Reliability and validity of the Japanese version of the Parenting Concerns Questionnaire.

OBJECTIVE: Cancer patients with children are increasing; however, few studies have quantitatively assessed the parenting concerns of cancer patients with children. The Parenting Concerns Questionnaire was developed in the USA in 2012 and is the only instrument to measure the parenting concerns of cancer patients with children. This study aimed to develop a Japanese version of the Parenting Concerns Questionnaire and evaluate its reliability and validity. METHODS: An Internet survey was conducted among cancer patients registered with 'Cancer Parents', an Internet community site for cancer patients, who have children aged <18 years, and 174 responses were recorded. Two weeks later, a retest was conducted, and responses were obtained from 87 patients. RESULTS: Based on confirmatory factor analysis of the factor structure proposed by the authors of the original version, factors 'I. The impact of my illness on the child's daily life (five items)', 'II. The impact of my illness on the child's feelings (five items)' and 'III. Concerns about my parenting partner (five items)' were consistent with the original version. Cronbach's alpha coefficients for all items and by factors were 0.86, 0.79, 0.86 and 0.86. The Parenting Concerns Questionnaire total scores correlated with Hospital Anxiety and Depression Scale (r = 0.52), the Functional Assessment of Cancer Therapy General (r = -0.56), Family Assessment Device-General Functioning (r = 0.51) and Multidimensional Scale of Perceived Social Support (r = -0.47). The intraclass correlation coefficients for all items and by factors were 0.81, 0.71, 0.77 and 0.85. CONCLUSIONS: The Japanese version of the Parenting Concerns Questionnaire has satisfactory reliability and validity.

A palliative care goals model for people with dementia and their family: Consensus achieved in an international Delphi study.

BACKGROUND: Advance care planning in dementia includes supporting the person and their family to consider important goals of care. International research reports the importance of psycho-social-spiritual aspects towards end of life. AIM: To develop a multidimensional international palliative care goals model in dementia for use in practice. DESIGN: International Delphi study integrating consensus and evidence from a meta-qualitative study. The Delphi panel rated statements about the model on a 5-point agreement scale. The criteria for consensus were pre-specified. SETTING/PARTICIPANTS: Seventeen researchers from eight countries developed an initial model, and 169 candidate panellists were invited to the international online Delphi study. RESULTS: Panellists (107; response 63.3%) resided in 33 countries. The model comprised four main care goals: (1) Comfort ensured; (2) Control over function maintained; (3) Identity protected and personhood respected and (4) Coping with grief and loss-person and caregiver supported. The model reflects how needs and care goals change over time with the progression of dementia, concluding with bereavement support. The first version of the model achieved a consensus after which it was slightly refined based on feedback. We did not achieve a consensus on adding a goal of life prolongation, and on use of the model by people with dementia and family themselves. CONCLUSION: A new palliative care goals model for people with dementia and their families includes relationship aspects for use by professionals and achieved a consensus among a panel with diverse cultural background. The position of life prolongation in relation to palliative care goals needs further research.

Preferences of bereaved family members on communication with physicians when discontinuing anticancer treatment: referring to the concept of nudges.

BACKGROUND: This study aimed to clarify the situation and evaluate the communication on anticancer treatment discontinuation from the viewpoint of a bereaved family, in reference to the concept of nudges. METHODS: A multi-center questionnaire survey was conducted involving 350 bereaved families of patients with cancer admitted to palliative care units in Japan. RESULTS: The following explanations were rated as essential or very useful: (i) treatment would be a physical burden to the patient (42.9%), (ii) providing anticancer treatment was impossible (40.5%), (iii) specific disadvantages of receiving treatment (40.5%), (iv) not receiving treatment would be better for the patient (39.9%) and (v) specific advantages of not receiving treatment (39.6%). The factors associated with a high need for improvement of the physician's explanation included lack of explanation on specific advantages of not receiving treatment (ß = 0.228, P = 0.001), and lack of explanation of 'If the patient's condition improves, you may consider receiving the treatment again at that time.' (ß = 0.189, P = 0.008). CONCLUSIONS: Explaining the disadvantages of receiving treatment and the advantages of not receiving treatment, and presenting treatment discontinuation as the default option were effective in helping patients' families in making the decision to discontinue treatment. In particular, explanation regarding specific advantages of not receiving treatment was considered useful, as they caused a lower need for improvement of the physicians' explanation.

