Effect of individualized occupational therapy on cognition among patients with schizophrenia: A randomized controlled trial.

This study aimed to evaluate the feasibility and efficacy of individualized occupational therapy (IOT) plus group occupational therapy (GOT) as standard care for cognition compared to GOT alone, and to determine which IOT component has the greatest effect on cognitive outcome in patients with schizophrenia. This study was conducted at 14 clinical sites across Japan and enrolled recently hospitalized patients with schizophrenia. The IOT consisted of motivational interview, self-monitoring, individualized visits, craft activities, individualized psychoeducation, and discharge planning. Among the 68 patients who were randomized to the GOT + IOT group (n = 34) and GOT alone group (n = 34), 67 completed the trial (GOT + IOT group, n = 34; GOT alone group, n = 33). There were significant improvements in change from baseline to post-treatment between the groups in verbal memory, working memory, verbal fluency, attention, executive function domains, and the composite score of the Brief Assessment of Cognition in Schizophrenia (BACS). The BACS composite score was significantly associated with the number of craft activity sessions. The addition of IOT to GOT has a favorable feasibility profile and efficacy for cognition in schizophrenia. Craft activity is the most effective IOT component in improving cognition.

Identifying profiles of stroke patients benefitting from additional training: a latent class analysis approach.

OBJECTIVE: To identify profiles of stroke patient benefitting from additional training, using latent class analysis. DESIGN: Retrospective observational study. PATIENTS: Patients with stroke (n = 6,875) admitted to 42 recovery rehabilitation units in Japan between January 2005 and March 2016 who were registered in the Japan Association of Rehabilitation Database. METHODS: The main outcome measure was the difference in Functional Independence Measure (FIM) scores between admission and discharge (referred to as "gain"). The effect of additional training, categorized as usual care (no additional training), self-exercise, training with hospital staff, or both exercise (combining self-exercise and training with hospital staff), was assessed through multiple regression analyses of latent classes. RESULTS: Applying inclusion and exclusion criteria, 1185 patients were classified into 7 latent classes based on their admission characteristics (class size n = 82 (7%) to n = 226 (19%)). Patients with class 2 characteristics (right hemiparesis and modified dependence in the motor-FIM and cognitive-FIM) had positive FIM gain with additional training (95% confidence interval (95% CI) 0.49-3.29; p < 0.01). One-way analysis of variance revealed that training with hospital staff (95% CI 0.07-16.94; p < 0.05) and both exercises (95% CI 5.38-15.13; p < 0.01) led to a significantly higher mean FIM gain than after usual care. CONCLUSION: Additional training in patients with stroke with right hemiparesis and modified dependence in activities of daily living was shown to improve activities of daily living. Training with hospital staff combined with self-exercise is a promising rehabilitation strategy for these patients.

Cost-effectiveness of occupational therapy for older adults: a protocol for an updated systematic review.

INTRODUCTION: The ageing populations in developed countries are a global concern, with increasing numbers of older adults facing physical, cognitive and psychological challenges, resulting in reduced quality of life and higher healthcare costs. Healthcare expenditure worldwide has been on the rise, especially among older adults, emphasising the importance of enabling independent living while reducing healthcare costs. Occupational therapy holds promising outcomes in promoting functional independence and enhancing the quality of life for older adults, but research on its cost-effectiveness remains limited. This systematic review aims to evaluate the recent evidence on the cost-effectiveness of occupational therapy interventions for older adults from a pragmatic perspective. METHODS AND ANALYSIS: This systematic review will cover full economic evaluations, including cost-effectiveness, cost-utility and cost-benefit analyses, by reviewing randomised and cluster randomised controlled trials. The participants will be aged over 65 years without disease or disability restrictions. Primary outcomes will be assessed using functional status and quality-of-life assessments. Studies published before July 2023 will be searched in PubMed, Web of Science and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases, with no language restrictions. ETHICS AND DISSEMINATION: Ethical approval is not required for this literature-based systematic review. The study's findings will update the evaluation of occupational therapy's cost-effectiveness in older adults and will be made public by publishing them in scholarly journals. PROSPERO REGISTRATION NUMBER: CRD42023453558.

The Occupational Experience Helps to Express the Clients' Occupational Needs in Goal Setting: A Retrospective Study in Subacute Care Setting.

