Article
Medicine, General & Internal
Kenneth A. Michelson, Richard G. Bachur, Arianna H. Dart, Pradip P. Chaudhari, Andrea T. Cruz, Joseph A. Grubenhoff, Scott D. Reeves, Michael C. Monuteaux, Jonathan A. Finkelstein
Summary: This study aimed to develop and validate a tool for retrospectively identifying delayed diagnosis of appendicitis using administrative data with high accuracy. The study used a cross-sectional design and included five pediatric emergency departments as the setting. The tool had an AUC of 0.892 in the derivation group and 0.859 in the validation group, with positive predictive values of 84.7% and 94.9% at different thresholds.
Article
Geriatrics & Gerontology
Eric P. F. Chow, Benjumin Hsu, Louise M. Waite, Fiona M. Blyth, David J. Handelsman, David G. Le Couteur, Vasi Naganathan, Fiona F. Stanaway
Summary: This study aimed to compare the accuracy of hospital and death data with clinical diagnosis of dementia in community dwelling older men in Australia. The results showed that administrative hospital and death data have limited accuracy for dementia diagnosis, which may underestimate the prevalence of dementia.
Article
Economics
Onur Altindag, Stephen D. O'Connell, Aytug Sasmaz, Zeynep Balcioglu, Paola Cadoni, Matilda Jerneck, Aimee Kunze Foong
Summary: The study developed an econometric prediction model using administrative data held by international agencies to target over $380 million annually in unconditional cash transfers to Syrian refugees in Lebanon. Results showed that targeting using administrative data is comparable to a Proxy Means Test in terms of accuracy, with small differences attributed to specific data fields.
JOURNAL OF DEVELOPMENT ECONOMICS
(2021)
Article
Critical Care Medicine
Kari R. Gillmeyer, Eduardo R. Nunez, Seppo T. Rinne, Shirley X. Qian, Elizabeth S. Klings, Renda Soylemez Wiener
Summary: This study developed and validated a collection of algorithms to detect PAH in administrative data. The best performing algorithm required ICD diagnosis codes, RHC codes, and PAH-specific therapy, showing high specificity and PPV.
Article
Public, Environmental & Occupational Health
Ashima Singh, Marci K. Sontag, Mei Zhou, Mahua Dasgupta, Tessa Crume, Morgan McLemore, Najibah Galadanci, Eldrida Randall, Nicole Steiner, Amanda M. Brandow, Kathryn Koch, Joshua J. Field, Kathryn Hassell, Angela B. Snyder, Julie Kanter
Summary: Sickle cell disease (SCD) is a genetic condition, but there is currently no universal clinical registry to estimate its prevalence. The Sickle Cell Data Collection (SCDC) program aims to identify individuals with SCD using administrative claims. This study evaluates the ability of the SCDC administrative claims case definition to accurately identify adults with SCD.
JMIR PUBLIC HEALTH AND SURVEILLANCE
(2023)
Article
Hematology
Arafat Ul Alam, Mohammad Karkhaneh, Cynthia Wu, Haowei Linda Sun
Summary: This study validated the accuracy of using a combination of ICD codes and coagulation factor activities to identify hemophilia in administrative data. The algorithm showed high sensitivity and specificity in identifying hemophilia A and B.
THROMBOSIS RESEARCH
(2021)
Article
Gastroenterology & Hepatology
Grace Chen, Trevor Lissoos, Christopher Dieyi, Kyle D. Null
Summary: Validated severity indices for ulcerative colitis (UC) and Crohn's disease (CD) were developed using administrative claims data, with a median IBD severity score of 8 for UC and 13 for CD. These scores were correlated with significantly higher rates of hospitalization and costs, indicating their predictive value for IBD-related outcomes.
INFLAMMATORY BOWEL DISEASES
(2021)
Article
Endocrinology & Metabolism
Karine Suissa, Sebastian Schneeweiss, Kueiyu Joshua Lin, Gregory Brill, Seoyoung C. Kim, Elisabetta Patorno
Summary: Through the use of claims databases in epidemiological studies, it is possible to accurately identify body mass index (BMI), especially with higher sensitivity, specificity, and positive predictive values within specific patient groups.