Associations of nutrition impact symptoms with dietary intake and eating-related distress in patients with advanced cancer.

BACKGROUND & AIMS: There is no definition of nutrition impact symptoms (NISs) in cancer care. Moreover, there is a lack of evidence on the associations of NISs with dietary intake and eating-related distress (ERD) in advanced cancer. Therefore, this study aimed to determine the associations of NISs with dietary intake and ERD in patients with advanced cancer. METHODS: This study entailed a secondary analysis of a multicenter self-reported questionnaire designed to develop measurements that assess ERD experienced by patients. Participants evaluated their dietary intake and 19 symptoms regarded as NISs using a 10-point scale. To determine the association between dietary intake and the number of NISs with a score ≥4, estimated adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for the logistic regression model were calculated. Furthermore, to assess the association between ERD and the number of NISs with a score ≥4, multiple regression analysis was performed. RESULTS: A total of 302 patients were included in the analysis. The higher the number of NISs with a score ≥4, the lower the dietary intake tended to be. In the logistic regression model, significantly higher adjusted ORs than in the no NISs with a score ≥4 group were observed in the 4-6 NISs group, 7-9 NISs group, and 10 or more group (0.19 [95% CI, 0.07-0.52], p = 0.001; 0.11 [95% CI, 0.03-0.42], p = 0.001; 0.07 [95% CI, 0.01-0.36], p = 0.002, respectively). In the multiple regression analysis, the number of NISs with a score ≥4 was identified as one of the factors significantly associated with ERD. CONCLUSIONS: Having 4 or more NISs with a score ≥4 was shown to be predictive of the likelihood of reduced dietary intake. Furthermore, the higher the number of NISs with a score ≥4, the more likely the eating-related quality of life was impaired in advanced cancer.

Development of a short form of the Japanese version of the Caregiver Reaction Assessment (CRA-J-10) among informal caregivers of older adults.

AIM: To support informal caregivers, a simple assessment tool capturing the multidimensional nature of caregiving experiences, including negative and positive aspects, is required. We developed a short form of the Japanese version of the Caregiver Reaction Assessment (CRA-J), a multidimensional assessment scale for caregiver experiences. METHODS: The internet survey involved 934 Japanese informal caregivers aged 20-79 years (mean age = 58.8 years; 50.2% women) who completed questionnaires, including the CRA-J 18 items (CRA-J-18), consisting of five domains, such as impacts on schedule and finances and positive experiences of caregiving. A 10-item short version of the CRA-J (CRA-J-10; 0-50 points), which was prepared by selecting the two items with the highest factor loadings from each domain, was tested for model fit by confirmatory factor analysis (CFA) and was analyzed for correlations with the CRA-J-18, Zarit Burden Interview (ZBI), Positive Aspects of Caregiving Scale (PACS), Patient Health Questionnaire-9 (PHQ-9), and WHO-Five Well-Being Index (WHO-5). The area under the curve (AUC) in the receiver operating characteristic was evaluated as discriminability for depressive symptoms (PHQ-9 ≥ 10 points). RESULTS: The CFA indicated a good model fit in the CRA-J-10. The CRA-J-10 correlated well with the CRA-J-18 and other variables (CRA-J-18, r = 0.970; ZBI, r = 0.747; PACS, r = -0.467; PHQ-9, r = 0.582; WHO-5, r = -0.588) and showed good discriminant performance for the presence of depressive symptoms (AUC = 0.793, 95% confidence interval = 0.762-0.823). CONCLUSIONS: The CRA-J-10 allows a simple assessment of caregiver experiences, helping support informal caregivers. Geriatr Gerontol Int 2024; 24: 290-296.

Development of quality indicators for palliative care in intensive care units and pilot testing them via electronic medical record review.