This study investigates whether reflection on occupational experience during assessment and intervention would help clients express their occupational needs in goal setting. Sixty-two participants who were not able to express their occupational needs in the initial assessment process were either allocated to the occupational experience group who undertook occupation-based assessment and intervention, or the physical training group who engaged in physical training only. The ratio of participants who expressed their occupational needs in each group was 67% (30/45) and 12% (2/17) respectively. Reflection on occupational experience during assessment and intervention to help clients express their occupational needs would have significant implications for practice, as it may encourage clients to reflect on their performance more easily.

Effectiveness of active occupational therapy in patients with acute stroke: A propensity score-weighted retrospective study.

Background and purpose: The effects of therapy and patient characteristics on rehabilitation outcomes in patients with acute stroke are unclear. We investigated the effects of intensive occupational therapy (OT) on patients with acute stroke. Methods: We performed a retrospective cohort study using the 2005-2016 Japan Rehabilitation Database, from which we identified patients with stroke (n = 10,270) who were admitted to acute care hospitals (n = 37). We defined active OT (AOT) and non-AOT as OT intervention times (total intervention time/length of hospital stay) longer or shorter than the daily physical therapy intervention time, respectively. The outcomes assessed were the Functional Independence Measure (FIM) and National Institutes of Health Stroke Scale (NIHSS) scores, duration of hospitalization, and rate of discharge. Propensity scores and inverse probability of treatment weighting analyses adjusted for patient characteristics were performed to investigate the effects of AOT on patient outcomes. Results: We enrolled 3,501 patients (1,938 and 1,563 patients in the AOT and non-AOT groups, respectively) in the study. After inverse probability of treatment weighting, the AOT group had a shorter length of hospitalization (95% confidence interval: -3.7, -1.3, p < 0.001), and the FIM (95% confidence interval: 2.0, 5.7, p < 0.001) and NIHSS (95% confidence interval; 0.3, 1.1, p < 0.001) scores improved significantly. Subgroup analysis showed that lower NHISS scores for aphasia, gaze, and neglect and lower overall NIHSS and FIM scores on admission led to a greater increase in FIM scores in the AOT group. Conclusions: AOT improved the limitations in performing activities of daily living (ADL) and physical function in patients with acute stroke and reduced the length of hospitalization. Additionally, subgroup analysis suggested that the increase in FIM score was greater in patients with severe limitations in performing ADLs and worse cognitive impairment, such as neglect, on admission.

Medical Costs and Readmissions After Intensive Poststroke Rehabilitation: Japanese Claims Data.

OBJECTIVES: This study examined the association between intensive rehabilitation for subacute stroke patients and medical costs and readmission ratio during the year after discharge. DESIGN: This was a natural experiment study. SETTING AND PARTICIPANTS: We identified individuals with a diagnosis of cerebrovascular disorder (ICD-10: I60-I69 cerebrovascular disease) in an insurance claims database in Japan from January 2005 to December 2017. From the database, 980 patients who were admitted to a convalescent rehabilitation unit with stroke were identified. After excluding 575 patients, 405 were eligible for the study. METHODS: In Japan, from April 2011, a new policy was established that allows special costs to be added as rehabilitation time increases. This policy provides an additional medical fee for inpatients in a convalescent rehabilitation unit who receive more than 120 minutes of rehabilitation therapy. We defined high-intensity rehabilitation as transfer from hospitalization to a convalescent rehabilitation unit after April 2011. Outcomes were total direct medical costs and readmission ratio during the year after discharge from the convalescent rehabilitation unit. RESULTS: Daily rehabilitation time, total rehabilitation time, and total medical costs of the high-intensity rehabilitation group were significantly higher than those of the low-intensity rehabilitation group (P < .001, P < .001, P = .011, respectively). However, there was no significant difference in the medical costs during the year after discharge (P = .653) or in the readmission ratio (hazard ratio: 1.09, 95% confidence interval: 0.55-2.18, P = .804). CONCLUSIONS AND IMPLICATIONS: Intensive rehabilitation did not reduce medical costs or the readmission ratio during the first year after discharge. Future studies should consider the necessary rehabilitation intensity given the severity of the patient's condition, using large sample sizes.