DIABETES OBESITY & METABOLISM
(2021)
Article
Clinical Neurology
Ruth Ann Marrie, Qier Tan, Okechukwu Ekuma, James J. Marriott
Summary: The study developed an algorithm for predicting disability status in multiple sclerosis patients using administrative data, which may be used as an alternative to clinical data sources. More severe disability was associated with increased health care use.
FRONTIERS IN NEUROLOGY
(2021)
Article
Medicine, General & Internal
Takashi Fujiwara, Takashi Kanemitsu, Kosei Tajima, Akinori Yuri, Masahiro Iwasaku, Yasuyuki Okumura, Hironobu Tokumasu
Summary: Validation studies in oncology are limited in Japan. This study aimed to evaluate the accuracy of diagnosis and adverse event definitions for specific cancers in a Japanese health administrative real-world database. The results showed that the diagnostic accuracy was not high and further investigation is needed.
Article
Oncology
Claire M. B. Holloway, Omid Shabestari, Maria Eberg, Katharina Forster, Paula Murray, Bo Green, Ali Vahit Esensoy, Andrea Eisen, Jonathan Sussman
Summary: By developing an algorithm based on administrative data from Ontario, Canada, it is possible to identify breast cancer recurrence with high sensitivity and specificity, providing valuable information for healthcare system monitoring.
Article
Multidisciplinary Sciences
Satoshi Osaga, Takeshi Kimura, Yasuyuki Okumura, Rina Chin, Makoto Imori, Machiko Minatoya
Summary: The performance of algorithms for identifying cases of severe hypoglycemia in Japanese hospital administrative data was evaluated in this study. By using health insurance claims data and Diagnosis Procedure Combination data, 61 different algorithms were developed to define severe hypoglycemia. The results showed that certain algorithms had moderate performance in identifying severe hypoglycemia cases.
Article
Medicine, General & Internal
Joseph Emmanuel Amuah, Katy Molodianovitsh, Sarah Carbone, Naomi Diestelkamp, Yanling Guo, David B. Hogan, Mingyang Li, Colleen J. Maxwell, John Muscedere, Kenneth Rockwood, Samir Sinha, Olga Theou, Sunita Karmakar-Hore
Summary: To support health system planning for older adults living with frailty in Canada, the study developed and validated the Canadian Institute for Health Information (CIHI) Hospital Frailty Risk Measure (HFRM). The HFRM showed satisfactory predictive validity and can be used as a tool by decision-makers and researchers to support system-level capacity planning for the aging population in Canada.
CANADIAN MEDICAL ASSOCIATION JOURNAL
(2023)
Article
Medicine, General & Internal
Jennifer Elizabeth Jardine, Alissa Fremeaux, Megan Coe, Ipek Gurol Urganci, Dharmintra Pasupathy, Kate Walker
Summary: This study examined the accuracy of ethnicity coding in NHS administrative hospital records. The findings suggest that collapsing ethnicity into groups of white, South Asian, black, mixed, or other can provide a higher level of consistency. Rates of obstetric events and complications were similar across different data sets, with the most differences seen in women coded as mixed ethnicity.
Article
Dermatology
Julie Bulsei, Eric Fontas, Thierry Passeron
Summary: This study assessed the socioeconomic status (SES) of HS patients using the French DEPrivation index (FDep) and found a significant association between HS and low SES in the adult population. In children aged 7-17, low SES was associated with obesity and tobacco consumption, but no association with HS was observed after matching for these confounding factors.
JOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY AND VENEREOLOGY
(2023)
Article
Oncology
Akihisa Mitani, Taisuke Jo, Hideo Yasunaga, Yukiyo Sakamoto, Wakae Hasegawa, Hirokazu Urushiyama, Yasuhiro Yamauchi, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase
Article
Medicine, General & Internal
Chihiro Sato, Kenichi Okuda, Hiroyuki Tamiya, Kota Yamamoto, Katsuyuki Hoshina, Osamu Narumoto, Hirokazu Urushiyama, Satoshi Noguchi, Yosuke Amano, Kosuke Watanabe, Akihisa Mitani, Hidenori Kage, Goh Tanaka, Yasuhiro Yamauchi, Daiya Takai, Takahide Nagase
Article
Allergy
Hideyuki Takeshima, Masafumi Horie, Yu Mikami, Kosuke Makita, Naoya Miyashita, Hirotaka Matsuzaki, Satoshi Noguchi, Hirokazu Urushiyama, Yoshihisa Hiraishi, Akihisa Mitani, Zea Borok, Takahide Nagase, Yasuhiro Yamauchi
ALLERGOLOGY INTERNATIONAL
(2019)
Article
Respiratory System
Yoshihisa Hiraishi, Taisuke Jo, Nobuaki Michihata, Wakae Hasegawa, Yukiyo Sakamoto, Hirokazu Urushiyama, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase, Hideo Yasunaga, Yasuhiro Yamauchi
Article
Respiratory System
Taisuke Jo, Nobuaki Michihata, Hayato Yamana, Yusuke Sasabuchi, Hiroki Matsui, Hirokazu Urushiyama, Akihisa Mitani, Yasuhiro Yamauchi, Kiyohide Fushimi, Takahide Nagase, Hideo Yasunaga
INTERNATIONAL JOURNAL OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE
(2019)
Article
Cell Biology
Hirokazu Urushiyama, Yasuhiro Terasaki, Shinya Nagasaka, Nariaki Kokuho, Youko Endo, Mika Terasaki, Shinobu Kunugi, Kosuke Makita, Hideaki Isago, Keisuke Hosoki, Kunihiko Souma, Takashi Ishii, Hirotaka Matsuzaki, Yoshihisa Hiraishi, Yu Mikami, Satoshi Noguchi, Hiroyuki Tamiya, Akihisa Mitani, Yasuhiro Yamauchi, Akira Shimizu, Takahide Nagase
JOURNAL OF CELLULAR AND MOLECULAR MEDICINE
(2019)
Article
Medicine, Research & Experimental
Nariaki Kokuho, Yasuhiro Terasaki, Shinobu Kunugi, Yoshinobu Saito, Hirokazu Urushiyama, Mika Terasaki, Hiroki Hayashi, Akihiko Gemma, Akira Shimizu
LABORATORY INVESTIGATION
(2019)
Article
Biochemistry & Molecular Biology
Hideaki Isago, Akihisa Mitani, Yu Mikami, Masafumi Horie, Hirokazu Urushiyama, Ryuji Hamamoto, Yasuhiro Terasaki, Takahide Nagase
AMERICAN JOURNAL OF RESPIRATORY CELL AND MOLECULAR BIOLOGY
(2020)
Article
Cell Biology
Yasuhiro Terasaki, Mika Terasaki, Satoshi Kanazawa, Nariaki Kokuho, Hirokazu Urushiyama, Yusuke Kajimoto, Shinobu Kunugi, Motoyo Maruyama, Toshio Akimoto, Yoko Miura, Tsutomu Igarashi, Lkuroh Ohsawa, Akira Shimizu
JOURNAL OF CELLULAR AND MOLECULAR MEDICINE
(2019)
Article
Immunology
Akihiro Takahagi, Masaaki Sato, Toyofumi F. Chen-Yoshikawa, Ei Miyamoto, Masao Saito, Fumiaki Gochi, Masatsugu Hamaji, Akihiko Yoshizawa, Yasuhiro Terasaki, Hirokazu Urushiyama, Akihiro Aoyama, Makoto Sonobe, Hiroshi Date
Letter
Allergy
Kensuke Fukuda, Hirotaka Matsuzaki, Yu Mikami, Kosuke Makita, Kazuko Miyakawa, Naoya Miyashita, Keisuke Hosoki, Takashi Ishii, Satoshi Noguchi, Hirokazu Urushiyama, Masafumi Horie, Akihisa Mitani, Yasuhiro Yamauchi, Eri Shimura, Susumu Nakae, Akira Saito, Takahide Nagase, Yoshihisa Hiraishi
Article
Oncology
Naoya Miyashita, Masafumi Horie, Yu Mikami, Hirokazu Urushiyama, Kensuke Fukuda, Kazuko Miyakawa, Hirotaka Matsuzaki, Kosuke Makita, Yasuyuki Morishita, Hiroaki Harada, Max Backman, Cecilia Lindskog, Hans Brunnstrom, Patrick Micke, Takahide Nagase, Akira Saito
Article
Health Care Sciences & Services
Azusa Aida, Thomas Svensson, Akiko Kishi Svensson, Hirokazu Urushiyama, Kazuya Okushin, Gaku Oguri, Naoto Kubota, Kazuhiko Koike, Masaomi Nangaku, Takashi Kadowaki, Toshimasa Yamauchi, Ung-Il Chung
JMIR MHEALTH AND UHEALTH
(2020)
Article
Respiratory System
Hirokazu Urushiyama, Taisuke Jo, Wakae Hasegawa, Takahiro Ando, Yukiyo Sakamoto, Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase
Summary: Preoperative treatment with pirfenidone was significantly associated with a lower risk of postoperative severe respiratory complications in IPF patients. This treatment may be useful in preventing respiratory complications in IPF patients undergoing surgery with general anaesthesia.
