Hirohisa Imai
University of Tokyo
EpidemiologyCancerInternal medicineEndocrinologyGenotypePublic healthSurgeryOncologyCase-control studyDemographyOdds ratioNursingAlleleCohort studyHair lossChemotherapyPopulationGynecologyRisk factorFamily medicineBreast cancerMedicineGerontologyBiologyGastroenterology
63Publications
20H-index
976Citations
Publications 63
Newest
#1Yoshiharu FukudaH-Index: 21
#2Hiroyuki NakaoH-Index: 26
Last. Hirohisa ImaiH-Index: 20
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This study aimed to elucidate trends in socioeconomic inequalities in health during the past half century in Japan. Association of life expectancy and age-adjusted mortality with per capita income was examined using data on prefectures and municipalities in Japan of 1955 to 2000 via the slope index of inequality (SII) and Poisson regression. Although there were a few differences among health indicators and sex, health inequalities by prefecture, measured by the SII, decreased from 1955 to 1995. ...
#1Ryoichi Hamasuna (University of Miyazaki)H-Index: 13
#2Shinji HoshinaH-Index: 1
Last. Yukio Osada (University of Miyazaki)H-Index: 24
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Abstract: Orogenital sex is recognized as a route for the transmission of Chlamydia trachomatis (CT) which thus causes male chlamydial urethritis. Patients with a pharyngeal CT infection have no gross lesions, but CT was tested by pharyngeal swabs. In this study, the usefulness of oral wash specimens for detecting CT was compared to that of swab specimens. In addition, oral wash specimens were also used to screen for CT pharyngeal infection. Eighteen female commercial sex workers in whom CT was ...
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#1Yoshiharu FukudaH-Index: 21
#2Hiroyuki NakaoH-Index: 26
Last. Hirohisa ImaiH-Index: 20
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BACKGROUND: There are several alternative indicators of income information, which is a fundamental measure of individual socioeconomic position. In this study, we compared the degrees of associations of four types of income information with health variables among Japanese adults.METHODS: Using a nationally representative sample of 29,446 men and 32,917 women aged 20 years and over, the associations between four income indicators and health variables were examined using the odds ratio in logistic...
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#1Yoshiharu Fukuda (Tokyo Medical and Dental University)H-Index: 21
#2Keiko Nakamura (Tokyo Medical and Dental University)H-Index: 25
Last. Hirohisa ImaiH-Index: 20
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Objectives Cancer screening has become common in Japan. However, little is known about the socioeconomic factors affecting cancer screening participation. This study was performed to examine the association between socioeconomic status and cancer screening participation in Japanese males.
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#1Shozo OhsumiH-Index: 27
#2Kojiro Shimozuma (University of Marketing and Distribution Sciences)H-Index: 25
Last. Hirohisa ImaiH-Index: 20
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Since standard radical mastectomy was established by Halsted for breast cancer, surgical procedures for breast cancer have been changed according to the results of randomized controlled trials. Breast-conserving treatment is now regarded as a standard local treatment for early breast cancer. More recently, sentinel node biopsy is becoming popular as an alternative procedure to axillary node dissection for nodal staging. These new procedures have been believed to be better in terms of patients’ q...
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#1Kojiro Shimozuma (University of Marketing and Distribution Sciences)H-Index: 25
#2Hirohisa ImaiH-Index: 20
Last. Michikazu Ono (Waseda University)H-Index: 4
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This article reviews recent topics in health outcomes research. First, we discuss the concept and importance of ‘subjective’ assessment of quality of life (QOL), and introduce new guidance, by the respective medical product regulatory authorities in Europe and the United States, for labeling claims of medical products that are assessed for outcomes related to QOL. Second, we address the application of item response theory (IRT) in developing and assessing QOL measures to compensate for several d...
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#1Katsumasa KuroiH-Index: 33
#2Kojiro Shimozuma (University of Marketing and Distribution Sciences)H-Index: 25
Last. Michikazu Ono (Waseda University)H-Index: 4
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Recent research has shown the importance of the patient’s point of view on the goals of medical care, and now health-related quality of life (HR-QOL) has become an important endpoint of clinical studies. However, as HR-QOL is essentially a subjective, personal concept determined from the viewpoint of the patient, it is fundamentally important to understand the concept and use the HR-QOL assessment, to express both the subjective and qualitative concept of HR-QOL in an objective and quantitative ...
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#1Michikazu Ono (Waseda University)H-Index: 4
#2Hirohisa ImaiH-Index: 20
Last. Kojiro Shimozuma (University of Marketing and Distribution Sciences)H-Index: 25
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The next step for breast cancer specialists, who have created and published the Breast Cancer Treatment Guidelines to evaluate of health care quality and who are ahead of many other clinicians in this respect, is to articulate the ideal form of evaluation that adequately combines evaluations from various perspectives.
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#1Hirohisa ImaiH-Index: 20
#2Katsumasa KuroiH-Index: 33
Last. Kojiro Shimozuma (University of Marketing and Distribution Sciences)H-Index: 25
view all 5 authors...
Background More effective methods of preventing and treating breast cancer are being sought by clinicians every day, and new drugs and interventions for overcoming this cancer are being energetically evaluated. At present, there are wide treatment options and many different objectives for breast cancer. These circumstances led us to seek information about the relative costs of the different medical options for the prevention and treatment of breast cancer and to try to ascertain whether one cour...
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#1Hirohisa ImaiH-Index: 20
#2Hiroyuki Nakao (University of Miyazaki)H-Index: 26
Last. Takahiko Yoshida (Asahikawa Medical College)H-Index: 11
view all 7 authors...
Objectives The Community Health Act came into effect in 1997 in Japan. This act altered the work system for public health nurses (PHNs) in public health centers (PHCs) nationwide from region-specific to service-specific work. Such major changes to working environment in the new system seem to be exposing PHNs to various types of stress. The present study examined whether prevalence of burnout is higher among PHNs in charge of mental health services (psychiatric PHNs) than among PHNs in charge of...
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