Effects of collaborative consultation using iPad application in school-based occupational therapy: A single-arm pre-post pilot study.

INTRODUCTION: This pilot study examined the effect of collaborative consultation with teachers in school-based occupational therapy (SBOT) using iPad application for goal-setting-Aid for Decision-Making in Occupation Choice for School (ADOC-S). METHOD: A single arm pre-post intervention design was conducted at four preschools in Japan. The participants were 10 preschool teachers (10.5 ± 0.4 years of teaching), and 10 children (3.8 ± 0.4 years old; five boys). The teachers received three collaborative consultations (1 hr for each) from one occupational therapist. Firstly, the occupational therapist conducted an observational assessment of the child's school life, then the teacher and occupational therapist identified occupation-based goals for each child using the ADOC-S. Secondly, the teacher and the occupational therapist developed the graded goals using the Goal Attainment Scale (GAS) and discussed the daily intervention plan for the teachers to conduct. Thirdly, the occupational therapist followed up on the intervention process using GAS. The subjective outcome was measured at 10 point-satisfaction and performance score in each goal using Canadian Occupational Performance Measure (COPM). The observed outcome was measured using GAS and Strengths and Difficulties Questionnaire (SDQ). RESULTS: All the participants including teachers and children successfully underwent the intervention process. Significant improvement was found pre-post and effect size (ES) was large on the COPM (ES; r = .85-.94), GAS (ES; r = .98-.99) and SDQ (ES; r = .64). All goals (30/30) exceeded expectations of GAS from zero to +2. CONCLUSION: Although there are some limitations and considerations which need to be resolved for future studies, our results suggest that ADOC-S would help build a rapport with a teacher in SBOT settings, and this collaborative consultation would facilitate a positive outcome.

Differences in the occupational therapy goals of clients and therapists affect the outcomes of patients in subacute rehabilitation wards: a case-control study.

[Purpose] This study aimed to examine the effects of differences in the goals recognized by the client and the occupational therapist on patient outcome. [Participants and Methods] A retrospective case-control study was conducted to compare rehabilitation outcomes of cases wherein the occupational therapy goals were matched/unmatched (control) with those of the patients in seven subacute rehabilitation wards in Japan. The outcomes were Functional Independence Measure, number of days of hospitalization, occupational therapy, and total medical cost. [Results] The motor Functional Independence Measure scores in the matched-goal group were significantly higher than those of the unmatched-goal group, and the home discharge rate showed a tendency to increase. It was speculated whether the client had received an explanation about the goal. [Conclusion] Rehabilitation outcome may vary depending on whether occupational therapy goals are matched.

Cost and outcome of occupation-based practice for community dwelling frail elderly: a pilot study.

PURPOSE: The purpose of this pilot study was to determine the effectiveness and costs of the occupation-based practice for community dwelling frail elderly. DESIGN: Pilot pre-post design without a control group. SETTING: A care management center involving 37 local elderly. SUBJECT: The final analysis included 26 frail elderly in a community dwelling center. INTERVENTION: The intervention was occupation-based practice involving setting of client-centered goals, observation of real living situations, and provision of advice on the individual problem of real occupation. OUTCOME: The outcome was the Frenchay Activities Index (FAI), which is used to evaluate the instrumental activities of daily living (IADL). Additionally, the frequency, duration, and cost of the intervention were calculated. RESULTS: Regarding the FAI score before and after the interventions, there were significant improvements in all items except work (P<0.05, effect size [r]: 0.67-0.93). A total of 15 people out of 26 (57.7%) showed improvement in activities of daily living. The frequency of interventions was 3.7 (95% confidence interval [CI]: 2.83-4.48), and the duration was 7.4 weeks (95% CI: 5.27-9.42). The average intervention cost was $258 (95% CI: 200.4-317.4). CONCLUSION: The results of this study showed that occupation-based practice has a potential to improve IADL in frail elderly, with low frequency of intervention, within a short-term, and direct cost reduction. We believe that this pilot study will contribute to future clinical studies for frail elderly, and the findings can be easily applied to daily clinical intervention. A well-designed prospective randomized-controlled trial is necessary to verify these results.

Cost effectiveness of the occupation-based approach for subacute stroke patients: result of a randomized controlled trial.

