Red Door Analytics

Rickard is a biostatistician with ample experience working with real-world data. Throughout his career he has collaborated closely with clinical researchers and deeply values their insights — particularly in translating high-quality research into actionable improvements in healthcare.

He specialises in prediction and regression modelling and the handling of missing data, and enjoys teaching and communicating statistics. He joined Red Door Analytics in August 2025 and maintains an affiliation with Hannes Hagström's research group at the Department of Medicine Huddinge, Karolinska Institutet.

Publications

16 publications featuring Rickard

Peer-reviewed papers from our full list that Rickard has co-authored. Most recent first.

2026

  1. Jia L, Grigoriadis A, Suzuki A, Strandberg R, Skott P, Sandborgh Englund G, Trulsson M, Kumar A. Determinants of oral functions and oral frailty in older community-dwelling individuals: a comprehensive analysis. The Journals of Gerontology: Series A 2026. View →
    Cite
    @article{jia2026,
      author  = {Jia, L. and Grigoriadis, A. and Suzuki, A. and Strandberg, R. and Skott, P. and Sandborgh Englund, G. and Trulsson, M. and Kumar, A.},
      title   = {{Determinants of oral functions and oral frailty in older community-dwelling individuals: a comprehensive analysis}},
      journal = {The Journals of Gerontology: Series A},
      year    = {2026},
      doi     = {10.1093/gerona/glag021}
    }
    
    TY  - JOUR
    AU  - Jia, L.
    AU  - Grigoriadis, A.
    AU  - Suzuki, A.
    AU  - Strandberg, R.
    AU  - Skott, P.
    AU  - Sandborgh Englund, G.
    AU  - Trulsson, M.
    AU  - Kumar, A.
    TI  - Determinants of oral functions and oral frailty in older community-dwelling individuals: a comprehensive analysis
    JO  - The Journals of Gerontology: Series A
    PY  - 2026
    DO  - 10.1093/gerona/glag021
    UR  - https://doi.org/10.1093/gerona/glag021
    ER  - 
    
  2. van Kleef LA, Strandberg R, Pustjens J, Hammar N, Janssen HLA, Hagström H, Brouwer WP. FIB-4-based Referral Pathways Have Suboptimal Accuracy to Identify Increased Liver Stiffness and Incident Advanced Liver Disease. Clinical Gastroenterology and Hepatology 2026;24(3):733-742. View →
    Cite
    @article{vankleef2026,
      author  = {van Kleef, L. A. and Strandberg, R. and Pustjens, J. and Hammar, N. and Janssen, H. L. A. and Hagström, H. and Brouwer, W. P.},
      title   = {{FIB-4-based Referral Pathways Have Suboptimal Accuracy to Identify Increased Liver Stiffness and Incident Advanced Liver Disease}},
      journal = {Clinical Gastroenterology and Hepatology},
      year    = {2026},
      volume  = {24},
      number  = {3},
      pages   = {733--742},
      doi     = {10.1016/j.cgh.2025.06.036}
    }
    
    TY  - JOUR
    AU  - van Kleef, L. A.
    AU  - Strandberg, R.
    AU  - Pustjens, J.
    AU  - Hammar, N.
    AU  - Janssen, H. L. A.
    AU  - Hagström, H.
    AU  - Brouwer, W. P.
    TI  - FIB-4-based Referral Pathways Have Suboptimal Accuracy to Identify Increased Liver Stiffness and Incident Advanced Liver Disease
    JO  - Clinical Gastroenterology and Hepatology
    PY  - 2026
    VL  - 24
    IS  - 3
    SP  - 733
    EP  - 742
    DO  - 10.1016/j.cgh.2025.06.036
    UR  - https://doi.org/10.1016/j.cgh.2025.06.036
    ER  - 
    

