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Now showing 1 - 10 of 34
  • Publication
    PS-SiZer map to investigate significant features of body-weight profile changes in HIV infected patients in the IeDEA Collaboration
    (2020-05-01) Jaroslaw Harezlak; Samiha Sarwat; Kara Wools-Kaloustian; Michael Schomaker; Eric Balestre; Matthew Law; Sasisopin Kiertiburanakul; Matthew Fox; Diana Huisin‘t Veld; Beverly Sue Musick; Constantin Theodore Yiannoutsos; University Hospital of Ghent; Kirby Institute; Indiana University-Purdue University Indianapolis; Indiana University School of Medicine; Indiana University Bloomington; School of Public Health; Faculty of Medicine, Ramathibodi Hospital, Mahidol University; Inserm; University of Cape Town; Bayer US LLC
    are credited. Objectives We extend the method of Significant Zero Crossings of Derivatives (SiZer) to address within-subject correlations of repeatedly collected longitudinal biomarker data and the computational aspects of the methodology when analyzing massive... in the presence of therapy. Methods We propose a penalized spline SiZer (PS-SiZer) which can be expressed as a linear mixed model of the longitudinal biomarker process to account for irregularly collected data and within-subject correlations. Through simulations
  • Publication
    Longitudinal Screening for Diabetic Retinopathy in a Nationwide Screening Program: Comparing Deep Learning and Human Graders
    (2020-01-01) Jirawut Limwattanayingyong; Variya Nganthavee; Kasem Seresirikachorn; Tassapol Singalavanija; Ngamphol Soonthornworasiri; Varis Ruamviboonsuk; Chetan Rao; Rajiv Raman; Andrzej Grzybowski; Mike Schaekermann; Lily H. Peng; Dale R. Webster; Christopher Semturs; Jonathan Krause; Rory Sayres; Fred Hersch; Richa Tiwari; Yun Liu; Paisan Ruamviboonsuk; Google LLC, Asia Pacific; Chulalongkorn University; Sankara Nethralaya; Uniwersytet Warminsko-Mazurski w Olsztynie; Rangsit University; Mahidol University; Google LLC; Foundation for Ophthalmology Development; Chulabhorn Hospital
    © 2020 Jirawut Limwattanayingyong et al. Objective. To evaluate diabetic retinopathy (DR) screening via deep learning (DL) and trained human graders (HG) in a longitudinal cohort, as case spectrum shifts based on treatment referral and new-onset DR.... Methods. We randomly selected patients with diabetes screened twice, two years apart within a nationwide screening program. The reference standard was established via adjudication by retina specialists. Each patient's color fundus photographs were graded
  • Publication
    Effects of gender affirming hormone therapy on body mass index in transgender individuals: A longitudinal cohort study
    (2020-09-01) Pichatorn Suppakitjanusant; Yuhan Ji; Mary O. Stevenson; Panicha Chantrapanichkul; R. Craig Sineath; Michael Goodman; Jessica A. Alvarez; Vin Tangpricha; Atlanta VA Medical Center; Rollins School of Public Health; Oregon Health & Science University; Faculty of Medicine, Ramathibodi Hospital, Mahidol University; Faculty of Medicine, Siriraj Hospital, Mahidol University; Emory University School of Medicine
    syndrome, cardiovascular disease and higher mortality. Only a few published studies explored changes in BMI in transgender people taking gender affirming hormone therapy (GAHT). Objective: To examine the changes in BMI longitudinally in response to GAHT... in transgender women and men. Methods: We conducted a retrospective cohort study of transgender individuals who received GAHT from the endocrinology clinic between January 1, 2000 and September 6, 2018. Subjects who sought GAHT were included if they had two
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    Determinants of loneliness among older adults: A systematic review based on recent longitudinal studies
    (2025-11-01) Hajek A.; Zwar L.; Gyasi R.M.; Yon D.K.; Pengpid S.; Peltzer K.; König H.H.; Hajek A.; Mahidol University
    Aims: To synthesize studies examining the determinants of loneliness among older adults based on recent longitudinal observational studies. Methods: PRISMA guidelines were followed (PROSPERO ID CRD420251006752). In mid-March 2025, four established... databases were searched and an additional hand search was performed. Observational longitudinal studies investigating the determinants of loneliness amongst older adults were included published from June 2018 ongoing. We extracted main characteristics
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    Association of loneliness and perceived social exclusion with donation behavior among community-dwelling individuals aged 40 and over: longitudinal evidence from the nationally representative German Ageing Survey
    (2026-12-01) Hajek A.; Yon D.K.; Soysal P.; Peltzer K.; Pengpid S.; König H.H.; Hajek A.; Mahidol University