BACKGROUND AND PURPOSE: The cost effectiveness of occupational therapy for subacute stroke patients is unclear in the extant literature. Consequently, this study determined the cost effectiveness of the occupation-based approach using Aid for Decision-Making in Occupation Choice (ADOC) for subacute stroke patients compared with an impairment-based approach. METHODS: We conducted an economic evaluation from a societal perspective alongside a pilot randomized controlled trial, with a single blind assessor for participants in 10 subacute rehabilitation units in Japan. The intervention group received occupation-based goal setting using ADOC, with interventions focused on meaningful occupations. The control group received an impairment-based approach focused on restoring capacities. For both groups, occupational-therapy intervention was administered more than five times per week, for over 40 min each time, and they received physical and speech therapy prior to discharge. The main outcomes were quality-adjusted life years (QALYs) and total costs. Further, sensitivity analyses were performed to examine the influence of parameter uncertainty on the base case results. RESULTS: The final number of participants was 24 in each of the two groups. In terms of QALYs, the intervention group is significantly higher than the control group (p = 0.001, difference 95% CI: 0.002-0.008) and total costs are not statistically significant. Applying a willingness-to-pay threshold of JPY 5 million/QALY, the probability of the occupation-based approach using ADOC being cost effective was estimated to be 65.3%. CONCLUSIONS: The results show that the occupation-based approach is associated with significantly improved QALYs and has potential cost effectiveness, compared with the impairment-based approach.

Correction: Hierarchy of Dysfunction Related to Dressing Performance in Stroke Patients: A Path Analysis Study.

[This corrects the article DOI: 10.1371/journal.pone.0151162.].

Effectiveness and Cost-Effectiveness of Occupation-Based Occupational Therapy Using the Aid for Decision Making in Occupation Choice (ADOC) for Older Residents: Pilot Cluster Randomized Controlled Trial.

BACKGROUND: Care-home residents are mostly inactive, have little interaction with staff, and are dependent on staff to engage in daily occupations. We recently developed an iPad application called the Aid for Decision-making in Occupation Choice (ADOC) to promote shared decision-making in activities and occupation-based goal setting by choosing from illustrations describing daily activities. This study aimed to evaluate if interventions based on occupation-based goal setting using the ADOC could focus on meaningful activities to improve quality of life and independent activities of daily living, with greater cost-effectiveness than an impairment-based approach as well as to evaluate the feasibility of conducting a large cluster, randomized controlled trial. METHOD: In this single (assessor)-blind pilot cluster randomized controlled trial, the intervention group (ADOC group) received occupational therapy based on occupation-based goal setting using the ADOC, and the interventions were focused on meaningful occupations. The control group underwent an impairment-based approach focused on restoring capacities, without goal setting tools. In both groups, the 20-minute individualized intervention sessions were conducted twice a week for 4 months. MAIN OUTCOME MEASURES: Short Form-36 (SF-36) score, SF-6D utility score, quality adjusted life years (QALY), Barthel Index, and total care cost. RESULTS: We randomized and analyzed 12 facilities (44 participants, 18.5% drop-out rate), with 6 facilities each allocated to the ADOC (n = 23) and control (n = 21) groups. After the 4-month intervention, the ADOC group had a significantly greater change in the BI score, with improved scores (P = 0.027, 95% CI 0.41 to 6.87, intracluster correlation coefficient = 0.14). No other outcome was significantly different. The incremental cost-effectiveness ratio, calculated using the change in BI score, was $63.1. CONCLUSION: The results suggest that occupational therapy using the ADOC for older residents might be effective and cost-effective. We also found that conducting an RCT in the occupational therapy setting is feasible. TRIAL REGISTRATION: UMIN Clinical Trials Registry UMIN000012994.

Hierarchy of Dysfunction Related to Dressing Performance in Stroke Patients: A Path Analysis Study.

