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Heidi Fischer, PhD

TitleResearch Scientist I
InstitutionKaiser Permanente Southern California
DepartmentDepartment of Research and Evaluation
Address100 South Los Robles Avenue
Pasadena CA 91101
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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. An J, Fischer H, Ni L, Xia M, Choi SK, Morrissette KL, Wei R, Reynolds K, Muntner P, Safford MM, Moran AE, Bellows BK, Isasi CR, Allen NB, Xanthakis V, Colantonio LD, Zhang Y. Association Between Young Adult Characteristics and Blood Pressure Trajectories. J Am Heart Assoc. 2024 Apr 02; e033053. PMID: 38563367.
      Citations:    Fields:    Translation:Humans
    2. Ku JH, Fischer H, Qian LX, Li K, Skarbinski J, Shaw S, Bruxvoort KJ, Lewin BJ, Spence BC, Tartof SY. Latent tuberculosis infection testing practices in a large U.S. integrated healthcare system. Clin Infect Dis. 2024 Jan 11. PMID: 38207124.
      Citations:    Fields:    Translation:HumansPHPublic Health
    3. Lonky NM, Chiu V, Portugal C, Estrada EL, Chang J, Fischer H, Vora JB, Harrison LI, Peng L, Munro MG. Adenomyosis in women undergoing hysterectomy for abnormal uterine bleeding associated with uterine leiomyomas. PLoS One. 2023; 18(12):e0294925. PMID: 38079406; PMCID: PMC10712893.
      Citations:    Fields:    Translation:Humans
    4. Fischer H, Qian L, Li Z, Garba S, Bruxvoort KJ, Skarbinski J, Ku JH, Lewin BJ, Mahale PS, Shaw SF, Spence BC, Tartof SY. Prior Screening for Latent Tuberculosis Among Patients Diagnosed With Tuberculosis Disease: Missed Opportunities? Open Forum Infect Dis. 2023 Nov; 10(11):ofad545. PMID: 38023560; PMCID: PMC10651207.
      Citations:    
    5. Bruxvoort KJ, Fischer H, Lewnard JA, Hong VX, Pomichowski M, Grant LR, J?dar L, Gessner BD, Tartof SY. Risk of subsequent lower respiratory tract infection (LRTI) after hospitalization for COVID-19 LRTI and non-COVID-19 LRTI: a retrospective cohort study. Pneumonia (Nathan). 2023 Oct 05; 15(1):15. PMID: 37794443; PMCID: PMC10552217.
      Citations:    
    6. Skarbinski J, Fischer H, Hong V, Liu L, Yau VM, Incerti D, Qian L, Ackerson BK, Amsden LB, Shaw SF, Tartof SY. Real-World Evidence to Supplement Randomized Clinical Trials: Tocilizumab for Severe COVID-19 Pneumonia vs. a Cohort Receiving Standard of Care. Clin Pharmacol Ther. 2023 Nov; 114(5):1073-1081. PMID: 37571812.
      Citations:    Fields:    
    7. Malden DE, Tartof SY, Ackerson BK, Hong V, Skarbinski J, Yau V, Qian L, Fischer H, Shaw SF, Caparosa S, Xie F. Natural Language Processing for Improved Characterization of COVID-19 Symptoms: Observational Study of 350,000 Patients in a Large Integrated Health Care System. JMIR Public Health Surveill. 2022 12 30; 8(12):e41529. PMID: 36446133; PMCID: PMC9822566.
      Citations: 9     Translation:HumansCells
    8. Keaveny TM, Adams AL, Fischer H, Brara HS, Burch S, Guppy KH, Kopperdahl DL. Increased risks of vertebral fracture and reoperation in primary spinal fusion patients who test positive for osteoporosis by Biomechanical Computed Tomography analysis. Spine J. 2023 Mar; 23(3):412-424. PMID: 36372353.