BACKGROUND: Patients in intensive care units (ICUs) often require quality palliative care for relief from various types of suffering. To achieve quality palliative care, specific goals need to be identified, measured, and reported. The present study aimed to develop quality indicators (QIs) for palliative care in ICUs, based on a systematic review and modified Delphi method, and test their feasibility by reviewing electronic medical record (EMR) data. METHODS: The current study was performed in two phases: the development of QIs using the modified Delphi method, and pilot-testing the quality of palliative care in ICUs based on EMR review. The pilot test included 262 patients admitted to the general or emergency ICU at a university hospital from January 1, 2019, to June 30, 2019. RESULTS: A 28-item QI set for palliative care in ICUs was developed based on the consensus of 16 experts. The Delphi process resulted in low measurability ratings for two items: "Assessment of the patient's psychological distress" and "Assessment of the patient's spiritual and cultural practices." However, these items were determined to be important for quality care from the perspective of holistic assessment of distress and were adopted in the final version of the QI set. While the pilot test results indicated the feasibility of the developed QIs, they suggested that the frequency of care performance varied, and certain aspects of palliative care in ICUs needed to be improved, namely (1) regular pain assessment, (2) identification of the patient's advance directive and advance care planning for treatment, (3) conducting an interdisciplinary family conference on palliative care, and (4) assessment of psychological distress of family members. CONCLUSIONS: The QI set, developed using the modified Delphi method and tested using EMR data, provided a tool for assessing the quality of palliative care in ICUs. In the two ICUs considered in this study, aspects of the palliative care process with a low performance frequency were identified, and further national surveys were recommended. It is necessary to conduct ongoing surveys at more facilities to improve the quality of palliative care in ICUs.

Factors associated with the preparedness for bereavement in families of patients with cancer: A secondary analysis of a nationwide bereaved family survey.

OBJECTIVES: Insufficient preparedness for bereavement can affect a family's psychological health status after bereavement. However, factors associated with preparedness remain unclear. This study aimed to identify factors associated with preparedness for bereavement in families of patients with cancer. METHODS: We conducted a secondary analysis of a nationwide bereaved family survey in Japan, analyzing data from 9123 family members of patients with cancer. Logistic regression analysis was conducted to explore how sociodemographic factors, health status, and perceived care for patients and families were associated with preparedness for bereavement. RESULTS: Of the 9123 families, 1338 (15.1%) were not prepared for bereavement. Factors associated with insufficient preparedness for bereavement (all p < 0.001) were found as follows: patients' spouses (OR = 2.54), receiving care in acute hospitals (OR = 1.83), worse psychological health status during caregiving (OR = 2.13), lower social support for family members (OR = 1.90), wrong patients' awareness of medical condition from family's perspective (OR = 1.75-2.12), family preference of more aggressive treatment rather than palliative care (OR = 1.71) or not sure (OR = 2.31), not wanting to know information about the patient's prognosis (OR = 1.64-1.77), end-of-life discussion with physician 1 month before patient's death (OR = 1.45), and late or early end-of-life discussions with physician and family (OR = 1.78-1.95). CONCLUSIONS: This study's results might assist clinicians in assessing and identifying families who are not prepared for bereavement; however, preparedness for bereavement may have been associated with other factors.

Cancer Pain Management in Patients Receiving Inpatient Specialized Palliative Care Services.

CONTEXT: Cancer pain is a common complication that is frequently undertreated in patients with cancer. OBJECTIVES: This study is aimed at assessing the time needed to achieve cancer pain management goals through specialized palliative care (SPC). METHODS: This was a multicenter, prospective, longitudinal study of inpatients with cancer pain who received SPC. Patients were continuously followed up until they considered cancer pain management successful, and we estimated this duration using the Kaplan-Meier method. We investigated the effectiveness of pain management using multiple patient-reported outcomes (PROs) and quantitative measures, including pain intensity change in the Brief Pain Inventory. A paired-sample t-test was used to compare the pain intensity at the beginning and end of the observation period. RESULTS: Cancer pain management based on the PROs was achieved in 87.9% (385/438) of all cases. In 94.5% (364/385) of these cases, cancer pain management was achieved within 1 week, and the median time to pain management was 3 days (95% confidence interval [CI], 2-3). The mean worst pain intensity in the last 24 h at the start and end of observation were 6.9 ± 2.2 and 4.0 ± 2.3, respectively, with a difference of -2.9 (95% CI, -3.2 to -2.6; p < 0.01). Overall, 81.6% of the patients reported satisfaction with cancer pain management, and 62 adverse events occurred. CONCLUSION: SPC achieved cancer pain management over a short period with a high level of patient satisfaction resulting in significant pain reduction and few documented adverse events.