2025

  1. Strandberg R, Åberg F, Asteljoki JV, et al. Use of new CORE risk score to predict 10 year risk of liver cirrhosis in general population: population based cohort study. The British Medical Journal 2025;390:e083182. View →
    Cite
    @article{strandberg2025,
      author  = {Strandberg, R. and Åberg, F. and Asteljoki, J. V. and others},
      title   = {{Use of new CORE risk score to predict 10 year risk of liver cirrhosis in general population: population based cohort study}},
      journal = {The British Medical Journal},
      year    = {2025},
      volume  = {390},
      pages   = {e083182},
      doi     = {10.1136/bmj-2024-083182}
    }
    
    TY  - JOUR
    AU  - Strandberg, R.
    AU  - Åberg, F.
    AU  - Asteljoki, J. V.
    TI  - Use of new CORE risk score to predict 10 year risk of liver cirrhosis in general population: population based cohort study
    JO  - The British Medical Journal
    PY  - 2025
    VL  - 390
    SP  - e083182
    DO  - 10.1136/bmj-2024-083182
    UR  - https://doi.org/10.1136/bmj-2024-083182
    ER  - 
    
  2. Lindfors A, Strandberg R, Hagström H. Screening for advanced liver fibrosis due to metabolic dysfunction-associated steatotic liver disease alongside retina scanning in people with type 2 diabetes: a cross-sectional study. The Lancet Gastroenterology & Hepatology 2025;10(2):125-137. View →
    Cite
    @article{lindfors2025,
      author  = {Lindfors, A. and Strandberg, R. and Hagström, H.},
      title   = {{Screening for advanced liver fibrosis due to metabolic dysfunction-associated steatotic liver disease alongside retina scanning in people with type 2 diabetes: a cross-sectional study}},
      journal = {The Lancet Gastroenterology \& Hepatology},
      year    = {2025},
      volume  = {10},
      number  = {2},
      pages   = {125--137},
      doi     = {10.1016/s2468-1253(24)00313-3}
    }
    
    TY  - JOUR
    AU  - Lindfors, A.
    AU  - Strandberg, R.
    AU  - Hagström, H.
    TI  - Screening for advanced liver fibrosis due to metabolic dysfunction-associated steatotic liver disease alongside retina scanning in people with type 2 diabetes: a cross-sectional study
    JO  - The Lancet Gastroenterology & Hepatology
    PY  - 2025
    VL  - 10
    IS  - 2
    SP  - 125
    EP  - 137
    DO  - 10.1016/s2468-1253(24)00313-3
    UR  - https://doi.org/10.1016/s2468-1253(24)00313-3
    ER  - 
    
  3. Issa G, Shang Y, Strandberg R, Hagström H, Wester A. Cause-specific mortality in 13,099 patients with metabolic dysfunction-associated steatotic liver disease in Sweden. Journal of Hepatology 2025;83(3):643-651. View →
    Cite
    @article{issa2025,
      author  = {Issa, G. and Shang, Y. and Strandberg, R. and Hagström, H. and Wester, A.},
      title   = {{Cause-specific mortality in 13,099 patients with metabolic dysfunction-associated steatotic liver disease in Sweden}},
      journal = {Journal of Hepatology},
      year    = {2025},
      volume  = {83},
      number  = {3},
      pages   = {643--651},
      doi     = {10.1016/j.jhep.2025.03.001}
    }
    
    TY  - JOUR
    AU  - Issa, G.
    AU  - Shang, Y.
    AU  - Strandberg, R.
    AU  - Hagström, H.
    AU  - Wester, A.
    TI  - Cause-specific mortality in 13,099 patients with metabolic dysfunction-associated steatotic liver disease in Sweden
    JO  - Journal of Hepatology
    PY  - 2025
    VL  - 83
    IS  - 3
    SP  - 643
    EP  - 651
    DO  - 10.1016/j.jhep.2025.03.001
    UR  - https://doi.org/10.1016/j.jhep.2025.03.001
    ER  - 
    