      Citations: 5     Fields:    Translation:Humans
    9. Skarbinski J, Liu L, Hong V, Amsden LB, Fireman BH, Yau VM, Incerti D, Qian L, Fischer H, Ackerson BK, Shaw SF, Tartof SY. Retrospective cohort study to assess the association between treatment with tocilizumab and mortality among mechanically ventilated patients with COVID-19. BMJ Open. 2022 10 31; 12(10):e060358. PMID: 36316080; PMCID: PMC9627573.
      Citations:    Fields:    Translation:HumansCells
    10. Coleman KJ, Basu A, Barton LJ, Fischer H, Arterburn DE, Barthold D, Courcoulas A, Crawford CL, Kim BB, Fedorka PN, Mun EC, Murali SB, Reynolds K, Zane RE, Alskaf S. Remission and Relapse of Dyslipidemia After Vertical Sleeve Gastrectomy vs Roux-en-Y Gastric Bypass in a Racially and Ethnically Diverse Population. JAMA Netw Open. 2022 09 01; 5(9):e2233843. PMID: 36169953; PMCID: PMC9520365.
      Citations: 6     Fields:    Translation:Humans
    11. Fischer H, Qian L, Skarbinski J, Bruxvoort KJ, Wei R, Li K, Amsden LB, Wood MS, Eaton A, Spence BC, Shaw SF, Tartof SY. Development and validation of a prediction algorithm to identify birth in countries with high tuberculosis incidence in two large California health systems. PLoS One. 2022; 17(8):e0273363. PMID: 36006985; PMCID: PMC9409495.
      Citations: 3     Fields:    Translation:Humans
    12. Stuart R, Fischer H, Leitzke AS, Becker D, Saheba N, Coleman KJ. The Effectiveness of Internet-Based Cognitive Behavioral Therapy for the Treatment of Depression in a Large Real-World Primary Care Practice: A Randomized Trial. Perm J. 2022 09 14; 26(3):53-60. PMID: 35939620; PMCID: PMC9683746.
      Citations: 1     Fields:    Translation:Humans
    13. Fisher DP, Liu L, Arterburn D, Coleman KJ, Courcoulas A, Haneuse S, Johnson E, Li RA, Theis MK, Taylor B, Fischer H, Cooper J, Herrinton LJ. Remission and Relapse of Hypertension After Bariatric Surgery: A Retrospective Study on Long-Term Outcomes. Ann Surg Open. 2022 Jun; 3(2):e158. PMID: 36936722; PMCID: PMC10013161.
      Citations: 1     
    14. Mefford MT, Koyama SY, De Jesus J, Wei R, Fischer H, Harrison TN, Woo P, Reynolds K. Representativeness of the GALACTIC-HF Clinical Trial in Patients Having Heart Failure With Reduced Ejection Fraction. J Am Heart Assoc. 2022 Apr 05; 11(7):e023766. PMID: 35322672.
      Citations: 3     Fields:    Translation:Humans
    15. Basu A, Barton LJ, Fischer H, Reynolds K, Arterburn DE, Barthold D, Courcoulas A, Crawford CL, Fedorka PN, Kim BB, Mun EC, Murali SB, Zane RE, Coleman KJ. Comparative effectiveness of gastric bypass and sleeve gastrectomy on predicted 10-year risk of cardiovascular disease 5 years after surgery. Surg Obes Relat Dis. 2022 06; 18(6):716-726. PMID: 35397945; PMCID: PMC9177695.
      Citations: 2     Fields:    Translation:Humans
    16. Harrison TN, Reynolds K, Hahn EE, Munoz-Plaza CE, Yi DK, Fischer H, Luong TQ, Sim JJ, Brettler J, Handler J, Mittman BS, Singh H, Kanter MH, Danforth KN. Laboratory monitoring to reduce adverse drug-related events: a mixed methods study. J Manag Care Spec Pharm. 2022 Jan; 28(1):16-25. PMID: 34949121.
