National Adult Cardiac Surgery Audit (NACSA) (United Kingdom) **

Database Contact Data

National Institute for Cardiovascular Outcomes Research (NICOR),
St John’s House, 30 East Street,
Leicester, LE1 6NB
ENGLAND
Email 1: nicor.auditenquiries@nhs.net
Email 2: nicor.datarequests@nhs.net

Alternate Contact

N/A

References of Studies Using/Describing Database

1. Narayan P, Dong T, Chan J, Tan C, Aydin T, Sinha S, Fudulu DP, Angelini GD. Reoperative surgery for early and late-onset prosthetic valve endocarditis: temporal trends and outcomes. Interdisciplinary CardioVascular and Thoracic Surgery. 2025 Apr 11:ivaf096.

2. Sewart E, Isted A, Wong KHF, Kunst G, Mouton R. Prevalence of smoking and postoperative outcomes in people undergoing coronary artery bypass grafting: a UK registry analysis. Anaesthesia. 2025 Mar;80(3):330-332.

3. Sewart E, Isted A, Wong K, Whitaker D, Hinchliffe R, Kunst G, Mouton R. The Impact Of Smoking On Outcomes After Cardiac Surgery. Journal of Cardiothoracic and Vascular Anesthesia. 2024 Dec 1;38(12):76.

4. Gibbison B, Murphy G, O'Brien B, Pufulete M. An Update on Guidelines to Prevent and Manage Atrial Fibrillation After Cardiac Surgery and a Survey of Practice in the UK. J Cardiothorac Vasc Anesth. 2024 Oct;38(10):2307-2313.

5. Sinha S, Dong T, Dimagli A, Judge A, Angelini GD. A machine learning algorithm-based risk prediction score for in-hospital/30-day mortality after adult cardiac surgery. European Journal of Cardio-Thoracic Surgery. 2024 Oct;66(4):ezae368.

6. Aktaa S, Ali N, Ludman PF, Curzen N, Goodwin AT, Hildick-Smith D, Kharbanda RK, Jones PD, Manuel S, Phanthala S, Blackman DJ. Geographical Inequality in Access to Aortic Valve Intervention in England: A Report from the UK Transcatheter Aortic Valve Implantation Registry and National Adult Cardiac Surgery Audit. Interv Cardiol. 2024 Aug 28;19:e15.

7. Dimagli A, Gaudino M, Harik L, Sinha S, Fudulu D, Chan J, Olaria RP, Soletti Jr G, Alzghari T, Cancelli G, An KR. Comparative analysis of coronary artery bypass grafting outcomes in women using different conduits in the national UK data set. The Annals of Thoracic Surgery. 2024 Mar 1;117(3):510-6.

8. Chan J, Narayan P, Fudulu DP, Dong T, Angelini GD. Trend in mitral valve prostheses of choice and early outcomes in the United Kingdom. International Journal of Cardiology. 2024 Feb 15;397:131607.

9. Jenkins DA, Martin GP, Sperrin M, Brown B, Kimani L, Grant S, Peek N. Comparing Predictive Performance of Time Invariant and Time Variant Clinical Prediction Models in Cardiac Surgery. Stud Health Technol Inform. 2024 Jan 25;310:1026-1030.

10. Chan J, Sinha S, Fudulu DP, Dong T, Narayan P, Angelini GD. Training in Advanced Coronary Artery Bypass Surgery in the United Kingdom. Journal of Cardiac Surgery. 2024;2024(1):2140060.

Japan Medical Data Center® (JMDC): Hospital Database (Japan)

Database Contact Data

JMDC Inc.
Sumitomo Shibadaimon Bldg 12F 
2-5-5, Shibadaimon
Minato-ku
Tokyo 105-0012
JAPAN
Phone: +81-03-5733-5010 
Email: info@jmdc.co.jp

Alternate Contact

You may also contact the company by completing the contact form at: https://www.jmdc.co.jp/en/inquiry/

References of Studies Using/Describing Database

1. Miyairi I, Miyazawa S, Takahashi Y, Kojima S, Kitanishi Y, Ogura E. Incidence of severe illness in pediatric influenza outpatients treated with baloxavir or neuraminidase inhibitors. J Infect Chemother. 2025 Mar;31(3):102606.

