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Ji Hae Hwang,1,2,&ast; Kyeongmin Lee,1,&ast; Eunji Choi,1,3 Ha Na Cho,1 Boyoung Park,4 Yumie Rhee,5 Kui Son Choi1 1Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Republic of Korea; 2Center for Emergency Operations, Korea Centers for Disease Control and Prevention, Cheongju, Republic of Korea; 3Quantitative Sciences Unit, Stanford University School of Medicine, Stanford, CA, USA; 4Department of Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea; 5Department of Internal Medicine, Endocrine Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea&ast;These authors contributed equally to this workCorrespondence: Kui Son ChoiGraduate School of Cancer Science and Policy, National Cancer Center, 323, Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10408, Republic of KoreaTel +82-31-920-2912Fax +82-31-920-2189Email kschoi@ncc.re.krPurpose: Poor sleep quality is a common problem among middle-aged women. Few studies, however, have assessed differences in sleep quality among premenopausal, perimenopausal, and postmenopausal women and related risk factors in Korea women. The aim of this study was to assess sleep quality and factors associated therewith according to menopausal status in Korean women.Patients and Methods: This study was based on the 2016 Korean Study of Women’s Health Related Issues (K-Stori), a cross-sectional survey employing nationally representative random sampling. In total, 3000 Korean women aged 45 to 64 years completed the Pittsburgh Sleep Quality Index (PSQI). Comparison of demographic characteristics and sleep quality among pre-, peri-, and postmenopausal women was conducted.Results: Among the participants, 26% suffered from poor sleep quality based on the PSQI. The prevalence of poor sleep quality increased with later menopausal stage (from 18.8% in the premenopausal stage to 29.5% in the postmenopausal stage P < 0.001). Multivariate logistic regression analysis showed that peri- and postmenopausal women were 1.50 and 1.73 times more likely to have poor sleep quality in comparison to premenopausal women, respectively. Chronic disease, depression, at-risk drinking, taking dietary supplements, and single women were associated with a higher likelihood of having poor sleep quality. Health status, at-risk drinking, chronic illness, dietary supplementation, and depression were significantly associated with poor sleep quality.Conclusion: Poor sleep quality appears to be prevalent in peri- and postmenopausal women in Korea. The management of sleep quality during menopause transition is important, and further research on how sleep disturbances influence the health status of women in menopausal transition is required.Keywords: menopause, sleep quality, Pittsburgh sleep quality index

Binh Thang Tran,1,2 Nhu Hiep Pham,3 Thanh Xuan Nguyen,3 Kui Son Choi,1,4 Dae Kyung Sohn,1,5 Sun-Young Kim,1 Jae Kyung Suh,6 Thuy Duyen Nguyen,1,7 Van Sang Phan,2 Dinh Trung Tran,8 The Thanh Nguyen,9 Thi Thanh Binh Nguyen,10 Minh Tu Nguyen,11 Jin-Kyoung Oh1,12 1Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Republic of Korea; 2Faculty of Public Health, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam; 3Department of Abdominal Emergency and Pediatric Surgery, Hue Central Hospital, Hue City, Vietnam; 4National Cancer Control Institute; National Cancer Center, Goyang, Republic of Korea; 5Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, South Korea; 6Division of Healthcare Technology Assessment Research, National Evidence-Based Healthcare Collaborating Agency, Seoul, Korea; 7Center for Population Health Sciences, Hanoi University of Public Health, Hanoi, Vietnam; 8Faculty of Public Health, Da Nang University of Medical Technology and Pharmacy, Da Nang City, Vietnam; 9Department of Endoscopy and Functional Exploration, Da Nang Oncology Hospital, Da Nang City, Vietnam; 10Department of Pediatrics, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam; 11Undergraduate Training Office, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam; 12Division of Cancer Prevention & Early Detection, National Cancer Center, Goyang, Republic of KoreaCorrespondence: Jin-Kyoung OhDepartment of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, 323 Ilsan-Ro, Ilsandong-Gu, Goyang-si, Gyeonggi-do 410-769, Republic of KoreaTel +82-31-920-2921Fax +82-31-920-2929Email jkoh@ncc.re.krPurpose: Health-related quality of life (HRQoL) is an important construct in clinical settings, and it is crucial that it should be properly measured. As the EuroQol-5-dimensions-5 levels (EQ-5D-5L) is more effective for such measurement than the 3-level model, data on economic models, clinical studies, and public health evaluations previously collected through the EQ-5D-3L need to be revaluated using the EQ-5D-5L. This study evaluated colorectal cancer (CRC) patients’ HRQoL scores using the Vietnamese EQ-5D-5L value set.Patients and Methods: The cross-sectional study included CRC patients treated at a tertiary public hospital. HRQoL was assessed using the EQ-5D-5L, and HRQoL utility scores were calculated using the Vietnamese value set. Tobit regression examined factors associated with HRQoL.Results: The analysis included 197 CRC patients. Ages ranged from 20 to 87 years (M = 57.64, SD = 13.5); 42.2% and 57.8% were diagnosed with cancer of the colon or rectum/anus, respectively. Mean EQ-5D-5L was 0.561 (range, − 0.5115 to 1). Most participants experienced anxiety/depression (88%), followed by pain/discomfort (87%), mobility (71%), usual activity (69%), and self-care (67%). Advanced CRC stage (stage II: β − 0.303, se 0.08; stage III: β − 0.305, se 0.07; stage IV: β − 0.456, se 0.07) and surgery (β − 0.113, se 0.05) were negatively associated with EQ-5D-5L scores. Advanced education (high school: β 0.273, se 0.07); college/vocational: β 0.134se 0.05; university/higher: Coef 0.213, se 0.08;) and older age (age group 35− 44: β 0.253, se 0.10; 45− 54: β 0.327, se 0.09; 55− 64: β 0.355 se 0.09; 65+ β 0.204, se 0.09) were positively associated with EQ-5D-5L scores.Conclusion: Patients in advanced CRC stages or undergoing surgery experienced lower HRQoL and higher prevalence of anxiety/depression and pain/discomfort. Older age and high educational attainment predicted high HRQoL. This study provides information on CRC patients’ health utility based on various patient characteristics, which can be used in future economic evaluations.Keywords: HRQoL, EQ-5D-5L, utility, colorectal cancer, Vietnam

