Publications by authors named "Akira Ninomiya"

Article Synopsis
  • Anxiety disorders are common mental health issues, and mindfulness-based cognitive therapy (MBCT) has shown effectiveness in treating them, but its cost-effectiveness had not been previously explored.
  • This study involved a randomized controlled trial with 40 anxiety disorder patients to analyze the cost-effectiveness of MBCT compared to standard treatment.
  • MBCT was found to be more expensive than standard treatment by about JPY 13,885 but improved anxiety scores and quality of life, resulting in specific incremental cost-effectiveness ratios that suggest it has a high probability of being a cost-effective option.
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Insomnia is a major concern among stressed workers worldwide. Although stress generally has a detrimental effect on sleep quality, the impact of biological stress, especially the immunological stress response, on sleep quality is not yet fully understood. Stressed workers were recruited through a screening process using a Brief Job Stress Questionnaire.

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Article Synopsis
  • The study investigates the long-term effects of mindfulness-based interventions (MBIs) on stress levels, focusing on MBI graduates' practices during the COVID-19 pandemic.
  • A survey of 95 MBI graduates revealed that those who continued practicing mindfulness reported lower depression and higher resilience and overall health compared to those who did not practice.
  • The findings suggest that regular mindfulness practice can enhance resilience and help mitigate depression, particularly when facing new stressors like the pandemic.
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Purpose: This study aimed to conduct an economic evaluation of mindfulness-based cognitive therapy (MBCT) in healthy participants by performing cost-utility analysis (CUA) and cost-benefit analysis (CBA).

Patients And Methods: CUA was carried out from a healthcare sector perspective and CBA was from the employer's perspective in parallel with a randomized controlled trial. Of the 90 healthy participants, 50 met the inclusion criteria and were randomized to the MBCT group (n = 25) or wait-list control group (n = 25).

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Purpose: Cost-effective analysis is one of the most useful analyses for political decision-making in medicine under a limited budget. Although the data of the ICEpop CAPability measure for Adults (ICECAP-A) is sometimes essential for the measurement of cost effectiveness, such data are often lacking in most clinical trials. Therefore, a conversion formula (ie mapping) derived from the values of clinical assessment scales into utility is required.

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Background: Numerous studies have demonstrated the effectiveness of mindfulness-based programs (MBPs) among both clinical and nonclinical populations. These data document positive impacts in the workplace, including reducing perceived stress and burnout and increasing well-being. However, the effectiveness for productivity, which is of most interest to managers and administrators, is still unclear.

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Background: Augmented mindfulness-based cognitive therapy (MBCT) with treatment as usual (mainly pharmacotherapy) is reported to be effective after treatment for anxiety disorders. However, whether its effectiveness persists in the long term is unclear.

Objective: This study aims to examine the feasibility, acceptability, and effectiveness of a follow-up program by conducting a feasibility randomized controlled trial (RCT) that compares augmented MBCT with follow-up sessions and that without follow-up sessions in preparation for a definitive RCT.

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Purpose: Mindfulness-based cognitive therapy (MBCT) could be an intervention for improving subjective well-being among healthy individuals (HIs). However, MBCT studies for HIs to improve their subjective well-being are rare. The aim of this study was to report the feasibility, safety and effectiveness of MBCT for HIs in comparison with clinical samples.

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Better subjective and eudaimonic well-being fosters better health conditions. Several studies have confirmed that mindfulness-based interventions are effective for improving well-being; however, the samples examined in these studies have been limited to specific populations, and the studies only measured certain aspects of well-being rather than the entire construct. Additionally, few studies have examined the effect of mindfulness-based cognitive therapy on well-being.

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Aim: Pharmacotherapy is the primary treatment strategy in major depression. However, two-thirds of patients remain depressed after the initial antidepressant treatment. Augmented cognitive behavioral therapy (CBT) for pharmacotherapy-resistant depression in primary mental health care settings proved effective and cost-effective.

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Objectives: To deliver mindfulness-based cognitive therapy (MBCT) efficiently, the present study aimed (1) to identify predictors and moderators of patients who benefit from MBCT for psychological distress and (2) to explore the initial treatment reaction to identify the optimal number of sessions that produce a significant clinical effect.

Methods: This is the secondary analysis of a randomized controlled trial of MBCT for breast cancer patients (N = 74). We classified the participants into remitters vs.