2. Miyazato K, Ohtsu H, Shimomura A, Yonemoto N, Shimizu C, Sase K, Ueda S. Impact of adjuvant trastuzumab therapy and its discontinuation on cardiac function and mortality in patients with early-stage breast cancer: An analysis based on the Japanese Receipt Claim Database. Breast. 2025 Feb;79:103871.

3. Nagashima R, Kato H, Matsuzaki T, Nagahama T, Goto R. Utilisation of outpatient care immediately before emergency admission for ambulatory care-sensitive conditions in Japan: a retrospective observational study. BMJ Open. 2025 Jan 8;15(1):e086714.

4. Kusama T, Tamada Y, Osaka K, Takeuch K. Periodontal Care Is Associated With a Lower Risk of Dialysis Initiation in Middle-Aged Patients With Type 2 Diabetes Mellitus: A 6-Year Follow-Up Cohort Study Based on a Nationwide Healthcare Database. J Clin Periodontol. 2025 Jan 5. doi: 10.1111/jcpe.14105. Epub ahead of print.

5. Matsuoka K, Nakajo K, Kawamura S, Zhang Y, Chung H, Wahking B, Tan JY, Qiu H. Persistence of advanced therapies in patients with inflammatory bowel disease: retrospective cohort study using a large healthcare claims database in Japan. Intest Res. 2025 Jan 2. doi: 10.5217/ir.2024.00118. Epub ahead of print.

6. Makiuchi T, Zha L, Kitamura T, Sobue T, Ogawa T. Impact of colorectal cancer screening by primary tumor location in a real-world setting in Japan. Eur J Cancer Prev. 2024 Nov 27. doi: 10.1097/CEJ.0000000000000940. Epub ahead of print.

7. Suzuki Y, Iwagami M, Shimizu S, Goto A. Effects of incentivising dialysis facilities on peripheral arterial disease care in patients undergoing haemodialysis: a claims-based cohort study. Clin Kidney J. 2024 Nov 18;17(12):sfae342.

8. Okada K, Nakayama Y, Xu J, Cheng Y, Tanaka J. A nation-wide medical record database study: Value of hepatitis B surface antigen loss in chronic hepatitis B patients in Japan. Hepatol Res. 2024 Nov;54(11):1004-1015.

9. Sato A, Rodriguez-Molina D, Yoshikawa-Ryan K, Yamashita S, Okami S, Liu F, Farjat A, Oberprieler NG, Kovesdy CP, Kanasaki K, Vizcaya D. Early Clinical Experience of Finerenone in People with Chronic Kidney Disease and Type 2 Diabetes in Japan-A Multi-Cohort Study from the FOUNTAIN (FinerenOne mUltidatabase NeTwork for Evidence generAtIoN) Platform. J Clin Med. 2024 Aug 28;13(17):5107.

10. Kawai K, Ishii M, Kokado Y, Horikawa T, Hoshino J. Outcomes of Early Versus Delayed Anemia Treatment in Nondialysis-Dependent CKD. Kidney Int Rep. 2024 Apr 15;9(7):2056-2066.

Japan Medical Data Center® (JMDC): Local Government Database (Japan)

Database Contact Data

JMDC Inc.
Sumitomo Shibadaimon Bldg 12F 
2-5-5, Shibadaimon
Minato-ku
Tokyo 105-0012
JAPAN
Phone: +81-03-5733-5010 
Email: info@jmdc.co.jp

Alternate Contact

You may also contact the company by completing the contact form at: https://www.jmdc.co.jp/en/inquiry/

References of Studies Using/Describing Database

1. Okubo Y, Ishitsuka K, Goto A. Impact of COVID-19 pandemic on physical health amongst children: Difference-in-differences analyses of nationwide school health checkup database. Pediatr Obes. 2024 Jul;19(7):e13126.

2. Okumura Y, Fujiwara T, Tokumasu H, Kimura T, Hinotsu S. A new electronic medical record database linked to claims data and discharge abstract data (the RWD database) in Japan: Study design and profile. Annals of Clinical Epidemiology. 2024;6(3):58-64.