  4. Vaz J, Nasr P, Helander A, Shang Y, Wester A, Strandberg R, Grip ET, Hagström H. Phosphatidylethanol levels distinguish steatotic liver disease subgroups and are associated with risk of major liver outcomes. Journal of Hepatology 2025;83(5):1011-1022. View →
    Cite
    @article{vaz2025,
      author  = {Vaz, J. and Nasr, P. and Helander, A. and Shang, Y. and Wester, A. and Strandberg, R. and Grip, E. T. and Hagström, H.},
      title   = {{Phosphatidylethanol levels distinguish steatotic liver disease subgroups and are associated with risk of major liver outcomes}},
      journal = {Journal of Hepatology},
      year    = {2025},
      volume  = {83},
      number  = {5},
      pages   = {1011--1022},
      doi     = {10.1016/j.jhep.2025.04.019}
    }
    
    TY  - JOUR
    AU  - Vaz, J.
    AU  - Nasr, P.
    AU  - Helander, A.
    AU  - Shang, Y.
    AU  - Wester, A.
    AU  - Strandberg, R.
    AU  - Grip, E. T.
    AU  - Hagström, H.
    TI  - Phosphatidylethanol levels distinguish steatotic liver disease subgroups and are associated with risk of major liver outcomes
    JO  - Journal of Hepatology
    PY  - 2025
    VL  - 83
    IS  - 5
    SP  - 1011
    EP  - 1022
    DO  - 10.1016/j.jhep.2025.04.019
    UR  - https://doi.org/10.1016/j.jhep.2025.04.019
    ER  - 
    
  5. Boeckmans J, Widman L, Shang Y, Strandberg R, Wester A, Schattenberg JM, Hagström H. Risk of hepatic decompensation or HCC is similar in patients with ALD- and MASLD-cirrhosis: A population-based cohort study. European Journal of Internal Medicine 2025;134:104-113. View →
    Cite
    @article{boeckmans2025,
      author  = {Boeckmans, J. and Widman, L. and Shang, Y. and Strandberg, R. and Wester, A. and Schattenberg, J. M. and Hagström, H.},
      title   = {{Risk of hepatic decompensation or HCC is similar in patients with ALD- and MASLD-cirrhosis: A population-based cohort study}},
      journal = {European Journal of Internal Medicine},
      year    = {2025},
      volume  = {134},
      pages   = {104--113},
      doi     = {10.1016/j.ejim.2025.02.014}
    }
    
    TY  - JOUR
    AU  - Boeckmans, J.
    AU  - Widman, L.
    AU  - Shang, Y.
    AU  - Strandberg, R.
    AU  - Wester, A.
    AU  - Schattenberg, J. M.
    AU  - Hagström, H.
    TI  - Risk of hepatic decompensation or HCC is similar in patients with ALD- and MASLD-cirrhosis: A population-based cohort study
    JO  - European Journal of Internal Medicine
    PY  - 2025
    VL  - 134
    SP  - 104
    EP  - 113
    DO  - 10.1016/j.ejim.2025.02.014
    UR  - https://doi.org/10.1016/j.ejim.2025.02.014
    ER  - 
    
  6. Boeckmans J, Widman L, Strandberg R, Shang Y, Wester A, Hagström H. Temporal comorbidity patterns preceding MASLD-related major adverse liver outcomes: a nationwide population-based case–control study in Sweden. BMJ Public Health 2025;3(2):e003322. View →
    Cite
    @article{boeckmans2025b,
      author  = {Boeckmans, J. and Widman, L. and Strandberg, R. and Shang, Y. and Wester, A. and Hagström, H.},
      title   = {{Temporal comorbidity patterns preceding MASLD-related major adverse liver outcomes: a nationwide population-based case--control study in Sweden}},
      journal = {BMJ Public Health},
      year    = {2025},
      volume  = {3},
      number  = {2},
      pages   = {e003322},
      doi     = {10.1136/bmjph-2025-003322}
    }
    
