Jun Hamano

Dr. Jun Hamano

Faculty of Medicine, University of Tsukuba
orcid

Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 June 2015 in The Oncologist
Verified
Journal Article
Open access
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JHJun Hamano
Jun Hamano
TMTatsuya Morita
Tatsuya Morita
SISatoshi Inoue
Satoshi Inoue
MIMasayuki Ikenaga
Masayuki Ikenaga
YMYoshihisa Matsumoto
Yoshihisa Matsumoto
HKHiroya Kinoshita
Hiroya Kinoshita
Background.: Predicting the short-term survival in cancer patients is an important issue for patients, family, and oncologists. Although the prognostic accuracy of the surprise question has value in 1-year mortality for cancer patients, the prognostic value for short-term survival has not been formally assessed. The primary aim of the present study was to assess the prognostic value of the surprise question for 7-day and 30-day survival in patients with advanced cancer. Patients and Methods.: The present multicenter prospective cohort study was conducted in Japan from September 2012 through April 2014, involving 16 palliative care units, 19 hospital-based palliative care teams, and 23 home-based palliative care services. Results.: We recruited 2,425 patients and included 2,361 for analysis: 912 from hospital-based palliative care teams, 895 from hospital palliative care units, and 554 from home-based palliative care services. The sensitivity, specificity, positive predictive value, and negative predictive value of the 7-day survival surprise question were 84.7% (95% confidence interval [CI], 80.7%–88.0%), 68.0% (95% CI, 67.3%–68.5%), 30.3% (95% CI, 28.9%–31.5%), and 96.4% (95% CI, 95.5%–97.2%), respectively. The sensitivity, specificity, positive predictive value, and negative predictive value for the 30-day surprise question were 95.6% (95% CI, 94.4%–96.6%), 37.0% (95% CI, 35.9%–37.9%), 57.6% (95% CI, 56.8%–58.2%), and 90.4% (95% CI, 87.7%–92.6%), respectively. Conclusion.: Surprise questions are useful for screening patients for short survival. However, the high false-positive rates do not allow clinicians to provide definitive prognosis prediction. Implications for Practice: The findings of this study indicate that clinicians can screen patients for 7- or 30-day survival using surprise questions with 90% or more sensitivity. Clinicians cannot provide accurate prognosis estimation, and all patients will not always die within the defined periods. The screened patients can be regarded as the subjects to be prepared for approaching death, and proactive discussion would be useful for such patients.

1 September 2023 in JCO Global Oncology
Verified
Journal Article
Open access
MMMasanori Mori
Masanori Mori
CLCheng-Pei Lin
Cheng-Pei Lin
Yi-Chen LeeYi-Chen Lee
Yi-Chen Lee
SSSang-Yeon Suh
Sang-Yeon Suh
STSayaka Takenouchi
Sayaka Takenouchi
DMDiah Martina
Diah Martina

23 January 2017 in BMC Palliative Care
Verified
Journal Article
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MMMitsunori Miyashita
Mitsunori Miyashita
MAMaho Aoyama
Maho Aoyama
MNMisato Nakahata
Misato Nakahata
YYYuji Yamada
Yuji Yamada
MAMutsumi Abe
Mutsumi Abe
TMTatsuya Morita
Tatsuya Morita
The Care Evaluation Scale (CES1.0) was designed to allow bereaved family members to evaluate the structure and process of care, but has been associated with a high frequency of misresponses. The objective of this study was to develop a modified version of CES1.0 (CES2.0) that would eliminate misresponses while maintaining good reliability and validity. We conducted a cross-sectional questionnaire survey by mail in October 2013. The participants were bereaved family members of patients who died from cancer in seven institutions in Japan. All family members were asked to complete CES2.0, the short form CES1.0, items on overall care satisfaction, the Family Satisfaction with Advanced Cancer Care (FAMCARE) Scale, the Patient Health Questionnaire-9 (PHQ-9) and the Brief Grief Questionnaire (BGQ). To examine test-retest reliability, all participants were asked to complete a second CES2.0. Of 596 questionnaires sent, 461 (77%) were returned and 393 (66%) were analyzed. In the short form CES1.0, 17.1% of the responses were identified as misresponses. No misresponses were found in CES2.0. We identified 10 CES2.0 subscales similar to those in CES1.0 using exploratory factor analysis. Cronbach’s alpha was 0.96, and the intraclass correlation coefficient was 0.83. Correlations were found between CES2.0 and overall satisfaction (r = 0.83) and FAMCARE (r = 0.58). In addition, total CES2.0 scores were negatively correlated with the PHQ-9 (r = −0.22) and BGQ (r = −0.10). These results suggest that CES2.0 eliminated misresponses associated with CES1.0 while maintaining good reliability and validity and greatly improving test-retest reliability.