Previous reports indicated that various dysfunctions caused by stroke affect the level of independence in dressing. These dysfunctions can be hierarchical, and these effects on dressing performance can be complicated in stroke patients. However, there are no published reports focusing on the hierarchical structure of the relationships between the activities of daily living and balance function, motor and sensory functions of the affected lower limb, strength of the abdominal muscles and knee extension on the unaffected side, and visuospatial deficits. The purpose of this study was to elucidate the hierarchical and causal relationships between dressing performance and these dysfunctions in stroke patients. This retrospective study included 104 first-time stroke patients. The causal relationship between the dressing performance and age, time post stroke, balance function, motor and sensory functions of the affected lower limb, strength of the abdominal muscles and knee extension on the unaffected side, and visuospatial deficits were examined using path analysis. A hypothetical path model was created based on previous studies, and the goodness of fit between the data and model were verified. A modified path model was created that achieved an almost perfect fit to the data. Balance function and abdominal muscle strength have direct effects on dressing performance, with standardized direct effect estimates of 0.78 and 0.15, respectively. Age, motor and sensory functions of the affected lower limb, and strength of abdominal muscle and knee extension on the unaffected side have indirect effects on dressing by influencing balance function. Our results suggest that dressing performance depends strongly on balance function, and it is mainly influenced by the motor function of the affected lower limb.

Cost-effectiveness of Occupational Therapy in Older People: Systematic Review of Randomized Controlled Trials.

A systematic review of the cost-effectiveness of occupational therapy for older people was conducted. MEDLINE, CINAHL, Web of Science, PsycINFO, Cochrane Library, OT seeker and unpublished trials registers were searched. Reference lists of all potentially eligible studies were searched with no language restrictions. We included trial-based full economic evaluations that considered both costs and outcomes in occupational therapy for older people compared with standard care (i.e. other therapy) or no intervention. We reviewed each trial for methodological quality using the Cochrane risk of bias tool and assessed the quality of economic evaluations using a Drummond checklist. In the results of this review, we included five eligible studies (1-5) that were randomized controlled trials with high-quality economic evaluation. Two studies were full economic evaluations of interventions for fall prevention (1 and 2); two studies were full economic evaluations of preventive occupational therapy interventions (3 and 4; one was a comparison of an occupational therapy group with a social work group); one study was a full economic evaluation of occupational therapy for individuals with dementia (5). Two of the studies (one was preventive occupational therapy [3] and the other was occupational therapy for dementia [5]) found a significant effect and confirmed the cost-effectiveness of occupational therapy for older people compared with the control group. These studies found that occupational therapy for older people was clinically effective and cost-effective in comparison with standard care or other therapies. With reference to their clinical implication, these intervention studies (using a client-centred approach) suggested potentially cost-effective means to motivate clients to maintain their own health. However, this review has limitations because of the high heterogeneity of the reviewed studies on full economic evaluations of occupational therapy for older people. Future studies on the cost-effectiveness of occupational therapy in older people are strongly warranted. Copyright © 2015 John Wiley & Sons, Ltd.

Isolation of oxygenase genes for indigo-forming activity from an artificially polluted soil metagenome by functional screening using Pseudomonas putida strains as hosts.

Metagenomes contain the DNA from many microorganisms, both culturable and non-culturable, and are a potential resource of novel genes. In this study, a 5.2-Gb metagenomic DNA library was constructed from a soil sample (artificially polluted with four aromatic compounds, i.e., biphenyl, phenanthrene, carbazole, and 3-chlorobenzoate) in Escherichia coli by using a broad-host-range cosmid vector. The resultant library was introduced into naphthalene-degrading Pseudomonas putida-derived strains having deficiencies in their naphthalene dioxygenase components, and indigo-forming clones on the indole-containing agar plates were screened. Cosmids isolated from 29 positive clones were classified by their various properties (original screening hosts, hosts showing indigo-forming activity, and digestion patterns with restriction enzymes), and six representative cosmids were chosen. Sequencing and in vitro transposon mutagenesis of the six cosmids resulted in the identification of genes encoding putative class B and D flavoprotein monooxygenases, a multicomponent hydroxylase, and a reductase that were responsible for the indigo-forming activity in the host cells. Among them, the genes encoding the multicomponent hydroxylase were demonstrated to be involved in phenol degradation. Furthermore, two genes encoding ring-cleavage dioxygenases were also found adjacent to the genes responsible for the indigo formation, and their functions were experimentally confirmed.

Comparison of occupation-based and impairment-based occupational therapy for subacute stroke: a randomized controlled feasibility study.