    TY  - JOUR
    AU  - Boeckmans, J.
    AU  - Widman, L.
    AU  - Strandberg, R.
    AU  - Shang, Y.
    AU  - Wester, A.
    AU  - Hagström, H.
    TI  - Temporal comorbidity patterns preceding MASLD-related major adverse liver outcomes: a nationwide population-based case–control study in Sweden
    JO  - BMJ Public Health
    PY  - 2025
    VL  - 3
    IS  - 2
    SP  - e003322
    DO  - 10.1136/bmjph-2025-003322
    UR  - https://doi.org/10.1136/bmjph-2025-003322
    ER  - 
    

2024

  1. Strandberg R, Jepsen P, Hagström H. Developing and validating clinical prediction models in hepatology – An overview for clinicians. Journal of Hepatology 2024;81(1):149-162. View →
    Cite
    @article{strandberg2024,
      author  = {Strandberg, R. and Jepsen, P. and Hagström, H.},
      title   = {{Developing and validating clinical prediction models in hepatology -- An overview for clinicians}},
      journal = {Journal of Hepatology},
      year    = {2024},
      volume  = {81},
      number  = {1},
      pages   = {149--162},
      doi     = {10.1016/j.jhep.2024.03.030}
    }
    
    TY  - JOUR
    AU  - Strandberg, R.
    AU  - Jepsen, P.
    AU  - Hagström, H.
    TI  - Developing and validating clinical prediction models in hepatology – An overview for clinicians
    JO  - Journal of Hepatology
    PY  - 2024
    VL  - 81
    IS  - 1
    SP  - 149
    EP  - 162
    DO  - 10.1016/j.jhep.2024.03.030
    UR  - https://doi.org/10.1016/j.jhep.2024.03.030
    ER  - 
    
  2. Nasr P, Shang Y, Wester A, Strandberg R, Widman L, Lazarus JV, Hagström H. Socioeconomic factors associated with the presence of and outcomes in metabolic dysfunction‐associated steatotic liver disease. Liver International 2024;44(11):3050-3059. View →
    Cite
    @article{nasr2024,
      author  = {Nasr, P. and Shang, Y. and Wester, A. and Strandberg, R. and Widman, L. and Lazarus, J. V. and Hagström, H.},
      title   = {{Socioeconomic factors associated with the presence of and outcomes in metabolic dysfunction‐associated steatotic liver disease}},
      journal = {Liver International},
      year    = {2024},
      volume  = {44},
      number  = {11},
      pages   = {3050--3059},
      doi     = {10.1111/liv.16091}
    }
    
    TY  - JOUR
    AU  - Nasr, P.
    AU  - Shang, Y.
    AU  - Wester, A.
    AU  - Strandberg, R.
    AU  - Widman, L.
    AU  - Lazarus, J. V.
    AU  - Hagström, H.
    TI  - Socioeconomic factors associated with the presence of and outcomes in metabolic dysfunction‐associated steatotic liver disease
    JO  - Liver International
    PY  - 2024
    VL  - 44
    IS  - 11
    SP  - 3050
    EP  - 3059
    DO  - 10.1111/liv.16091
    UR  - https://doi.org/10.1111/liv.16091
    ER  - 
    
  3. Hegmar H, Wiggers T, Nasr P, Vessby J, Kechagias S, Nyhlin N, Marschall H, Borssén ÅD, Strandberg R, Karsdal M, Leeming DJ, Ekstedt M, Hagström H. Performance of novel collagen turnover biomarkers to detect increased liver stiffness in MASLD. Journal of Internal Medicine 2024;296(2):177-186. View →
    Cite
    @article{hegmar2024,
      author  = {Hegmar, H. and Wiggers, T. and Nasr, P. and Vessby, J. and Kechagias, S. and Nyhlin, N. and Marschall, H. and {Borssén ÅD} and Strandberg, R. and Karsdal, M. and Leeming, D. J. and Ekstedt, M. and Hagström, H.},
      title   = {{Performance of novel collagen turnover biomarkers to detect increased liver stiffness in MASLD}},
      journal = {Journal of Internal Medicine},
      year    = {2024},
      volume  = {296},
      number  = {2},
      pages   = {177--186},
      doi     = {10.1111/joim.13813}
    }
    