Continuous Electrocardiographic Monitoring for 24 Hours Before Death in Patients with Terminal Cancer.

BACKGROUND: Purposeless physiological monitoring at the end-of-life is not recommended. However, studies on how families feel regarding the death of patients with terminal cancer without continuous electrocardiographic monitoring (CEM) are lacking. OBJECTIVES: To explore the impact on the quality of care and the feelings and psychological distress experienced by families when CEM is not used during the 24 hours preceding a patient's death. METHODS: In this multicenter cross-sectional, self-report questionnaires were distributed to 1087 bereaved families at Japanese specialized palliative care units in 2018. RESULTS: Out of 671 responses, 394 valid responses were analyzed. Families of nonmonitored patients (NM-group) accounted for 79.2%, while those with bedside electrocardiogram monitoring (MB-group) and remote nurse station monitoring (MC-group) comprised 11.9% and 8.9%, respectively. In the NM-group, 85.5% expressed satisfaction without CEM, which was more than 10% lower than other groups. While 14% in the NM-group desired patient monitoring, families who received adequate explanations about CEM had lower proportions compared to the MB-group (P = .021). Univariate analyses showed no significant differences in evaluations of the quality of care and families' psychological distress (mean scores of Overall Care Satisfaction, Care Evaluation Scale, Good Death Inventory, Brief Grief Questionnaires) across all groups. CONCLUSION: While the majority of NM-group were satisfied with their patient's care without CEM, the proportion of dissatisfied families was higher than in other groups. Although not using CEM is not a major hindrance to end-of-life care for patients with terminal cancer, providing sufficient explanations may be important for satisfactory care.

Need for Improvement in Death Pronouncements in Palliative Care Units.

Background: Death pronouncement is an important moment that can impact a family's bereavement process; however, necessary improvements in physicians' behavior during death pronouncement remain unclear. Objectives: To explore whether the lack of certain behaviors by the physician was associated with a perceived need for improving death pronouncement for advanced cancer patients in palliative care units (PCUs). Methods: This study was a secondary analysis of a nationwide multicenter questionnaire survey conducted in 2018 that targeted bereaved family members of cancer patients who died in PCUs. We performed univariate analysis to investigate the need to improve behavior toward death pronouncement. We performed bivariate analysis to investigate the relationship among the need for improvement in behavior toward death pronouncement, physician attribution (primary responsible physician, a member of the same team, and another physician), and nine specific behaviors. Results: Four hundred twenty-two questionnaires (64.2%) were returned. We analyzed 356 responses and found that 32.5% perceived the need to improve death pronouncement. Lack of certain behaviors at death pronouncement, especially not explicitly explaining the cause of death to family members (odds ratio: 11.89, p < 0.001), were positively associated with the need for improvement. There were significant differences among the types of physician attribution regarding the need for improvement (primary responsible physician vs. a member of the same team vs. another physician [15.1% vs. 42.6% vs. 45.7%, p < 0.001]). Conclusion: There was a significant positive association between the lack of certain behaviors toward death pronouncement and the need for improvement. The major lack of behavior toward death pronouncement was not explicitly explaining the cause of death to family members and not calling out to the patient before beginning the patient's examination.

Ambulance use and emergency department visits among people with dementia: A cross-sectional survey.

This study aimed to explore factors associated with ambulance use and emergency department (ED) visits among people with dementia in the month before death. A web-based survey of bereaved family caregivers of people with dementia was conducted in March 2020. Multivariate logistic regression analyses were conducted with ambulance use and ED visits in the month before death as dependent variables. Age and gender of people with dementia and their family caregivers, home care use, decision-makers, comorbidities, degree of independence in daily living, and caregivers' preparedness for death were independent variables. Data were collected from 817 caregivers of people with dementia who had died at hospitals (52.4%), long-term care facilities (25.0%), or own homes (22.4%). Caregivers' lack of preparedness for death was significantly associated with ambulance use in the month before death. Comorbidites and males with dementia were significantly associated with ED visits in the month before death. Better death preparedness of family caregivers may reduce ambulance use for symptoms that can be more effectively addressed by palliative care than acute care for people with dementia.