    on a longitudinal approach. Methods: Longitudinal data were taken from wave 5 (year 2014) to wave 8 (year 2023) of the German Ageing Survey encompassing community-dwelling individuals aged 40 years and over. Established tools were used to quantify.... Sociodemographic factors (i.e., age, sex, and education) did not moderate the identified associations. Discussion: Even after adjusting for a wide array of covariates, our longitudinal study showed a significant and robust association between increases in social
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    Behind closed doors: Homeboundness and psychosocial outcomes. Evidence from a longitudinal study of middle-aged and older adults
    (2025-04-01) Hajek A.; Soysal P.; Gyasi R.M.; Kostev K.; Pengpid S.; Peltzer K.; König H.H.; Hajek A.; Mahidol University
    Objectives: To examine how homeboundness is associated with psychosocial outcomes in terms of life satisfaction, positive affect, negative affect and loneliness among middle-aged and older adults. Methods: Longitudinal data were taken from
  • Publication
    Serum Hormone Concentrations in Transgender Individuals Receiving Gender-Affirming Hormone Therapy: A Longitudinal Retrospective Cohort Study
    (2021-01-01) Panicha Chantrapanichkul; Mary O. Stevenson; Pichatorn Suppakitjanusant; Michael Goodman; Vin Tangpricha; Siriraj Hospital; Atlanta VA Medical Center; Rollins School of Public Health; Faculty of Medicine Ramathibodi Hospital, Mahidol University; Emory University School of Medicine
    Objective: To examine the association of various gender-affirming hormone therapy regimens with blood sex hormone concentrations in transgender individuals. Methods: This retrospective study included transgender people receiving gender-affirming
  • Publication
    Long-term air pollution exposure and self-reported morbidity: A longitudinal analysis from the Thai cohort study (TCS)
    (2020-01-01) Kanawat Paoin; Kayo Ueda; Thammasin Ingviya; Suhaimee Buya; Arthit Phosri; Xerxes Tesoro Seposo; Sam ang Seubsman; Matthew Kelly; Adrian Sleigh; Akiko Honda; Hirohisa Takano; Jaruwan Chokhanapitak; Chaiyun Churewong; Suttanit Hounthasarn; Suwanee Khamman; Daoruang Pandee; Suttinan Pangsap; Tippawan Prapamontol; Janya Puengson; Wimalin Rimpeekool; Yodyiam Sangrattanakul; Boonchai Somboonsook; Nintita Sripaiboonkij; Pathumvadee Somsamai; Benjawan Tawatsupa; Arunrat Tangmunkongvorakul; Duangkae Vilainerun; Wanee Wimonwattanaphan; Chris Bain; Emily Banks; Cathy Banwell; Janneke Berecki-Gisolf; Bruce Caldwell; Gordon Carmichael; Tarie Dellora; Jane Dixon; Sharon Friel; David Harley; Susan Jordan; Tord Kjellstrom; Lynette Lim; Roderick McClure; Anthony McMichael; Tanya Mark; Lyndall Strazdins; Tam Tran; Vasoontara Yiengprugsawan; Jiaying Zhao; Mahidol University; Nagasaki University; Kyoto University; The Australian National University; Prince of Songkla University; Sukhothai Thammathirat Open University
    -reported morbidities in participants of the Thai cohort study (TCS) in Bangkok metropolitan region (BMR), Thailand. Methods: This longitudinal cohort study was conducted for 9 years from 2005 to 2013. Self-reported morbidities in this study included high...© 2020 The Authors Background: Several studies have shown the health effects of air pollutants, especially in China, North American and Western European countries. But longitudinal cohort studies focused on health effects of long-term air pollution
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    The 40-min HIIT acutely induced bone formation which was likely through the increases in muscle derived interleukin 6 and adiponectin activation: The 16 weeks of HIIT intervention, longitudinal randomized controlled trial
    (2024-07-01) Sasimontonkul S.; Sirivarasai J.; Sasimontonkul S.; Mahidol University
    women. Methods: In total, 22 overweight, premenopausal women were randomly assigned to either the exercise or the control group. The exercise participants engaged in the 40-min HIIT session at 80–90 % of their heart rate reserve (HRR) three times weekly
  • Publication
    Entomological determinants of malaria transmission in kayin state, eastern myanmar: A 24-month longitudinal study in four villages [version 3; peer review: 2 approved]
    (2019-01-01) Victor Chaumeau; Bénédicte Fustec; Saw Nay Hsel; Céline Montazeau; Saw Naw Nyo; Selma Metaane; Sunisa Sawasdichai; Prapan Kittiphanakun; Phabele Phatharakokordbun; Nittipha Kwansomboon; Chiara Andolina; Dominique Cerqueira; Theeraphap Chareonviriyaphap; François H. Nosten; Vincent Corbel; CHU Montpellier; IRD Centre de Montpellier; Kasetsart University; Mahidol University; Nuffield Department of Clinical Medicine
    determinants of malaria transmission. Methods: Entomological investigations were conducted during 24 months in four villages located in Kayin state, on the Myanmar side of the Thailand-Myanmar border. Anopheles mosquitoes were identified by morphology