    TY  - JOUR
    AU  - Hegmar, H.
    AU  - Wiggers, T.
    AU  - Nasr, P.
    AU  - Vessby, J.
    AU  - Kechagias, S.
    AU  - Nyhlin, N.
    AU  - Marschall, H.
    AU  - Borssén ÅD
    AU  - Strandberg, R.
    AU  - Karsdal, M.
    AU  - Leeming, D. J.
    AU  - Ekstedt, M.
    AU  - Hagström, H.
    TI  - Performance of novel collagen turnover biomarkers to detect increased liver stiffness in MASLD
    JO  - Journal of Internal Medicine
    PY  - 2024
    VL  - 296
    IS  - 2
    SP  - 177
    EP  - 186
    DO  - 10.1111/joim.13813
    UR  - https://doi.org/10.1111/joim.13813
    ER  - 
    
  4. Nasr P, Wester A, Ekstedt M, Strandberg R, Kechagias S, Shang Y, Widman L, Hagström H. Misclassified Alcohol-related Liver Disease is Common in Presumed Metabolic Dysfunction-associated Steatotic Liver Disease and Highly Increases Risk for Future Cirrhosis. Clinical Gastroenterology and Hepatology 2024;22(5):1048-1057.e2. View →
    Cite
    @article{nasr2024b,
      author  = {Nasr, P. and Wester, A. and Ekstedt, M. and Strandberg, R. and Kechagias, S. and Shang, Y. and Widman, L. and Hagström, H.},
      title   = {{Misclassified Alcohol-related Liver Disease is Common in Presumed Metabolic Dysfunction-associated Steatotic Liver Disease and Highly Increases Risk for Future Cirrhosis}},
      journal = {Clinical Gastroenterology and Hepatology},
      year    = {2024},
      volume  = {22},
      number  = {5},
      pages   = {1048--1057.e2},
      doi     = {10.1016/j.cgh.2024.01.006}
    }
    
    TY  - JOUR
    AU  - Nasr, P.
    AU  - Wester, A.
    AU  - Ekstedt, M.
    AU  - Strandberg, R.
    AU  - Kechagias, S.
    AU  - Shang, Y.
    AU  - Widman, L.
    AU  - Hagström, H.
    TI  - Misclassified Alcohol-related Liver Disease is Common in Presumed Metabolic Dysfunction-associated Steatotic Liver Disease and Highly Increases Risk for Future Cirrhosis
    JO  - Clinical Gastroenterology and Hepatology
    PY  - 2024
    VL  - 22
    IS  - 5
    SP  - 1048-1057.e2
    DO  - 10.1016/j.cgh.2024.01.006
    UR  - https://doi.org/10.1016/j.cgh.2024.01.006
    ER  - 
    

2023

  1. Strandberg R, Czene K, Hall P, Humphreys K. Novel predictions of invasive breast cancer risk in mammography screening cohorts. Statistics in Medicine 2023;42(21):3816-3837. View →
    Cite
    @article{strandberg2023,
      author  = {Strandberg, R. and Czene, K. and Hall, P. and Humphreys, K.},
      title   = {{Novel predictions of invasive breast cancer risk in mammography screening cohorts}},
      journal = {Statistics in Medicine},
      year    = {2023},
      volume  = {42},
      number  = {21},
      pages   = {3816--3837},
      doi     = {10.1002/sim.9834}
    }
    
    TY  - JOUR
    AU  - Strandberg, R.
    AU  - Czene, K.
    AU  - Hall, P.
    AU  - Humphreys, K.
    TI  - Novel predictions of invasive breast cancer risk in mammography screening cohorts
    JO  - Statistics in Medicine
    PY  - 2023
    VL  - 42
    IS  - 21
    SP  - 3816
    EP  - 3837
    DO  - 10.1002/sim.9834
    UR  - https://doi.org/10.1002/sim.9834
    ER  - 
    