Article
Respiratory System
Panwadee Pluangnooch, Kitipong Soontrapa, Arnon Pudgerd, Somyoth Sridurongrit
Summary: This study demonstrates that TSRICA expression in alveolar macrophages promotes M2 polarization and ameliorates allergic airway inflammation in an ova-induced asthma mouse model.
RESPIRATORY INVESTIGATION
(2024)
Article
Respiratory System
Ryota Otoshi, Hideya Kitamura, Tomohisa Baba, Tatsuya Muraoka, Akimasa Sekine, Tamiko Takemura, Koji Okudela, Tomoe Sawazumi, Takashi Ogura
Summary: This study retrospectively reviewed the efficacy of transbronchial lung cryobiopsy (TBLC) in the diagnosis of idiopathic multicentric Castleman disease (iMCD). The results showed that TBLC was able to evaluate the extent of lung lesions, inflammatory cell infiltration, and the presence of lymphoid follicles in iMCD patients.
RESPIRATORY INVESTIGATION
(2024)
Article
Respiratory System
Toshiyuki Sumi, Yuichi Yamada, Yuta Koshino, Hiroki Watanabe, Daiki Nagayama, Haruhiko Michimata, Keito Suzuki, Takumi Ikeda, Kotomi Terai, Koichi Osuda, Yusuke Tanaka, Hirofumi Chiba
Summary: Combining transbronchial cryobiopsy (TBCB) with forceps biopsy using a 1.1-mm cryoprobe during ultrathin bronchoscopy improves the diagnostic yield for lesions adjacent to the rEBUS probe.
RESPIRATORY INVESTIGATION
(2024)
Article
Respiratory System
Moiz Salahuddin, Shayan Shahid, Umar Tariq, Masooma Aqeel, Ali Usman Arif, Mehwish Aslam, Saadia Sattar
Summary: Pulmonary hypertension is associated with increased mortality, and echocardiographic findings of elevated PASP may be a prognostic factor for 1-year mortality in patients with chronic lung diseases. Patients with elevated PASP, 1-year hospital readmission, and underlying interstitial lung disease or bronchiectasis have increased odds of 1-year mortality.
RESPIRATORY INVESTIGATION
(2024)
Article
Respiratory System
Ryuichiro Takaki, Masaru Ando, Yoshio Satonaga, Michitoshi Yabe, Takamasa Kan, Erika Omote, Shoma Hirota, Sonoe Uchida, Toru Yamasaki, Kosaku Komiya, Kazufumi Hiramatsu
Summary: Bacterial co-infection can worsen the prognosis of patients with viral infections. This study reported two cases of iliopsoas abscess in patients with COVID-19, a comorbidity that has not been previously reported. The comorbidity of iliopsoas abscess may have been underestimated in these cases despite the use of immunosuppressive therapy for COVID-19 pneumonia.
RESPIRATORY INVESTIGATION
(2024)