      Citations: 1     Fields:    Translation:Humans
    17. Barthold D, Brouwer E, Barton LJ, Arterburn DE, Basu A, Courcoulas A, Crawford CL, Fedorka PN, Fischer H, Kim BB, Mun EC, Murali SB, Reynolds K, Yoon TK, Zane RE, Coleman KJ. Minimum Threshold of Bariatric Surgical Weight Loss for Initial Diabetes Remission. Diabetes Care. 2022 Jan 01; 45(1):92-99. PMID: 34518376; PMCID: PMC8753771.
      Citations: 18     Fields:    Translation:Humans
    18. Lewnard JA, Bruxvoort KJ, Fischer H, Hong VX, Grant LR, Jódar L, Cané A, Gessner BD, Tartof SY. Effectiveness of 13-valent pneumococcal conjugate vaccine against medically-attended lower respiratory tract infection and pneumonia among older adults. Clin Infect Dis. 2021 Dec 30. PMID: 34967907.
      Citations: 20     Fields:    Translation:HumansCells
    19. An J, Bider Z, Luong TQ, Cheetham TC, Lang DT, Fischer H, Reynolds K. Long-Term Medication Adherence Trajectories to Direct Oral Anticoagulants and Clinical Outcomes in Patients With Atrial Fibrillation. J Am Heart Assoc. 2021 11 02; 10(21):e021601. PMID: 34713708; PMCID: PMC8751846.
      Citations: 9     Fields:    Translation:Humans
    20. Tartof SY, Slezak JM, Fischer H, Hong V, Ackerson BK, Ranasinghe ON, Frankland TB, Ogun OA, Zamparo JM, Gray S, Valluri SR, Pan K, Angulo FJ, Jodar L, McLaughlin JM. Effectiveness of mRNA BNT162b2 COVID-19 vaccine up to 6 months in a large integrated health system in the USA: a retrospective cohort study. Lancet. 2021 10 16; 398(10309):1407-1416. PMID: 34619098; PMCID: PMC8489881.
      Citations: 647     Fields:    Translation:HumansCellsPHPublic Health
    21. Reynolds K, Barton LJ, Basu A, Fischer H, Arterburn DE, Barthold D, Courcoulas A, Crawford CL, Kim BB, Fedorka PN, Mun EC, Murali SB, Zane RE, Coleman KJ. Comparative Effectiveness of Gastric Bypass and Vertical Sleeve Gastrectomy for Hypertension Remission and Relapse: The ENGAGE CVD Study. Hypertension. 2021 Sep; 78(4):1116-1125. PMID: 34365807; PMCID: PMC8429098.
      Citations: 8     Fields:    Translation:Humans
    22. Slezak J, Bruxvoort K, Fischer H, Broder B, Ackerson B, Tartof S. Rate and severity of suspected SARS-Cov2 reinfection in a cohort of PCR-positive COVID-19 patients. Clin Microbiol Infect. 2021 Jul 28. PMID: 34419576; PMCID: PMC8373524.
      Citations: 28     Fields:    Translation:HumansCells
    23. Lewnard JA, Bruxvoort KJ, Fischer H, Hong VX, Grant LR, Jódar L, Gessner BD, Tartof SY. Prevention of COVID-19 among older adults receiving pneumococcal conjugate vaccine suggests interactions between Streptococcus pneumoniae and SARS-CoV-2 in the respiratory tract. J Infect Dis. 2021 Mar 09. PMID: 33693636; PMCID: PMC7989304.
      Citations: 26     Fields:    Translation:HumansCells
    24. Coleman KJ, Shu YH, Fischer H, Johnson E, Yoon TK, Taylor B, Imam T, DeRose S, Haneuse S, Herrinton LJ, Fisher D, Li RA, Theis MK, Liu L, Courcoulas AP, Smith DH, Arterburn DE, Friedman AN. Bariatric Surgery and Risk of Death in Persons with Chronic Kidney Disease. Ann Surg. 2021 Mar 03. PMID: 33914480; PMCID: PMC8413380.