  2. Strandberg R, Abrahamsson L, Isheden G, Humphreys K. Tumour Growth Models of Breast Cancer for Evaluating Early Detection—A Summary and a Simulation Study. Cancers 2023;15(3):912. View →
    Cite
    @article{strandberg2023b,
      author  = {Strandberg, R. and Abrahamsson, L. and Isheden, G. and Humphreys, K.},
      title   = {{Tumour Growth Models of Breast Cancer for Evaluating Early Detection---A Summary and a Simulation Study}},
      journal = {Cancers},
      year    = {2023},
      volume  = {15},
      number  = {3},
      pages   = {912},
      doi     = {10.3390/cancers15030912}
    }
    
    TY  - JOUR
    AU  - Strandberg, R.
    AU  - Abrahamsson, L.
    AU  - Isheden, G.
    AU  - Humphreys, K.
    TI  - Tumour Growth Models of Breast Cancer for Evaluating Early Detection—A Summary and a Simulation Study
    JO  - Cancers
    PY  - 2023
    VL  - 15
    IS  - 3
    SP  - 912
    DO  - 10.3390/cancers15030912
    UR  - https://doi.org/10.3390/cancers15030912
    ER  - 
    
  3. Strandberg R, Illipse M, Czene K, Hall P, Humphreys K. Influence of mammographic density and compressed breast thickness on true mammographic sensitivity: a cohort study. Scientific Reports 2023;13(1):14194. View →
    Cite
    @article{strandberg2023c,
      author  = {Strandberg, R. and Illipse, M. and Czene, K. and Hall, P. and Humphreys, K.},
      title   = {{Influence of mammographic density and compressed breast thickness on true mammographic sensitivity: a cohort study}},
      journal = {Scientific Reports},
      year    = {2023},
      volume  = {13},
      number  = {1},
      pages   = {14194},
      doi     = {10.1038/s41598-023-41356-2}
    }
    
    TY  - JOUR
    AU  - Strandberg, R.
    AU  - Illipse, M.
    AU  - Czene, K.
    AU  - Hall, P.
    AU  - Humphreys, K.
    TI  - Influence of mammographic density and compressed breast thickness on true mammographic sensitivity: a cohort study
    JO  - Scientific Reports
    PY  - 2023
    VL  - 13
    IS  - 1
    SP  - 14194
    DO  - 10.1038/s41598-023-41356-2
    UR  - https://doi.org/10.1038/s41598-023-41356-2
    ER  - 
    
  4. Åberg F, Shang Y, Strandberg R, Wester A, Widman L, Hagström H. Four‐fold increased mortality rate in patients with Wilson's disease: A population‐based cohort study of 151 patients. United European Gastroenterology Journal 2023;11(9):852-860. View →
    Cite
    @article{aberg2023,
      author  = {Åberg, F. and Shang, Y. and Strandberg, R. and Wester, A. and Widman, L. and Hagström, H.},
      title   = {{Four‐fold increased mortality rate in patients with Wilson's disease: A population‐based cohort study of 151 patients}},
      journal = {United European Gastroenterology Journal},
      year    = {2023},
      volume  = {11},
      number  = {9},
      pages   = {852--860},
      doi     = {10.1002/ueg2.12452}
    }
    
    TY  - JOUR
    AU  - Åberg, F.
    AU  - Shang, Y.
    AU  - Strandberg, R.
    AU  - Wester, A.
    AU  - Widman, L.
    AU  - Hagström, H.
    TI  - Four‐fold increased mortality rate in patients with Wilson's disease: A population‐based cohort study of 151 patients
    JO  - United European Gastroenterology Journal
    PY  - 2023
    VL  - 11
    IS  - 9
    SP  - 852
    EP  - 860
    DO  - 10.1002/ueg2.12452
    UR  - https://doi.org/10.1002/ueg2.12452
    ER  - 
    

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