Boyoung Park,1,2 Hye Mi Cho,2 Eun Hye Lee,3 Seunghoon Song,2 Mina Suh,2 Kui Son Choi,1,2 Bong Joo Kang,4 Kyungran Ko,5 Ann Yi,6 Hae Kyoung Jung,7 Joo Hee Cha,8 Jae Kwan Jun,1,2 1National Cancer Center Graduate School of Cancer Science and Policy, Goyang, Republic of Korea; 2National Cancer Control Institute, National Cancer Center, Goyang, Republic of Korea; 3Department of Radiology, Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea; 4Department of Radiology, Seoul St Mary’s Hospital, Catholic University of Korea College of Medicine, Seoul, Republic of Korea; 5Center for Breast Cancer, National Cancer Center Hospital, National Cancer Center, Goyang, Republic of Korea; 6Department of Radiology, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea; 7Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea; 8Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea Purpose: The purpose of this study was to investigate the effects of breast density on breast cancer risk among women screened via a nationwide mammographic screening program. Patients and methods: We conducted a nested case–control study for a randomly selected population of 1,561 breast cancer patients and 6,002 matched controls from the National Cancer Screening Program. Breast density was measured and recorded by two independent radiologists using the Breast Imaging Reporting and Data System (BI-RADS). Associations between BI-RADS density and breast cancer risk were evaluated according to screening results, time elapsed since receiving non-recall results, age, and menopausal status after adjusting for possible covariates. Results: Breast cancer risk for women with extremely dense breasts was five times higher (adjusted odds ratio [aOR] =5.0; 95% confidence interval [CI]) =3.7–6.7) than that for women with an almost entirely fatty breast, although the risk differed between recalled women (aOR =3.3, 95% CI =2.3–3.6) and women with non-recalled results (aOR =12.1, 95% CI =6.3–23.3, P-heterogeneity =0.001). aORs for BI-RADS categories of breast density were similar when subjects who developed cancer after showing non-recall findings during initial screening were grouped according to time until cancer diagnosis thereafter (

Chi-Fuk So,1 Kup-Sze Choi,1 Thomas KS Wong,2 Joanne WY Chung2,31Centre for Integrative Digital Health, School of Nursing, The Hong Kong Polytechnic University, Hong Kong, 2Department of Nursing and Health Sciences, Tung Wah College, Hong Kong, 3Department of Health and Physical Education, The Hong Kong Institute of Education, Hong KongAbstract: The race for the next generation of painless and reliable glucose monitoring for diabetes mellitus is on. As technology advances, both diagnostic techniques and equipment improve. This review describes the main technologies currently being explored for noninvasive glucose monitoring. The principle of each technology is mentioned; its advantages and limitations are then discussed. The general description and the corresponding results for each device are illustrated, as well as the current status of the device and the manufacturer; internet references for the devices are listed where appropriate. Ten technologies and eleven potential devices are included in this review. Near infrared spectroscopy has become a promising technology, among others, for blood glucose monitoring. Although some reviews have been published already, the rapid development of technologies and information makes constant updating mandatory. While advances have been made, the reliability and the calibration of noninvasive instruments could still be improved, and more studies carried out under different physiological conditions of metabolism, bodily fluid circulation, and blood components are needed.Keywords: noninvasive, glucose monitoring, diabetes mellitus, blood glucose measurement