3. Kanda E, Suzuki A, Makino M, Tsubota H, Kanemata S, Shirakawa K, Yajima T. Machine learning models for prediction of HF and CKD development in early-stage type 2 diabetes patients. Sci Rep. 2022 Nov 21;12(1):20012.

4. Masubuchi R, Noda M, Yoshida S, Kawakami K. Longitudinal study of body mass index and percentage of overweight in Japanese children grouped by maturity. Endocrine Journal. 2022;69(4):451-61.

5. Yoshida S, Kimura T, Noda M, Takeuchi M, Kawakami K. Association of maternal prepregnancy weight and early childhood weight with obesity in adolescence: A population-based longitudinal cohort study in Japan. Pediatr Obes. 2020 Apr;15(4):e12597.

6. Ide K, Yoshida S, Kimura T, Oita Y, Kawakami K. The General Understanding and Perceptions of the Practical Use of School Health Records: A Questionnaire Survey of Parents from Seven Local Municipalities in Japan. School Health. 2020;16:33-42.

Japan Medical Data Center® (JMDC): Electronic Medical Record Database (Japan)

Database Contact Data

JMDC Inc.
Sumitomo Shibadaimon Bldg 12F 
2-5-5, Shibadaimon
Minato-ku
Tokyo 105-0012
JAPAN
Phone: +81-03-5733-5010 
Email: info@jmdc.co.jp

Alternate Contact

You may also contact the company by completing the contact form at: https://www.jmdc.co.jp/en/inquiry/

References of Studies Using/Describing Database

1. Yabuuchi M, Yokoyama K. Safety risks of interstitial lung disease upon real-world usage of Janus kinase inhibitors and biologics for patients with autoimmune diseases: epidemiological study using nationwide electronic medical record database in Japan. Immunol Med. 2024 Sep;47(3):130-141.

2. Hiraga K, Takeuchi M, Kimura T, Yoshida S, Kawakami K. Prediction models for in-hospital deaths of patients with COVID-19 using electronic healthcare data. Curr Med Res Opin. 2023 Nov;39(11):1463-1471. doi: 10.1080/03007995.2023.2270420. Epub 2023 Oct 28. Erratum in: Curr Med Res Opin. 2024 Aug;40(8):1453.

3. Iijima H, Gouda M, Hida H, Mori-Anai K, Takahashi A, Minai R, Ninomiya H, Saito Y, Miyawaki A, Wada J. Renal outcomes with sodium-glucose cotransporter 2 inhibitors in Japanese people with grade 3 chronic kidney disease and type 2 diabetes: Analysis of medical administrative databases. Diabetes Obes Metab. 2024 May;26(5):1615-1623.

4. Kawai K, Ishii M, Kokado Y, Horikawa T, Hoshino J. Outcomes of Early Versus Delayed Anemia Treatment in Nondialysis-Dependent CKD. Kidney Int Rep. 2024 Apr 15;9(7):2056-2066.

5. Hayashi A, Mizuno K, Shinkawa K, Sakoda K, Yoshida S, Takeuchi M, Yanagita M, Kawakami K. Effect of multidisciplinary care on diabetic kidney disease: a retrospective cohort study. BMC nephrology. 2024 Mar 25;25(1):114.

6. Tanaka T, Maruyama S, Chishima N, Akiyama H, Shimamoto K, Inokuchi S, Yokota K, Ozaki A. Population characteristics and diagnosis rate of chronic kidney disease by eGFR and proteinuria in Japanese clinical practice: an observational database study. Sci Rep. 2024 Mar 2;14(1):5172.

7. Inokuchi S, Shimamoto K. Persistent Risk of Developing Autoimmune Diseases Associated With COVID-19: An Observational Study Using an Electronic Medical Record Database in Japan. J Clin Rheumatol. 2024 Mar 1;30(2):65-72.

8. Masaki H, Shimamoto K, Inokuchi S, Ishizaki S. Treatment of Chronic Constipation using Elobixibat in a Real-World Setting: A Retrospective Cohort Study using an Electronic Medical Records Database in Japan. Curr Ther Res Clin Exp. 2023 Oct 28;99:100724.

