Pia Kjær Kristensen

Research output

Research output per year 2012 2018 2019 2020 2024

• 38 Journal article
• 25 Conference abstract for conference
• 13 Poster
• 2 Review
• 2 More
  • 1 Ph.D. thesis
  • 1 Editorial

Research output per year

Research output per year

Search results

• 2024

  Characteristics of constipation screening and assessment tools: a scoping review protocol

  Odgaard, L., Rasmussen, A. A., Feo, R. & Kristensen, P. K., Mar 2024, In: BMJ Open. 14, 3, 4 p., e076978.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Constipation 100%
  • Practice Guideline 11%
  • Health Care Personnel 11%
  • Healthcare System 11%
  • Nursing Care 11%

• Hip displacements and correctable scoliosis were prevalent in children with cerebral palsy registered in a Danish follow-up programme from 2010 to 2020

  Krarup, L. H., Kristensen, P. K., Stisen, M. B., Nordbye-Nielsen, K. & Mechlenburg, I., Feb 2024, In: Acta Paediatrica. 113, 2, p. 336-343 8 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  • Standing Frame 100%

• Preadmission morbidity and healthcare utilization among older adults with potentially avoidable hospitalizations: a Danish case-control study

  Schrøder, C. K., Kristiansen, E. B., Flarup, L., Christiansen, C. F., Thomsen, R. W. & Kristensen, P. K., Feb 2024, In: European Geriatric Medicine. 15, 1, p. 127-138 12 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Prevalence 100%
  • Case-Control Study 100%
  • Drug Therapy 37%
  • Infection 25%
  • Chronic Kidney Disease 25%

• Systematic review of multivariable prognostic models for outcomes at least 30 days after hip fracture finds 18 mortality models but no nonmortality models warranting validation

  Walsh, M. E., Kristensen, P. K., Hjelholt, T. J., Hurson, C., Walsh, C., Ferris, H., Crozier-Shaw, G., Keohane, D., Geary, E., O'Halloran, A., Merriman, N. A. & Blake, C., Sept 2024, In: Journal of Clinical Epidemiology. 173, 111439.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Review › Research › peer-review

  Open Access

  • Systematic Review 100%
  • Mortality 100%
  • Hip Fracture 100%
  • Prognostic Model 100%
  • Mortality Model 100%

• Variation in quality of care between hospitals: how to identify learning opportunities

  Bottle, A. & Kristensen, P. K., 19 Jun 2024, In: BMJ Quality & Safety. 33, 7, p. 413-415 3 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Editorial › peer-review
• 2023

  Are hip fracture patients with high or low body mass index at higher risk of missed care? A cohort study

  Pedersen, N. S. A., Mechlenburg, I. & Kristensen, P. K., Jul 2023, In: Nursing Open. 10, 7, p. 4452-4460 9 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Cohort Analysis 100%
  • Body Mass Index 100%
  • Hip Fracture 100%
  • Rehabilitation Engineering 40%
  • Population Research 20%

• Association of anticholinergic drug use with postoperative mortality among patients with hip fracture. A nationwide cohort study

  Birkmose, A. L. L., Kristensen, P. K., Madsen, M., Pedersen, A. B. & Hjelholt, T. J., Oct 2023, In: Archives of Gerontology and Geriatrics. 113, p. 105017 105017.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  File

  • Cohort Analysis 100%
  • Drug Use 100%
  • Hip Fracture 100%
  • Surgical Mortality 100%
  • Parasympatholytic 100%
  6 Downloads (Pure)

• Current Trends in Comorbidity Prevalence and Associated Mortality in a Population-Based Cohort of Hip Fracture Patients in Denmark

  Kristensen, P. K., Hjelholt, T. J., Madsen, M. & Pedersen, A. B., Jul 2023, In: Clinical epidemiology. 15, p. 839-853 15 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Prevalence 100%
  • Comorbidity 100%
  • Hip Fracture 100%
  • Disease 21%
  • Antiplatelet 7%

• Nursing representatives in clinical quality databases and the presence of nursing-sensitive indicators of fundamental nursing care

  Mainz, H., Odgaard, L. & Kristensen, P. K., Mar 2023, In: Journal of Advanced Nursing. 79, 3, p. 1129-1138

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  File

  • Nursing Care 100%
  • Prevalence 100%
  • Treatment Outcome 50%
  • Cross-Sectional Study 50%
  • Nursing Intervention 50%
  58 Downloads (Pure)

• Reference Values for Daily Physical Activity Measured with Accelerometers in a Danish Background Population between 18 and 80 Years of Age