End-of-Life Discussions and Their Timing for Patients With Cardiovascular Diseases　- From the Perspective of Bereaved Family Members.

BACKGROUND: Enhanced discussions regarding end-of-life (EOL) are crucial to provide appropriate care for seriously ill patients. However, the current status of EOL discussions, especially their timing and influencing factors, among patients with cardiovascular diseases (CVD) remains unknown.Methods and Results: We conducted a cross-sectional questionnaire survey of bereaved family members of CVD patients who died at 10 tertiary care institutes in Japan. In all, 286 bereaved family members (38.2% male; median age 66.0 [interquartile range 58.0-73.0] years) of CVD patients were enrolled; of these, 200 (69.9%) reported that their families had had EOL discussions with physicians. The major topic discussed was resuscitation (79.0%), and 21.5% discussed the place of EOL care. Most discussions were held during hospitalization of the patient (88.2%). More than half (57.1%) the discussions were initiated less than 1 month before the patient died, and 22.6% of family members felt that this timing of EOL discussions was late. Bereaved family members' perception of late EOL discussions was associated with the family members aggressive attitude towards life-prolonging treatment, less preparedness for bereavement, and less satisfaction with EOL care. CONCLUSIONS: Approximately 70% of bereaved family members of CVD patients had EOL discussions, which were often held shortly before the patient died. Further research is required to establish an ideal approach to EOL discussions at an appropriate time, which may improve the quality of EOL care.

Aggressive End-of-Life Treatments Among Inpatients With Cancer and Non-cancer Diseases Using a Japanese National Claims Database.

To describe aggressive treatments at end-of-life among inpatients with cancer and non-cancer diseases and to evaluate factors associated with these treatments using the Japanese national database (NDB). We conducted a retrospective cohort study among inpatients aged ≥ 20 years who died between 2012 and 2015 using a sampling dataset of NDB. The outcome was the proportion of aggressive treatments in the last 14 days of life. We considered the underlying causes of death as cancer, dementia/senility, and heart, cerebrovascular, renal, liver, respiratory, and neurodegenerative diseases. We analyzed 54,105 inpatients, with underlying cause of death distributed as follows: cancer, 24.9%; heart disease, 16.5%; respiratory disease, 12.3%; and cerebrovascular disease, 9.7%. The proportion of intensive care unit (ICU) admission was 9.7%, being the highest in heart disease (20.5%), followed by cerebrovascular diseases (12.6%), and least in dementia/senility (.6%). The proportion of cardiopulmonary resuscitation was 19.6%, being the highest in heart disease (38.1%), followed by renal diseases (19.5%), and least in cancer (6.2%). Multivariate logistic regression analysis revealed that having heart diseases, cerebrovascular diseases, younger age, less comorbidities, and shorter length of stay were associated with an increasing risk of aggressive treatments in the last 14 days of life. The proportion of aggressive treatments at the end-of-life varies depending on the disease; additionally, these treatments were associated with having heart diseases, younger age, less comorbidity, and shorter length of stay. Our findings may help develop and set benchmarks for quality indicators at the end-of-life for patients with non-cancer diseases.

Prevalence of opioid-induced adverse events across opioids commonly used for analgesic treatment in Japan: a multicenter prospective longitudinal study.