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Background: It is not clear which method is more cost-effective: To initially provide all depressed patients with combination therapy (COMB; i.e. cognitive behavioural therapy plus pharmacotherapy), followed by antidepressant treatment (AD) for those still in depression; or, to first provide AD for all patients, followed by COMB for non-remission patients.

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Background: Although the effects of various types of cognitive interventions have been evaluated, effectiveness and cost-saving effect of the combination of the different cognitive interventions is unknown.

Objective: This study aimed to evaluate the feasibility of conducting a definitive trial to assess the effectiveness of combined cognitive intervention.

Methods: A matched controlled trial of learning therapy (LT), a combination of cognitive training and stimulation, was conducted.

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Context: Mindfulness-based interventions have been receiving growing attention in cancer care.

Objectives: The purpose of this randomized controlled trial is to examine the effectiveness of mindfulness-based cognitive therapy (MBCT) for psychological distress (anxiety and depression), fear of cancer recurrence (FCR), fatigue, spiritual well-being, and quality of life (QOL) in Japanese ambulatory patients with Stage I-III breast cancer.

Methods: A total of 74 patients were randomly assigned to either an eight-week MBCT intervention group (n = 38) or a wait-list control group (n = 36).

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Background: Previous studies have indicated that higher subjective well-being works as a protective factor for health. Some studies have already shown the effects of mindfulness-based interventions on improving subjective well-being. However, these studies targeted specific populations rather than the general public.

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Aim: The primary objective of this study was to examine the effectiveness of mindfulness-based cognitive therapy (MBCT) in secondary-care settings where the vast majority of the patients have already undergone pharmacotherapy but have not remitted.

Methods: Eligible participants were aged between 20 and 75 years and met the criteria for panic disorder/agoraphobia or social anxiety disorder specified in the DSM-IV. They were randomly assigned to either the MBCT group (n = 20) or the wait-list control group (n = 20).

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Background: This study aimed to examine potential predictors of duration of sick leave due to mental disorders in Japan.

Methods: A total of 207 employees at a manufacturing company in Japan with a past history of sick leave due to mental disorders participated in this study. Mental disorders were defined as those listed in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV).

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Aim: Previous studies indicate that mirtazapine is unique in its quick responsiveness compared to other antidepressants. Although some other studies have evaluated its cost-effectiveness, they have not considered its early stage remission rate. The aim of this study was to address this research gap by using precise clinical data to evaluate the cost-effectiveness of mirtazapine in Japan.

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Article Synopsis
  • Dementia is a major global issue with significant financial implications, costing an estimated $818 billion in 2015, and Japan faces a critical situation as it has the highest aging population but lacks estimated societal costs of dementia.
  • This study used a prevalence-based approach to estimate the societal costs of dementia in Japan, relying on various national databases and surveys for healthcare and care utilization data.
  • In 2014, Japan's societal costs for dementia were estimated at JPY 14.5 trillion, projected to rise to JPY 24.3 trillion by 2060, highlighting the need for interventions to address these substantial costs.
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Objective: Mindfulness-based cognitive therapy (MBCT) could be a treatment option for anxiety disorders. Although its effectiveness under conditions of low pharmacotherapy rates has been demonstrated, its effectiveness under condition of high pharmacotherapy rate is still unknown. The aim of the study was to evaluate effectiveness of MBCT under the context of high pharmacotherapy rates.

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Article Synopsis
  • The study investigates psychological distress in caregivers of dementia patients in Japan, highlighting that many caregivers experience significant mental health issues like depression.* -
  • Data from 1,437 caregiver-patient pairs were analyzed to identify factors affecting caregivers' distress, revealing a strong connection between caregiver distress and the patients' mental health, care time, and support availability.* -
  • The findings indicate that high levels of psychological distress among caregivers are linked to the dementia patient's behavioral symptoms and the demands of informal caregiving, confirming trends established in earlier research.*
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Article Synopsis
  • - The study investigated the feasibility and effectiveness of mindfulness-based cognitive therapy (MBCT) for Japanese breast cancer patients, examining how the program could be better adapted for this group.
  • - Twelve patients participated in an eight-session MBCT program, showing a high attendance rate and significant improvements in anxiety, trauma-related symptoms, quality of life, and some indications of reduced depression.
  • - The findings suggest that MBCT is well-received and beneficial for psychological well-being and fear of cancer recurrence, but further randomized-control studies are needed to confirm these effects.
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