  Schrøder, C. K., Tønning, L. U., Tjur, M., Kristensen, P. K. & Mechlenburg, I., Feb 2023, In: Applied Sciences (Switzerland). 13, 3, 9 p., 1443.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Reference Value 100%
  • Accelerometer 100%
  • Physical Activity 100%
  • Clinical Practice 25%
  • Cross-Sectional Study 25%

• Using Explainable Artificial Intelligence to Predict Potentially Preventable Hospitalizations: A Population-Based Cohort Study in Denmark

  Riis, A. H., Kristensen, P. K., Lauritsen, S. M., Thiesson, B. & Jørgensen, M. J., Apr 2023, In: Medical Care. 61, 4, p. 226-236 11 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Antibiotics 100%
  • Health Care 100%
  • Cohort Analysis 100%
  • Health Service 100%
  • Cross-Validation 100%
• 2022

  Comorbidity and Quality of In-Hospital Care for Hip Fracture Patients

  Schrøder, C. K., Hjelholt, T. J., Møller, H., Madsen, M., Pedersen, A. B. & Kristensen, P. K., Apr 2022, In: Journal of the American Medical Directors Association. 23, 4, p. 671-677.e4

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  File

  • Hospital Care 100%
  • Comorbidity 100%
  • Hip Fracture 100%
  • Mobilization 25%
  • Drug Therapy 12%
  1 Citation (Scopus)

  22 Downloads (Pure)

• Geographic variation in hip fracture surgery rate, care quality and outcomes: a comparison between national registries in Ireland and Denmark

  Walsh, M. E., Sorensen, J., Blake, C., Johnsen, S. P. & Kristensen, P. K., Dec 2022, In: Archives of Osteoporosis. 17, 1, 128.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  • Hip Fracture 100%
  • Total Hip Arthroplasty 33%
  • Nutritional Assessment 22%
  • Hemiarthroplasty 11%

• Patient-reported outcomes as hospital performance measures: the challenge of confounding and how to handle it

  Kristensen, P. K. & Johnsen, S. P., Apr 2022, In: International Journal for Quality in Health Care. 34, p. II59-II64

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Review › Research › peer-review

  • Confounding 100%
  • Performance Measure 100%
  • Methodological Issue 33%
  • Multilevel Analysis 33%
  • Confounders 16%

• Prediction Ability of Charlson, Elixhauser, and Rx-Risk Comorbidity Indices for Mortality in Patients with Hip Fracture. A Danish Population-Based Cohort Study from 2014 – 2018

  Vesterager, J. D., Madsen, M., Hjelholt, T. J., Kristensen, P. K. & Pedersen, A. B., 2022, In: Clinical Epidemiology. 14, p. 275-287 13 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Comorbidity 100%
  • Hip 100%
  • Elixhauser Comorbidity Index 50%
• 2021

  Ankle contractures are frequent among children with cerebral palsy and associated with lower gross motor function and degree of spasticity

  Krarup, L. H., Kristensen, P. K., Strand, L., Bredtoft, S. L., Mechlenburg, I. & Nordbye-Nielsen, K., Jul 2021, In: Acta paediatrica (Oslo, Norway : 1992). 110, 7, p. 2171-2178 8 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  • Spastic Diplegia 100%
  • Motor Performance 100%
  • Spasticity 100%
  • Contracture 100%
  • Prevalence 36%

• Hospital variation in the risk of infection after hip fracture surgery: a population-based cohort study including 29,598 patients from 2012–2017

  Vesterager, J. D., Kristensen, P. K., Petersen, I. & Pedersen, A. B., 2021, In: Acta Orthopaedica. 92, 2, p. 215-221 7 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  • Infection 100%
  • Cohort Analysis 100%
  • Hip Fracture 100%
  • Cohort Study 100%
  • Postoperative Infection 21%

• Patient-related healthcare disparities in the quality of acute hip fracture care: a 10-year nationwide population-based cohort study

  Kristensen, P. K., Falstie-Jensen, A. M., Madsen, M. & Johnsen, S. P., Dec 2021, In: BMJ Open. 11, 12, e051424.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Cohort Analysis 100%
  • Hip Fracture 100%
  • Drug Therapy 50%
  • Logistic Regression Analysis 25%
  • Fall Prevention 25%
• 2020

  Cohort profile: CROSS-TRACKS: a population-based open cohort across healthcare sectors in Denmark

  Riis, A. H., Kristensen, P. K., Petersen, M. G., Ebdrup, N. H., Lauritsen, S. M. & Jørgensen, M. J., Oct 2020, In: BMJ Open. 10, 10, 11 p., e039996.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Primary Health Care 100%
  • Health Behavior 50%
  • Cohort Effect 50%
  • Body Mass Index 50%
  • Alcohol Consumption 50%

