Harvard Catalyst Profiles

Contact, publication, and social network information about Harvard faculty and fellows.

Zak Kohane, M.D.,Ph.D.

Co-Author

This page shows the publications co-authored by Zak Kohane and Tianxi Cai.
Connection Strength

5.367
  1. What Every Reader Should Know About Studies Using Electronic Health Record Data but May Be Afraid to Ask. J Med Internet Res. 2021 03 02; 23(3):e22219.
    View in: PubMed
    Score: 0.950
  2. ATLAS: an automated association test using probabilistically linked health records with application to genetic studies. J Am Med Inform Assoc. 2021 Oct 05.
    View in: PubMed
    Score: 0.248
  3. A fast divide-and-conquer sparse Cox regression. Biostatistics. 2021 04 10; 22(2):381-401.
    View in: PubMed
    Score: 0.239
  4. Temporal bias in case-control design: preventing reliable predictions of the future. Nat Commun. 2021 02 17; 12(1):1107.
    View in: PubMed
    Score: 0.237
  5. International electronic health record-derived COVID-19 clinical course profiles: the 4CE consortium. NPJ Digit Med. 2020; 3:109.
    View in: PubMed
    Score: 0.229
  6. Clinical Concept Embeddings Learned from Massive Sources of Multimodal Medical Data. Pac Symp Biocomput. 2020; 25:295-306.
    View in: PubMed
    Score: 0.219
  7. High-throughput multimodal automated phenotyping (MAP) with application to PheWAS. J Am Med Inform Assoc. 2019 11 01; 26(11):1255-1262.
    View in: PubMed
    Score: 0.217
  8. Automated grouping of medical codes via multiview banded spectral clustering. J Biomed Inform. 2019 12; 100:103322.
    View in: PubMed
    Score: 0.216
  9. Probabilistic record linkage of de-identified research datasets with discrepancies using diagnosis codes. Sci Data. 2019 01 08; 6:180298.
    View in: PubMed
    Score: 0.205
  10. Enabling phenotypic big data with PheNorm. J Am Med Inform Assoc. 2018 01 01; 25(1):54-60.
    View in: PubMed
    Score: 0.191
  11. Surrogate-assisted feature extraction for high-throughput phenotyping. J Am Med Inform Assoc. 2017 Apr 01; 24(e1):e143-e149.
    View in: PubMed
    Score: 0.181
  12. Statin Use Is Associated With Reduced Risk of Colorectal Cancer in Patients With Inflammatory Bowel Diseases. Clin Gastroenterol Hepatol. 2016 07; 14(7):973-9.
    View in: PubMed
    Score: 0.168
  13. Identification of Nonresponse to Treatment Using Narrative Data in an Electronic Health Record Inflammatory Bowel Disease Cohort. Inflamm Bowel Dis. 2016 Jan; 22(1):151-8.
    View in: PubMed
    Score: 0.166
  14. Methods to Develop an Electronic Medical Record Phenotype Algorithm to Compare the Risk of Coronary Artery Disease across 3 Chronic Disease Cohorts. PLoS One. 2015; 10(8):e0136651.
    View in: PubMed
    Score: 0.162
  15. Toward high-throughput phenotyping: unbiased automated feature extraction and selection from knowledge sources. J Am Med Inform Assoc. 2015 Sep; 22(5):993-1000.
    View in: PubMed
    Score: 0.158
  16. Development of phenotype algorithms using electronic medical records and incorporating natural language processing. BMJ. 2015 Apr 24; 350:h1885.
    View in: PubMed
    Score: 0.158
  17. Improving the power of genetic association tests with imperfect phenotype derived from electronic medical records. Hum Genet. 2014 Nov; 133(11):1369-82.
    View in: PubMed
    Score: 0.150
  18. Multinational characterization of neurological phenotypes in patients hospitalized with COVID-19. Sci Rep. 2021 10 12; 11(1):20238.
    View in: PubMed
    Score: 0.062
  19. International Changes in COVID-19 Clinical Trajectories Across 315 Hospitals and 6 Countries: Retrospective Cohort Study. J Med Internet Res. 2021 10 11; 23(10):e31400.
    View in: PubMed
    Score: 0.062
  20. International Analysis of Electronic Health Records of Children and Youth Hospitalized With COVID-19 Infection in 6 Countries. JAMA Netw Open. 2021 06 01; 4(6):e2112596.
    View in: PubMed
    Score: 0.060
  21. International Comparisons of Harmonized Laboratory Value Trajectories to Predict Severe COVID-19: Leveraging the 4CE Collaborative Across 342 Hospitals and 6 Countries: A Retrospective Cohort Study. medRxiv. 2021 Feb 05.
    View in: PubMed
    Score: 0.059
  22. Multinational Prevalence of Neurological Phenotypes in Patients Hospitalized with COVID-19. medRxiv. 2021 Jan 29.
    View in: PubMed
    Score: 0.059
  23. High-throughput phenotyping with electronic medical record data using a common semi-supervised approach (PheCAP). Nat Protoc. 2019 12; 14(12):3426-3444.
    View in: PubMed
    Score: 0.054
  24. Use of Narrative Concepts in Electronic Health Records to Validate Associations Between Genetic Factors and Response to Treatment of Inflammatory Bowel Diseases. Clin Gastroenterol Hepatol. 2020 07; 18(8):1890-1892.
    View in: PubMed
    Score: 0.053
  25. Feature extraction for phenotyping from semantic and knowledge resources. J Biomed Inform. 2019 03; 91:103122.
    View in: PubMed
    Score: 0.051
  26. Comparative Effectiveness of Infliximab and Adalimumab in Crohn's Disease and Ulcerative Colitis. Inflamm Bowel Dis. 2016 Apr; 22(4):880-5.
