Selene Leon-Reyes1, Juliane Schäfer1, Mathias Früh2, Matthias Schwenkglenks3, Oliver Reich2, Kurt Schmidlin4, Cornelia Staehelin5, Manuel Battegay6, Matthias Cavassini7, Barbara Hasse8, Enos Bernasconi9, Alexandra Calmy10, Matthias Hoffmann11, Franziska Schoeni-Affolter12, Hongwei Zhao13, Heiner C Bucher1,6. 1. Basel Institute for Clinical Epidemiology & Biostatistics, University Hospital Basel and University of Basel. 2. Department of Health Sciences, Helsana-Group Zurich, Switzerland. 3. Institute of Pharmaceutical Medicine (ECPM), University of Basel, Switzerland. 4. Institute of Social and Preventive Medicine, University of Bern, Switzerland. 5. Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Switzerland. 6. Division of Infectious Diseases and Hospital Epidemiology University Hospital Basel and University of Basel, Switzerland. 7. Division of Infectious Diseases, University Hospital Lausanne (CHUV), Switzerland. 8. Division of Infectious Diseases and Hospital Hygiene, University Hospital and University of Zurich, Switzerland. 9. Division of Infectious Diseases, Regional Hospital Lugano, Switzerland. 10. Division of Infectious Diseases, University Hospital Geneva, Switzerland. 11. Division of Infectious Diseases, Kantonsspital St. Gallen, Switzerland. 12. Swiss HIV Cohort Study Data Center, University Hospital and University of Zurich, Switzerland. 13. Department of Epidemiology and Biostatistics, School of Public Health, Texas A&M University, College Station.
Abstract
BACKGROUND: Comprehensive and representative data on resource use are critical for health policy decision making but often lacking for human immunodeficiency virus (HIV) infection. Privacy-preserving probabilistic record linkage of claim and cohort study data may overcome these limitations. METHODS: Encrypted dates of birth, sex, study center, and antiretroviral therapy (ART) from the Swiss HIV Cohort Study (SHCS) records for 2012 and 2013 were linked by privacy-preserving probabilistic record linkage with claim data from the largest health insurer covering 15% of the Swiss residential population. We modeled predictors for mean annual costs adjusting for censoring and grouped patients by cluster analysis into 3 risk groups for resource use. RESULTS: The matched subsample of 1196 patients from 9326 SHCS and 2355 claim records was representative for all SHCS patients receiving ART. The corrected mean (standard error) total costs in 2012 and 2013 were $30462 ($582) and $30965 ($629) and mainly accrued in ambulatory care for ART (70% of mean costs). The low-risk group for resource use had mean (standard error) annual costs of $26772 ($536) and $26132 ($589) in 2012 and 2013. In the moderate- and high-risk groups, annual costs for 2012 and 2013 were higher by $3526 (95% confidence interval, $1907-$5144) (13%) and $4327 ($2662-$5992) (17%) and $14026 ($8763-$19289) (52%) and $13567 ($8844-$18288) (52%), respectively. CONCLUSIONS: In a representative subsample of patients from linkage of SHCS and claim data, ART was the major cost factor, but patient profiling enabled identification of factors related to higher resource use.
BACKGROUND: Comprehensive and representative data on resource use are critical for health policy decision making but often lacking for human immunodeficiency virus (HIV) infection. Privacy-preserving probabilistic record linkage of claim and cohort study data may overcome these limitations. METHODS: Encrypted dates of birth, sex, study center, and antiretroviral therapy (ART) from the Swiss HIV Cohort Study (SHCS) records for 2012 and 2013 were linked by privacy-preserving probabilistic record linkage with claim data from the largest health insurer covering 15% of the Swiss residential population. We modeled predictors for mean annual costs adjusting for censoring and grouped patients by cluster analysis into 3 risk groups for resource use. RESULTS: The matched subsample of 1196 patients from 9326 SHCS and 2355 claim records was representative for all SHCS patients receiving ART. The corrected mean (standard error) total costs in 2012 and 2013 were $30462 ($582) and $30965 ($629) and mainly accrued in ambulatory care for ART (70% of mean costs). The low-risk group for resource use had mean (standard error) annual costs of $26772 ($536) and $26132 ($589) in 2012 and 2013. In the moderate- and high-risk groups, annual costs for 2012 and 2013 were higher by $3526 (95% confidence interval, $1907-$5144) (13%) and $4327 ($2662-$5992) (17%) and $14026 ($8763-$19289) (52%) and $13567 ($8844-$18288) (52%), respectively. CONCLUSIONS: In a representative subsample of patients from linkage of SHCS and claim data, ART was the major cost factor, but patient profiling enabled identification of factors related to higher resource use.
Authors: Sophia M Rein; Colette J Smith; Clinton Chaloner; Adam Stafford; Alison J Rodger; Margaret A Johnson; Jeffrey McDonnell; Fiona Burns; Sara Madge; Alec Miners; Lorraine Sherr; Simon Collins; Andrew Speakman; Andrew N Phillips; Fiona C Lampe Journal: EClinicalMedicine Date: 2020-12-01