PURPOSE: Although opioids have been shown to be effective for cancer pain, opioid-induced adverse events (AEs) are common. To date, little is known about the differences in risks of AEs by opioid type. This study was performed to compare the prevalence of AEs across opioids commonly used for analgesic treatment in Japan. METHODS: This study was conducted as a preplanned secondary analysis of a multicenter prospective longitudinal study of inpatients with cancer pain who received specialized palliative care for cancer pain relief. We assessed daily AEs until termination of follow-up. We rated the severity of AEs based on the Common Terminology Criteria for Adverse Events version 5.0. We computed adjusted odds ratios for each AE (constipation, nausea and vomiting, delirium, and drowsiness) with the following variables: opioid, age, sex, renal dysfunction, and primary cancer site. RESULTS: In total, 465 patients were analyzed. Based on the descriptive analysis, the top four most commonly used opioids were included in the analysis: oxycodone, hydromorphone, fentanyl, and tramadol. With respect to the prevalence of AEs among all analyzed patients, delirium (n = 25, 6.3%) was the most frequent, followed by drowsiness (n = 21, 5.3%), nausea and vomiting (n = 19, 4.8%), and constipation (n = 28, 4.6%). The multivariate logistic analysis showed that no single opioid was identified as a statistically significant independent predictor of any AE. CONCLUSION: There was no significant difference in the prevalence of AEs among oxycodone, fentanyl, hydromorphone, and tramadol, which are commonly used for analgesic treatment in Japan.

Web-Based Post-Bereavement Survey System in Specialized Palliative Care: A Feasibility Pilot Study.

Web-based post-bereavement survey systems for specialized palliative care will enable obtaining timely results on the care quality from more participants at a lower cost. The primary aim of the study was to develop a web-based post-bereavement survey system and to compare response rates for different number of items. The secondary aim was to examine response bias between web-based and mail survey in post-bereavement surveys. Between January and April 2019, two cross-sectional web-based questionnaire surveys were conducted among the bereaved families from six inpatient palliative care units in Japan. Measurements included structure and process of end-of-life (EOL) care, overall care satisfaction, achievement of a good death, depression, grief status, web survey usability, and participant and bereaved family member characteristics. The long survey included 34 items, and the short survey included 16 items. There were no significant differences in the response rates between the long and short surveys (24% and 27%, respectively, p = 0.376). Compared with a previous nationwide post-bereavement mail survey, more children responded; however, the quality rating scores was unchanged. Despite low response rate, no apparent response bias was observed, indicating its feasibility. This survey method is low-cost, less burdensome to the institution, and allows for ongoing quality assurance.

The effect of palliative care team intervention and symptom improvement using patient-reported outcomes: a multicenter prospective observational study.

PURPOSE: Hospital-based palliative care teams (HPCTs) are widespread internationally, but multicenter studies about their effectiveness, using patient-reported outcomes (PROs), are limited to Australia and a few other countries. We conducted a multicenter, prospective observational study in Japan to explore the effectiveness of the HPCTs using PROs. METHODS: Nationwide, eight hospitals participated in the study. We included newly referred patients for one month in 2021 and followed them for one month. We asked the patients to complete the Integrated Palliative Care Outcome Scale or the Edmonton Symptom Assessment System as PROs at the time of the intervention, three days later, and weekly after the intervention. RESULTS: A total of 318 participants were enrolled, of whom 86% were patients with cancer, 56% were undergoing cancer treatment, and 20% received the Best Supportive Care. After one week, the following 12 symptoms showed more than a 60% improvement from severe to moderate or less: vomiting (100%), shortness of breath (86%), nausea (83%), practical problems (80%), drowsiness (76%), pain (72%), poor sharing of feelings with family or friends (72%), weakness (71%), constipation (69%), not feeling at peace (64%), lack of information (63%), and sore or dry mouth (61%). Symptoms with improvement from severe/moderate to mild or less were vomiting (71%) and practical problems (68%). CONCLUSION: This multicenter study showed that HPCTs effectively improved symptoms in several severe conditions, as assessed by PROs. This study also demonstrated the difficulty of relieving symptoms in patients in palliative care and the need for improved care.

Validation of the Japanese version of the full and short form Trust in Oncologist Scale.