      Citations: 11     Fields:    Translation:Humans
    25. Koffman L, Levis AW, Arterburn D, Coleman KJ, Herrinton LJ, Cooper J, Ewing J, Fischer H, Fraser JR, Johnson E, Taylor B, Theis MK, Liu L, Courcoulas A, Li R, Fisher DP, Amsden L, Haneuse S. Investigating Bias from Missing Data in an Electronic Health Records-Based Study of Weight Loss After Bariatric Surgery. Obes Surg. 2021 05; 31(5):2125-2135. PMID: 33462670.
      Citations: 3     Fields:    Translation:Humans
    26. Fischer H, Weiss RE, Friedman AN, Imam TH, Coleman KJ. The relationship between kidney function and body mass index before and after bariatric surgery in patients with chronic kidney disease. Surg Obes Relat Dis. 2021 Mar; 17(3):508-515. PMID: 33358080; PMCID: PMC7904605.
      Citations: 4     Fields:    Translation:Humans
    27. Tartof SY, Qian L, Hong V, Wei R, Nadjafi RF, Fischer H, Li Z, Shaw SF, Caparosa SL, Nau CL, Saxena T, Rieg GK, Ackerson BK, Sharp AL, Skarbinski J, Naik TK, Murali SB. Obesity and Mortality Among Patients Diagnosed With COVID-19: Results From an Integrated Health Care Organization. Ann Intern Med. 2020 11 17; 173(10):773-781. PMID: 32783686; PMCID: PMC7429998.
      Citations: 290     Fields:    Translation:HumansCellsPHPublic Health
    28. Merced K, Imel ZE, Baldwin SA, Fischer H, Yoon T, Stewart C, Simon G, Ahmedani B, Beck A, Daida Y, Hubley S, Rossom R, Waitzfelder B, Zeber JE, Coleman KJ. Provider Contributions to Disparities in Mental Health Care. Psychiatr Serv. 2020 08 01; 71(8):765-771. PMID: 32340593; PMCID: PMC7590958.
      Citations: 3     Fields:    Translation:Humans
    29. Coleman KJ, Fischer H, Arterburn DE, Barthold D, Barton LJ, Basu A, Courcoulas A, Crawford CL, Fedorka P, Kim B, Mun E, Murali S, Reynolds K, Suh K, Wei R, Yoon TK, Zane R. Effectiveness of Gastric Bypass Versus Gastric Sleeve for Cardiovascular Disease: Protocol and Baseline Results for a Comparative Effectiveness Study. JMIR Res Protoc. 2020 Apr 06; 9(4):e14936. PMID: 32249757; PMCID: PMC7171566.
      Citations: 6     
    30. Lewis KH, Fischer H, Ard J, Bessesen D, Daley M, Desai J, Fitzpatrick S, Horberg M, Koebnick C, Oshiro C, Young DR, Arterburn DE. Response to "Knowledge Gaps in Long-Term Phentermine Use". Obesity (Silver Spring). 2019 08; 27(8):1220. PMID: 31264802.
      Citations:    Fields:    Translation:Humans
    31. Lewis KH, Fischer H, Ard J, Barton L, Bessesen DH, Daley MF, Desai J, Fitzpatrick SL, Horberg M, Koebnick C, Oshiro C, Yamamoto A, Young DR, Arterburn DE. Safety and Effectiveness of Longer-Term Phentermine Use: Clinical Outcomes from an Electronic Health Record Cohort. Obesity (Silver Spring). 2019 Apr; 27(4):591-602. PMID: 30900410.
      Citations: 33     Fields:    Translation:Humans
    32. Jabaji RB, Fischer H, Kern T, Chien GW. Trend of Surgical Treatment of Localized Renal Cell Carcinoma. Perm J. 2019; 23:18-108. PMID: 30624203; PMCID: PMC6326554.