OBJECTIVE: To compare occupation-based and impairment-based approaches in occupational therapy and determine the feasibility of patient recruitment and retention. DESIGN: A multicenter, randomized, controlled pilot trial with a single blind assessor. SETTING: Ten subacute rehabilitation units in Japan. PARTICIPANTS: Fifty-four patients with subacute stroke. INTERVENTIONS: The experimental group used the iPad application, Aid for Decision-making in Occupation Choice, to establish occupation-based goals, and evaluation and intervention were conducted mainly through real occupations. The control group was evaluated according to patients' generic abilities and activities of daily living (ADL), and the intervention mainly involved the impairment-based approach. MAIN OUTCOME MEASURES: Short Form-36, Functional Independence Measure, Brunnstrom recovery stages, The Client Satisfaction Questionnaire, and length of hospital stay. RESULTS: Of the 1465 potential participants, 54 (3%) subacute stroke patients were enrolled over 16 months and 68% (n = 36) were retained to the 2-month assessment: experimental group (n = 16); control group (n = 21). Although there was no significant intergroup difference for any outcomes, the experimental group had a small effect size advantage on the Short Form-36 "General health" (d = 0.42) and "Role emotional" (d = 0.43) subscales relative to the control group. A sample of 118 subacute stroke patients per group would be required for a lager study. CONCLUSIONS: Results suggest that the occupation-based approach has more potential to improve "General health" and "Role emotional" scores on the Short Form-36 than the impairment-based approach. Further investigation of study protocol with interventions and recruiting is needed prior to a larger trial.

Examination of a cut-off score to express the meaningful activity of people with dementia using iPad application (ADOC).

PURPOSE: To determine a quantifiable measure to identify patients with dementia who can choose an illustration of meaningful activity using an iPad application, Aid for Decision-making in Occupation Choice (ADOC). METHOD: We recruited 116 patients from 5 institutions in Japan. Occupational therapists interviewed patients with dementia to determine meaningful activities using ADOC. The most meaningful activity was confirmed by their primary caregivers. The cut-off was estimated from Mini-Mental State Examination (MMSE). RESULTS: Receiver operating characteristic analysis indicated that an MMSE score of 8 was the cut-off for choosing meaningful activities using ADOC. Sensitivity and specificity was 91.0% and 74.1%, respectively, and the area under the curve value was 0.89. CONCLUSION: ADOC can provide individualized information regarding meaningful activities for patients with moderate dementia. Implications for Rehabilitation As dementia progresses, difficulty in expressing needs or desires regarding meaningful activity may increase. The iPad application (Aid for Decision-making in Occupation Choice; ADOC) can be useful to promote shared decision-making through a systematic goal-setting process involving a choice of 95 illustrations describing daily activities. Mini-Mental State Examination (MMSE) score greater than 8 points is required to use the ADOC to choose most meaningful activities. ADOC provides individual information regarding meaningful activities for patients with moderate dementia.

Reliability and validity of individualized satisfaction score in aid for decision-making in occupation choice.

PURPOSE: The iPad application aid for decision-making in occupation choice (ADOC) was developed to measure the client's satisfaction with individualized occupational performance of meaningful and purposeful activities. The present study examined the reliability and validity of individualized satisfaction measurement using the ADOC. METHOD: The Japanese version of the ADOC was used by 36 occupational therapists on 92 of their clients (44 males, 48 females, mean age 66.4 ± 17.8 years). Convergent and discriminant validity were examined using Pearson's correlation between ADOC satisfaction score and the Life Satisfaction Index K (LSIK) factors: Factor 1 (satisfaction with life), Factor 2 (optimistic and positive disposition) and Factor 3 (evaluation of own aging). Test-retest reliability was assessed using the intraclass correlation coefficient (ICC). RESULTS: Ninety-two clients completed the validation study. Satisfaction with ADOC significantly correlated with LSIK Factor 1 (r = 0.297, p < 0.01), but not with Factors 2 or 3 (r = -0.045 and -0.089, respectively). Of the 92 clients, 78 participated in the test-retest reliability study. Good to moderate correlation was revealed (ICC = 0.712, p < 0.001). CONCLUSIONS: The Japanese version of the ADOC is a valid and reliable instrument for measuring client satisfaction with individualized occupational performance.