    View in: PubMed
    Score: 0.042
  27. Common Genetic Variants Influence Circulating Vitamin D Levels in Inflammatory Bowel Diseases. Inflamm Bowel Dis. 2015 Nov; 21(11):2507-14.
    View in: PubMed
    Score: 0.041
  28. Validation of electronic health record phenotyping of bipolar disorder cases and controls. Am J Psychiatry. 2015 Apr; 172(4):363-72.
    View in: PubMed
    Score: 0.039
  29. Mode of childbirth and long-term outcomes in women with inflammatory bowel diseases. Dig Dis Sci. 2015 Feb; 60(2):471-7.
    View in: PubMed
    Score: 0.038
  30. Colonoscopy is associated with a reduced risk for colon cancer and mortality in patients with inflammatory bowel diseases. Clin Gastroenterol Hepatol. 2015 Feb; 13(2):322-329.e1.
    View in: PubMed
    Score: 0.038
  31. Population-level evidence for an autoimmune etiology of epilepsy. JAMA Neurol. 2014 May; 71(5):569-74.
    View in: PubMed
    Score: 0.037
  32. Thromboprophylaxis is associated with reduced post-hospitalization venous thromboembolic events in patients with inflammatory bowel diseases. Clin Gastroenterol Hepatol. 2014 Nov; 12(11):1905-10.
    View in: PubMed
    Score: 0.037
  33. Mortality and extraintestinal cancers in patients with primary sclerosing cholangitis and inflammatory bowel disease. J Crohns Colitis. 2014 Sep; 8(9):956-63.
    View in: PubMed
    Score: 0.036
  34. Serum inflammatory markers and risk of colorectal cancer in patients with inflammatory bowel diseases. Clin Gastroenterol Hepatol. 2014 Aug; 12(8):1342-8.e1.
    View in: PubMed
    Score: 0.036
  35. Lipid and lipoprotein levels and trend in rheumatoid arthritis compared to the general population. Arthritis Care Res (Hoboken). 2013 Dec; 65(12):2046-50.
    View in: PubMed
    Score: 0.036
  36. Modeling disease severity in multiple sclerosis using electronic health records. PLoS One. 2013; 8(11):e78927.
    View in: PubMed
    Score: 0.036
  37. Association between reduced plasma 25-hydroxy vitamin D and increased risk of cancer in patients with inflammatory bowel diseases. Clin Gastroenterol Hepatol. 2014 May; 12(5):821-7.
    View in: PubMed
    Score: 0.036
  38. Normalization of plasma 25-hydroxy vitamin D is associated with reduced risk of surgery in Crohn's disease. Inflamm Bowel Dis. 2013 Aug; 19(9):1921-7.
    View in: PubMed
    Score: 0.035
  39. Improving case definition of Crohn's disease and ulcerative colitis in electronic medical records using natural language processing: a novel informatics approach. Inflamm Bowel Dis. 2013 Jun; 19(7):1411-20.
    View in: PubMed
    Score: 0.035
  40. Association between low density lipoprotein and rheumatoid arthritis genetic factors with low density lipoprotein levels in rheumatoid arthritis and non-rheumatoid arthritis controls. Ann Rheum Dis. 2014 Jun; 73(6):1170-5.
    View in: PubMed
    Score: 0.035
  41. Associations of autoantibodies, autoimmune risk alleles, and clinical diagnoses from the electronic medical records in rheumatoid arthritis cases and non-rheumatoid arthritis controls. Arthritis Rheum. 2013 Mar; 65(3):571-81.
    View in: PubMed
    Score: 0.034
  42. Similar risk of depression and anxiety following surgery or hospitalization for Crohn's disease and ulcerative colitis. Am J Gastroenterol. 2013 Apr; 108(4):594-601.
    View in: PubMed
    Score: 0.034
  43. Psychiatric co-morbidity is associated with increased risk of surgery in Crohn's disease. Aliment Pharmacol Ther. 2013 Feb; 37(4):445-54.
    View in: PubMed
    Score: 0.034
  44. A unified inference procedure for a class of measures to assess improvement in risk prediction systems with survival data. Stat Med. 2013 Jun 30; 32(14):2430-42.
    View in: PubMed
    Score: 0.033
  45. Predictors of severe outcomes associated with Clostridium difficile infection in patients with inflammatory bowel disease. Aliment Pharmacol Ther. 2012 Apr; 35(7):789-95.
    View in: PubMed
    Score: 0.032
  46. Using electronic medical records to enable large-scale studies in psychiatry: treatment resistant depression as a model. Psychol Med. 2012 Jan; 42(1):41-50.
    View in: PubMed
    Score: 0.030
  47. Genetic basis of autoantibody positive and negative rheumatoid arthritis risk in a multi-ethnic cohort derived from electronic health records. Am J Hum Genet. 2011 Jan 07; 88(1):57-69.
    View in: PubMed
    Score: 0.029
  48. Electronic medical records for discovery research in rheumatoid arthritis. Arthritis Care Res (Hoboken). 2010 Aug; 62(8):1120-7.
    View in: PubMed
    Score: 0.029
Connection Strength
The connection strength for co-authors is the sum of the scores for each of their shared publications.

Publication scores are based on many factors, including how long ago they were written and whether the person is a first or senior author.
Funded by the NIH National Center for Advancing Translational Sciences through its Clinical and Translational Science Awards Program, grant number UL1TR002541.