19 February 2019 in The Oncologist
Verified
Journal Article
Open access
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MMMasanori Mori
Masanori Mori
MFMaiko Fujimori
Maiko Fujimori
HIHiroto Ishiki
Hiroto Ishiki
TNTomohiro Nishi
Tomohiro Nishi
JHJun Hamano
Jun Hamano
YUYosuke Uchitomi
Yosuke Uchitomi
Introduction: Although various phrases to communicate prognoses based on a certain concept have been proposed, no study has systematically investigated preferences of patients with cancer for actual phrases. We investigated whether phrases with a wider range and additional “hope for the best, and prepare for the worst” (hope/prepare) statement would be more preferable and explored variables associated with patients’ preferences. Materials and Methods: In a cross-sectional survey, 412 outpatients with cancer self-assessed their preferences for 13 phrases conveying prognostic information (e.g., phrases with or without median, typical range, and/or best/worst cases, and those with or without a hope/prepare statement) on a 6-point scale (1 = not at all preferable; 6 = very preferable). We evaluated demographic data and the Coping Inventory for Stressful Situations and conducted multivariate regression analysis. Results: Regarding phrases with various ranges, the one including the median, typical range, and best/worst cases was more preferable (mean ± SD, 3.8 ± 1.3; 95% confidence interval [CI], 3.6–3.9) than the one with the median and typical range (3.4 ± 1.2; 3.3–3.6) or the one with only the median (3.2 ± 1.3; 3.1–3.3). Concerning the hope/prepare statement, the phrase including the median, typical range, uncertainty, and hope/prepare statement was more preferable (3.8 ± 1.4; 3.7–3.9) than the one without the statement (3.5 ± 1.2; 3.4–3.6). In multivariate analyses, task-oriented coping was significantly correlated with preferences for phrases with explicit information. Conclusion: Overall, phrases with a wider range and the hope/prepare statement were preferable to those without them. When patients with cancer ask about prognoses, especially those with task-oriented coping, clinicians may provide explicit information with a wider range and the hope/prepare statement. Implications for Practice: Discussing prognoses with patients with advanced cancer is among the most important conversations for clinicians. In this cross-sectional survey to systematically investigate preferences of 412 patients with cancer for phrases conveying prognostic information, phrases with the median, typical range, and best/worst cases and those with the “hope for the best and prepare for the worst” (hope/prepare) statement were the most preferred. When patients with cancer ask about prognoses, clinicians may provide explicit information with a wider range and include the hope/prepare statement.

7 January 2014 in Journal of Primary Care & Community Health
Verified
Journal Article
Open access
JHJun Hamano
Jun Hamano
YTYasuharu Tokuda
Yasuharu Tokuda
Background: Although several previous studies have examined the prevalence and risk factors associated with inappropriate prescribing (IP) among elderly patients, as identified by the Screening Tool of Older Persons’ potentially inappropriate Prescriptions (STOPP) and Screening Tool to Alert doctors to Right Treatment (START) criteria, no research has been conducted among elderly home care patients. Objective: This study aimed to explore the prevalence of IP and its risk factors as identified by the STOPP/START criteria among elderly home care patients in Japan. Study Design: Cross-sectional study. Setting: Home care settings in Japan. Participants: Eighty-nine patients aged 65 years or older who received regular home visiting services from Yamato Clinic between May 2013 and June 2013. Main Outcome Measure: The prevalence of IP and its risk factors as identified by the STOPP/START criteria. Results: Of the study population, 40.4% had at least one potentially inappropriate medication and 60.7% had at least one incidence of underprescribing. Risk factors for potentially inappropriate medications were hypertension, constipation, and polypharmacy, while those for underprescription were osteoporosis and polypharmacy. Conclusion: The prevalence of IP among elderly home care patients is high, with risk factors that include not only polypharmacy but also several specific underlying medical conditions.

28 March 2016 in Cancer
Verified
Journal Article
Closed access
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JHJun Hamano
Jun Hamano
TYTakashi Yamaguchi
Takashi Yamaguchi
IMIsseki Maeda
Isseki Maeda
ASAkihiko Suga
Akihiko Suga
THTakayuki Hisanaga
Takayuki Hisanaga
TMTatsuya Morita
Tatsuya Morita