9. Okumura Y, Kimura T, Inokuchi S, Okamoto M, Takano T, Miyake M, Kumagai Y. Real-World Hepatic Safety of Oral Acetaminophen Versus Loxoprofen/Celecoxib: Using a Nationwide Electronic Medical Record Database. J Clin Pharmacol. 2023 Jul;63(7):798-806.

10. Uno S, Midorikawa S, Inoue K, Ichikawa D, Ito T, Kuroda J, Suzuki K. Survival outcomes among patients with multiple myeloma in the era of novel agents: exploratory assessment using an electronic medical record database in Japan. PLoS One. 2023 May 31;18(5):e0285947.

Japan Medical Data Center® (JMDC): Payer Database (Japan)

Database Contact Data

JMDC Inc.
Sumitomo Shibadaimon Bldg 10F 
2-5-5, Shibadaimon
Minato-ku
Tokyo 105-0012
JAPAN
Phone: +81-03-5733-5010 
Email: medhelp@jmdc.co.jp

Alternate Contact

N/A

References of Studies Using/Describing Database

1. Miyairi I, Miyazawa S, Takahashi Y, Kojima S, Kitanishi Y, Ogura E. Incidence of severe illness in pediatric influenza outpatients treated with baloxavir or neuraminidase inhibitors. J Infect Chemother. 2025 Mar;31(3):102606.

2. Aranishi T, Igarashi A, Hara K, Osumili B, Cai Z, Mizogaki A, Sato M, Takeuchi M, Minghetti A, Hunt B, Kadowaki T. The Long-Term Cost-Effectiveness of Tirzepatide 5 mg versus Dulaglutide 0.75 mg for the Treatment of People with Type 2 Diabetes in Japan. Diabetes Ther. 2025 Mar;16(3):431-445.

3. Miyazato K, Ohtsu H, Shimomura A, Yonemoto N, Shimizu C, Sase K, Ueda S. Impact of adjuvant trastuzumab therapy and its discontinuation on cardiac function and mortality in patients with early-stage breast cancer: An analysis based on the Japanese Receipt Claim Database. Breast. 2025 Feb;79:103871.

4. Nagashima R, Kato H, Matsuzaki T, Nagahama T, Goto R. Utilisation of outpatient care immediately before emergency admission for ambulatory care-sensitive conditions in Japan: a retrospective observational study. BMJ Open. 2025 Jan 8;15(1):e086714.

5. Takizawa T, Kitano T, Togo K, Yoshikawa R, Iijima M. Clinical practice for migraine treatment and characteristics of medical facilities and physicians treating migraine: Insights from a retrospective cohort study using a Japanese claims database. PLoS One. 2024 Dec 19;19(12):e0315610.

6. Suzuki Y, Iwagami M, Shimizu S, Goto A. Effects of incentivising dialysis facilities on peripheral arterial disease care in patients undergoing haemodialysis: a claims-based cohort study. Clin Kidney J. 2024 Nov 18;17(12):sfae342.

7. Okada K, Nakayama Y, Xu J, Cheng Y, Tanaka J. A nation-wide medical record database study: Value of hepatitis B surface antigen loss in chronic hepatitis B patients in Japan. Hepatol Res. 2024 Nov;54(11):1004-1015.

8. Kawai K, Ishii M, Kokado Y, Horikawa T, Hoshino J. Outcomes of Early Versus Delayed Anemia Treatment in Nondialysis-Dependent CKD. Kidney Int Rep. 2024 Apr 15;9(7):2056-2066.

9. Hayashi A, Mizuno K, Shinkawa K, Sakoda K, Yoshida S, Takeuchi M, Yanagita M, Kawakami K. Effect of multidisciplinary care on diabetic kidney disease: a retrospective cohort study. BMC nephrology. 2024 Mar 25;25(1):114.

10. Okumura Y, Fujiwara T, Tokumasu H, Kimura T, Hinotsu S. A new electronic medical record database linked to claims data and discharge abstract data (the RWD database) in Japan: Study design and profile. Annals of Clinical Epidemiology. 2024;6(3):58-64.

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