OBJECTIVES: This study aimed to validate the Japanese versions of the Trust in Oncologist Scale (TiOS-J) and the TiOS-Short Form (TiOS-SF-J). METHODS: A cross-sectional web-based survey was conducted among cancer patients in Japan. The forward-backward translation method was used to develop the TiOS-J. The web-based survey was mailed to 633 people, of whom 309 responded. After 2 weeks, 103 among the 156 first-time respondents completed the second survey to verify the reliability of the retest method. The validity was evaluated by exploratory factor analysis (EFA), confirmatory factor analysis (CFA), Spearman's correlation coefficients between the Patient Satisfaction Questionnaire-Japanese, willingness to recommend the oncologist, trust in health care, and number of oncological consultations. To evaluate reliability, Cronbach's α and test-retest correlation were calculated. RESULTS: The theoretically driven four-factor model and the EFA-driven one-factor model of the full-form TiOS-J (18 items) did not result in an acceptable fit; however, CFA supported the one-dimensionality of the 5 items from the TiOS-SF-J (χ2 (5) = 12.36, p = 0.03, goodness-of-fit index = 0.984, adjusted goodness-of-fit index = 0.952, comparative fit index = 0.991, and root mean square error of approximation = 0.069). With regard to the reliability of TiOS-J and TiOS-SF-J, the Cronbach's alpha values were 0.94 and 0.89, respectively; the test-retest values were 0.82 and 0.78. SIGNIFICANCE OF RESULTS: This study indicated that the TiOS-J and TiOS-SF-J are valid and reliable instruments for measuring patients' trust in their oncologists and can be used to assess trust in oncologists for both clinical and research purposes.

Opioid prescriptions at the point of surgery, bone metastasis, or death among patients with breast cancer in Japanese acute care hospitals: a claims-based, retrospective, longitudinal study.

PURPOSE: Breast cancer is the most common cancer among Japanese women and often yields a better prognosis than other cancers. However, few studies have been conducted on pain control using opioids in Japan. In this study, we aimed to examine actual opioid use among breast cancer patients. METHODS: Breast cancer patients were defined as female patients with a first breast cancer diagnosis during the observational period in an acute care hospital database (April 2008 - February 2020). We examined the percentage of patients prescribed opioids, the opioid amount per patient, and the opioid dosage per day around surgery, bone metastasis diagnosis, or death. RESULTS: Overall, 217,722 breast cancer patients were identified. The percentage of patients prescribed opioids and the average amount of opioids per patient were highest in the month of surgery, 78% and 27 morphine milligram equivalents (MMEs), respectively. The average opioid dosage increased with time after surgery from 19 to 28 MMEs. Around bone metastasis, the percentage of patients prescribed opioids and the average opioid amount per patient peaked one month after the diagnosis, 31% and 371 MMEs, respectively. The average opioid dosage gradually increased from 22 to 35 MMEs in succeeding days after a bone metastasis diagnosis. The percentage of patients prescribed opioids and the average opioid amount per patient increased as the month of death approached. CONCLUSION: We investigated opioid prescription trends around clinical events in breast cancer patients on a large scale in Japan. These results may be useful to control cancer pain among breast cancer patients.

Impact of renal and hepatic function on first opioid prescriptions in cancer patients: an acute care hospital database study linked to medical claims data and laboratory data.

BACKGROUND: Cancer patients often have impaired renal and hepatic function. Opioids are essential to relieve painful symptoms in cancer patients. However, it is unknown which opioids are first prescribed for cancer patients with renal and hepatic impairment. The objective is to investigate the association between the type of first prescribed opioids and the renal/hepatic function of cancer patients. METHODS: We used a multicenter database from 2010 to 2019. The number of days from the first opioid prescription to the death was defined as the prognostic period. This period was divided into six categories. The prevalence of opioid prescriptions was calculated for each assessment of renal and hepatic function, divided into prognostic periods. Multinomial logistic regression analysis was used to explore the influence of renal and hepatic function on the first opioid choice. RESULTS: The study included 11 945 patients who died of cancer. In all prognostic period categories, the patients with worse renal function received fewer morphine prescriptions. No trend was observed in hepatic function. The odds ratio of oxycodone to morphine with reference to estimated glomerular filtration rate (eGFR) ≥90 was 1.707 (95% confidence interval: 1.433-2.034) for estimated glomerular filtration rate <30. The odds ratio of fentanyl to morphine with reference to estimated glomerular filtration rate ≥90 was 1.785 (95% confidence interval: 1.492-2.134) for estimated glomerular filtration rate <30. No association was identified between hepatic function and the choice of prescribed opioids. CONCLUSION: Cancer patients with renal impairment tended to avoid morphine prescriptions, and no specific trend was observed in cancer patients with hepatic impairment.