      Citations: 8     Fields:    Translation:Humans
    33. Adams AL, Fischer H, Kopperdahl DL, Lee DC, Black DM, Bouxsein ML, Fatemi S, Khosla S, Orwoll ES, Siris ES, Keaveny TM. Osteoporosis and Hip Fracture Risk From Routine Computed Tomography Scans: The Fracture, Osteoporosis, and CT Utilization Study (FOCUS). J Bone Miner Res. 2018 Jul; 33(7):1291-1301. PMID: 29665068.
      Citations: 33     Fields:    Translation:Humans
    34. Young DR, Fischer H, Arterburn D, Bessesen D, Cromwell L, Daley MF, Desai J, Ferrara A, Fitzpatrick SL, Horberg MA, Koebnick C, Nau CL, Oshiro C, Waitzfelder B, Yamamoto A. Associations of overweight/obesity and socioeconomic status with hypertension prevalence across racial and ethnic groups. J Clin Hypertens (Greenwich). 2018 Mar; 20(3):532-540. PMID: 29432662.
      Citations: 15     Fields:    Translation:Humans
    35. Zeber JE, Coleman KJ, Fischer H, Yoon TK, Ahmedani BK, Beck A, Hubley S, Imel ZE, Rossom RC, Shortreed SM, Stewart C, Waitzfelder BE, Simon GE. The impact of race and ethnicity on rates of return to psychotherapy for depression. Depress Anxiety. 2017 12; 34(12):1157-1163. PMID: 29095538.
      Citations: 1     Fields:    Translation:Humans
    36. Fisher D, Coleman KJ, Arterburn DE, Fischer H, Yamamoto A, Young DR, Sherwood NE, Trinacty CM, Lewis KH. Mental illness in bariatric surgery: A cohort study from the PORTAL network. Obesity (Silver Spring). 2017 05; 25(5):850-856. PMID: 28440047.
      Citations: 19     Fields:    Translation:Humans
    37. Sharif MZ, Alcalá HE, Albert SL, Fischer H. Deconstructing family meals: Do family structure, gender and employment status influence the odds of having a family meal? Appetite. 2017 07 01; 114:187-193. PMID: 28347778; PMCID: PMC5926186.
      Citations: 13     Fields:    Translation:Humans
    38. Casillas RA, Kim B, Fischer H, Zelada Getty JL, Um SS, Coleman KJ. Comparative effectiveness of sleeve gastrectomy versus Roux-en-Y gastric bypass for weight loss and safety outcomes in older adults. Surg Obes Relat Dis. 2017 Sep; 13(9):1476-1483. PMID: 28438494.
      Citations: 15     Fields:    Translation:Humans
    39. Imam TH, Fischer H, Jing B, Burchette R, Henry S, DeRose SF, Coleman KJ. Estimated GFR Before and After Bariatric Surgery in CKD. Am J Kidney Dis. 2017 Mar; 69(3):380-388. PMID: 27927587.
      Citations: 32     Fields:    Translation:Humans
    40. Koebnick C, Fischer H, Daley MF, Ferrara A, Horberg MA, Waitzfelder B, Young DR, Gould MK. Interacting effects of obesity, race, ethnicity and sex on the incidence and control of adult-onset asthma. Allergy Asthma Clin Immunol. 2016; 12:50. PMID: 27777591.
      Citations: 11     
    41. Lewis KH, Gudzune KA, Fischer H, Yamamoto A, Young DR. Racial and ethnic minority patients report different weight-related care experiences than non-Hispanic Whites. Prev Med Rep. 2016 Dec; 4:296-302. PMID: 27486558.
      Citations: 14     
    42. Fischer H, Kheifets L, Huss A, Peters TL, Vermeulen R, Ye W, Fang F, Wiebert P, Vergara XP, Feychting M. Occupational Exposure to Electric Shocks and Magnetic Fields and Amyotrophic Lateral Sclerosis in Sweden. Epidemiology. 2015 Nov; 26(6):824-30. PMID: 26414853.
      Citations: 9     Fields:    Translation:HumansPHPublic Health
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