• Disentangling the contribution of hospitals and municipalities for understanding patient level differences in one-year mortality risk after hip-fracture: A cross-classified multilevel analysis in Sweden

  Kristensen, P. K., Perez-Vicente, R., Leckie, G., Johnsen, S. P. & Merlo, J., Jun 2020, In: PLOS ONE. 15, 6, e0234041.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Hip Fracture 100%
  • Multilevel Analysis 100%
  • Multi-Level Modeling 100%
  • Hip 100%
  • Partition Coefficient 100%

• Empowering knowledge generation through international data network: The IMeCCHI-DATANETWORK

  Otero Varela, L., Le Pogam, M. A., Metcalfe, A., Kristensen, P. K., Hider, P., Patel, A., Kim, H., Carlini, E., Perego, R. & Gini, R., Jan 2020, In: International Journal of Population Data Science. 5, 1, 05.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Computer Network 100%
  • Knowledge Generation 100%
  • Health Information 100%
  • Data Model 66%
  • Research Question 33%

• Hospital variation in the incidence of post-operative infection among hip fracture patients

  Vesterager, J. D., Kristensen, P. K., Petersen, I. & Pedersen, A. B., 2020.

  Research output: Contribution to conference › Poster › Research › peer-review

• Hospital variation in the incidence of post-operative infection among hip fracture patients

  Vesterager, J. D., Kristensen, P. K., Petersen, I. & Pedersen, A. B., 2020.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• Patient-related disparities in quality of acute hip fracture care - a 10-year nationwide population-based cohort study

  Kristensen, P. K., Falstie-Jensen, A. M. & Johnsen, S. P., 2020.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• Patient-related inequalities in quality of care among heart failure patients in Denmark

  Kristensen, P. K., Falstie-Jensen, A. M. & Johnsen, S. P., 2020.

  Research output: Contribution to conference › Poster › Research › peer-review

• Splinting versus extension-block pinning of bony mallet finger: a randomized clinical trial

  Thillemann, J. K., Thillemann, T. M., Kristensen, P. K., Foldager-Jensen, A. D. & Munk, B., Jul 2020, In: Journal of Hand Surgery: European Volume. 45, 6, p. 574-581 8 p., 1753193420917567.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  • Interphalangeal Joint 100%

• The danish multidisciplinary hip fracture registry 13-year results from a population-based cohort of hip fracture patients

  Kristensen, P. K., Röck, N. D., Christensen, H. C. & Pedersen, A. B., 1 Jan 2020, In: Clinical epidemiology. 12, p. 9-21 13 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Hip Fracture 100%
  • Nursing Care 16%
  • Rehabilitation Engineering 16%
  • Reoperation 16%
  • Hospital Department 8%

• The Positive Predictive Value of Hip Fracture Diagnoses and Surgical Procedure Codes in the Danish Multidisciplinary Hip Fracture Registry and the Danish National Patient Registry

  Hjelholt, T. J., Edwards, N. M., Vesterager, J. D., Kristensen, P. K. & Pedersen, A. B., 2020, In: Clinical Epidemiology. 12, p. 123-131 8 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Prosthetic Replacement 100%

• Use Of Anti-Osteoporotic Medication After Hip Fracture: Could We Do Better?

  Kristensen, P. K., Pedersen, A. B., Ehrenstein, V. & Shetty, N., 2020.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
• 2019

  CROSS-TRACKS - A Population-Based Danish Cross-Sectorial Cohort

  Hammerich Riis, A., Kristensen, P. K., Petersen, M. G., Ebdrup, N. H., Lauritsen, S. M. & Jørgensen, M. J., 27 Nov 2019.

  Research output: Contribution to conference › Poster › Research › peer-review

• Decreasing trends, and geographical variation in outpatient antibiotic use: A population-based study in Central Denmark

  Kristensen, P. K., Johnsen, S. P. & Thomsen, R. W., Apr 2019, In: BMC Infectious Diseases. 19, 337.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Antibiotics 100%
  • Outpatient 100%
  • Antibiotic Agent 88%
  • Broad-Spectrum Antibiotic 41%
  • Antimicrobial Resistance 11%

• High quality of care did not imply increased hospital spending- nationwide cohort study among hip fracture patients

  Kristensen, P. K., Søgaard, R., Thillemann, T. M., Søballe, K. & Johnsen, S. P., Aug 2019, In: International Journal for Quality in Health Care. 31, 7, p. 22-29 8 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  • Cohort Analysis 100%
  • Hip Fracture 100%
  • Hospital Costs 100%
  • Hospital Cost 66%
  • Drug Therapy 66%

