish Diabetes Risk Score (FINDRISC) and HRQoL, and examine the potential use of FINDRISC as tool to evaluate HRQoL indirectly. Methods We conducted a cross-sectional study comprising 707 Finnish people without a diagnosis of T2D between the ages of 51 and 75 years. The risk of developing T2D was assessed using the validated and widely used FINDRISC (range 0–26 points), and quality of life was measured using two preference-based HRQoL instruments (15D and SF-6D) and one health profile instrument (SF-36). Effects of the individual FINDRISC items and demographic and clinical characteristics, such as co-morbidities, on HRQoL were studied using multivariable Tobit regression models. Results Low HRQoL was significantly and directly associated with the estimated risk of developing T2D. An approximate 4–5 point change in FINDRISC score was observed to be associated with clinically noticeable changes in the preference-based instrument HRQoL index scores. The association between HRQoL and the risk of developing T2D was also observed for most dimensions of HRQoL in all applied HRQoL instruments. Overall, old age, lack of physical activity, obesity, and history of high blood glucose were the FINDRISC factors most prominently associated with lower HRQoL. Conclusions The findings may help the health care professionals to substantiate the possible improvement in glucose metabolism and HRQoL potentially achieved by lifestyle changes, and better convince people at high risk of T2D to take action towards healthier lifestyle habits. FINDRISC may also provide an accurate proxy for HRQoL, and thus by estimating the risk of T2D with the FINDRISC, information about patients’ HRQoL may also be obtained indirectly, when it is not feasible to use HRQoL instruments.


Journal of Alzheimer's Disease | 2015

Use of Anti-Dementia Drugs in Relation to Change in Cognition, Behavior, and Functioning in Alzheimer’s Disease over a Three-Year Period: Kuopio ALSOVA Study

Soili Törmälehto; Janne Martikainen; Saku Väätäinen; Ilona Hallikainen; Merja Hallikainen; J. Simon Bell; Anne M. Koivisto

BACKGROUND Alzheimers disease (AD) is characterized by deterioration in cognition, decline in physical function, and increase in behavioral disturbances. These symptoms are associated with dependence. OBJECTIVE We investigated the use of anti-dementia drugs in relation to change in cognition, function, and behavior over a 3-year period. METHODS Data were collected as part of the prospective follow-up ALSOVA study. All study participants (n = 236) had very mild or mild AD at baseline. All participants and their informal caregivers underwent annual clinical and medication assessments. Repeated measures logistic regression was used to compute odds ratios (ORs) and 95% confidence intervals (CIs) for factors associated with anti-dementia drug use and disease progression measures over time. RESULTS The overall prevalence of anti-dementia drug use remained stable (from 89% to 92%) during the follow-up period. The use of memantine and cholinesterase inhibitor-memantine combination treatment increased with disease severity. After adjustment for confounding, a one-point increase in the disease severity scale (CDR-SOB) was associated with 15.6% increased odds of memantine use. A one-point decrease in CERAD Neuropsychological battery (CERAD-NB) total score was associated with 2.4% increased odds of memantine use. The overall unadjusted rate of switching between anti-dementia drugs was 9.17 (95% CI 7.10 to 11.88) changes per 100 person-years. CONCLUSION Nearly 90% of newly diagnosed persons with AD were prescribed anti-dementia drugs. Use of memantine was found to be associated with disease progression. Switching and use of anti-dementia drugs was consistent with Finnish and European clinical practice guidelines for AD.


Dementia and geriatric cognitive disorders extra | 2014

The Progression of Alzheimer's Disease Can Be Assessed with a Short Version of the CERAD Neuropsychological Battery: The Kuopio ALSOVA Study

Ilona Hallikainen; Janne Martikainen; Pei-Jung Lin; Joshua T. Cohen; Raquel Lahoz; Tarja Välimäki; Kristiina Hongisto; Saku Väätäinen; Matti Vanhanen; Peter J. Neumann; Tuomo Hänninen; Anne M. Koivisto

Background/Aims: Measuring and predicting Alzheimers disease (AD) progression is important in order to adjust treatment and allocate care resources. We aimed to identify a combination of subtests from the Consortium to Establish a Registry for Alzheimers Disease Neuropsychological Battery (CERAD-NB) that best correlated with AD progression in follow-up as well as to predict AD progression. Method: A total of 236 participants with very mild [Clinical Dementia Rating (CDR) = 0.5] or mild AD (CDR = 1.0) at baseline were followed up for 3 years. The CERAD-NB and Mini-Mental State Examination (MMSE) were used to assess cognition, and the CDR scale sum of boxes (CDR-sb) was employed to evaluate AD progression. Generalized estimating equations were used to develop models to predict and follow up disease progression. Results: Performance declined on all CERAD-NB subtests. The ability of the separate subtests to distinguish between groups (baseline CDR = 0.5 or 1.0) diminished during follow-up. The best combination of subtests that explained 62% of CDR-sb variance in follow-up included verbal fluency, constructional praxis, the clock drawing test, and the MMSE. Baseline values of the same combination predicted 37% of the CDR-sb change. Conclusion: A short version of the CERAD-NB subtests provides a promising and time-efficient alternative for measuring cognitive deterioration during AD follow-up. Although the initial signs of AD include memory difficulties, it may be useful to assess non-memory tasks in follow-up.


Quality of Life Research | 2014

Quality of life along the diabetes continuum: a cross-sectional view of health-related quality of life and general health status in middle-aged and older Finns

Saku Väätäinen; Sirkka Keinänen-Kiukaanniemi; Jouko Saramies; Hannu Uusitalo; Jaakko Tuomilehto; Janne Martikainen


Quality of Life Research | 2016

Impact of Alzheimer's disease on the family caregiver's long-term quality of life: results from an ALSOVA follow-up study

Tarja Välimäki; Janne Martikainen; Kristiina Hongisto; Saku Väätäinen; Harri Sintonen; Anne M. Koivisto


American Journal of Geriatric Psychiatry | 2015

Self-Rated and Caregiver-Rated Quality of Life in Alzheimer Disease with a Focus on Evolving Patient Ability to Respond to Questionnaires: 5-Year Prospective ALSOVA Cohort Study

Kristiina Hongisto; Saku Väätäinen; Janne Martikainen; Ilona Hallikainen; Tarja Välimäki; Sirpa Hartikainen; Jaana Suhonen; Anne M. Koivisto

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Janne Martikainen

University of Eastern Finland

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Anne M. Koivisto

University of Eastern Finland

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Ilona Hallikainen

University of Eastern Finland

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Tarja Välimäki

University of Eastern Finland

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Kristiina Hongisto

University of Eastern Finland

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Soili Törmälehto

University of Eastern Finland

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