• Hip fracture care and clinical outcomes in Denmark - The Danish Multidisciplinary Hip Fracture Registry

  Kristensen, P. K., 24 May 2019.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• Hospital differences in mortality rates after hip fracture surgery in Denmark

  Kristensen, P. K., Merlo, J., Ghith, N., Leckie, G. & Johnsen, S. P., Jul 2019, In: Clinical epidemiology. 11, p. 605-614 10 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  Open Access

  • Mortality Rate 100%
  • Hip Fracture 100%
  • Odds Ratio 40%
  • Partition Coefficient 40%
  • Multilevel Analysis 20%

• Hospital differences in mortality rates after hip fracture surgery in Denmark – A multilevel approach for evaluating variation in 30-day mortality after hip fracture in a population-based cohort study

  Kristensen, P. K., Ghith, N., Leckie, G., Merlo, J. & Johnsen, S. P., 25 Oct 2019.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• Hospital differences in mortality rates after hip fracture surgery in Denmark – A multilevel approach for evaluating variation in 30-day mortality after hip fracture in a population-based cohort study

  Kristensen, P. K., Leckie, G., Merlo, J., Ghith, N. & Johnsen, S. P., 27 Aug 2019.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• Hospital variation in the incidence of post-operative infection among hip fracture patients

  Vesterager, J. D., Kristensen, P. K. & Petersen, I., 27 Oct 2019.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• Hospital variation in the incidence of post-operative infection among hip fracture patients

  Vesterager, J. D., Kristensen, P. K., Petersen, I. & Pedersen, A. B., 25 Oct 2019.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• Patient-related disparities in quality of care and its impact on mortality among acute stroke patients

  Kristensen, P. K., Falstie-Jensen, A. M. & Johnsen, S. P., 20 Oct 2019.

  Research output: Contribution to conference › Poster › Research › peer-review

• Patient-related inequalities in quality of care among heart failure patients in

  Kristensen, P. K., Falstie-Jensen, A. M. & Johnsen, S. P., 21 Oct 2019.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• Patient-related inequalities in quality of care among heart failure patients in Denmark

  Kristensen, P. K., Falstie-Jensen, A. M. & Johnsen, S. P., 20 Oct 2019.

  Research output: Contribution to conference › Poster › Research › peer-review

• Patient-related inequalities in quality of care among heart failure patients in Denmark

  Kristensen, P. K., Falstie-Jensen, A. M. & Johnsen, S. P., 1 Oct 2019.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• The impact of patient-related disparities in quality of care on clinical outcomes among patients with incident heart failure

  Johnsen, S. P., Falstie-Jensen, A. M. & Kristensen, P. K., 2 Oct 2019.

  Research output: Contribution to conference › Poster › Research › peer-review

• The impact of patient-related disparities in quality of care on clinical outcomes among patients with incident heart failure

  Kristensen, P. K., Falstie-Jensen, A. M. & Johnsen, S. P., 20 Oct 2019.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• The impact of patient-related disparities in quality of care on clinical outcomes among patients with incident heart failure

  Johnsen, S. P., Falstie-Jensen, A. M. & Kristensen, P. K., 20 Oct 2019.

  Research output: Contribution to conference › Poster › Research › peer-review

• Use of anti-osteoporosis medication dispensing by patients with hip fracture: could we do better?

  Kristensen, P. K., Ehrenstein, V., Shetty, N. & Pedersen, A. B., Sept 2019, In: Osteoporosis International. 30, 9, p. 1817-1825 9 p.

  Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

  • Hip Fracture 100%
  • Prevalence 17%
  • Comorbidity 17%
  • Bisphosphonic Acid Derivative 5%
  • Denosumab 5%
• 2018

  Geographical variation in acute readmission among hip fracture patients in Denmark

  Kristensen, P. K. & Johnsen, S. P., 30 Aug 2018.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• Mortality after hip fracture: How much of the variation is attributable to the hospital- and municipality level? – A nationwide population-based cohort study

  Kristensen, P. K. & Johnsen, S. P., 27 Sept 2018.

  Research output: Contribution to conference › Poster › Research › peer-review

• Mortality after hip fracture: How much of the variation is attributable to the hospital- and municipality level? – A nationwide population-based cohort study

  Kristensen, P. K. & Johnsen, S. P., 26 Sept 2018.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

• Trends, disparities and geographical variation in outpatient antibiotic consumption: A population-based study

  Kristensen, P. K., Johnsen, S. P. & Thomsen, R. W., 27 Sept 2018.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review