biostudies-literatureIloabuchi CNIMHD NIH HHSNational Institutes of HealthNIH HHS100312https://www.ebi.ac.uk/biostudies/studies/S-EPMC8916690biostudies-literatureUnknown30<h4>Objective</h4>To evaluate the association of low-value care with excess out-of-pocket expenditure among older adults diagnosed with incident breast, prostate, colorectal cancers, and Non-Hodgkin's Lymphoma.<h4>Methods</h4>We used a retrospective cohort study design with 12-month baseline and follow-up periods. We identified a cohort of older adults (age ≥ 66 years) diagnosed with breast, prostate, colorectal cancers, or Non-Hodgkin's lymphoma between January 2014 and December 2014. We assessed low-value care and patient out-of-pocket expenditure in the follow-up period. We identified relevant low-value services using ICD9/ICD10 and CPT/HCPCS codes from the linked health claims and patient out-of-pocket expenditure from Medicare claim files and expressed expenditure in 2016 USD.<h4>ResuJournal of cancer policyLow-value care and excess out-of-pocket expenditure among older adults with incident cancer - A machine learning approach.PMC8916690OT2 OD0325811OT2OD032581-01S21 MD0124725S21MD012472-05Iloabuchi CSambamoorthi ULeMasters TShen CLadani ADwibedi NfalseLow-value care and excess out-of-pocket expenditure among older adults with incident cancer - A machine learning approach.<h4>Objective</h4>To evaluate the association of low-value care with excess out-of-pocket expenditure among older adults diagnosed with incident breast, prostate, colorectal cancers, and Non-Hodgkin's Lymphoma.<h4>Methods</h4>We used a retrospective cohort study design with 12-month baseline and follow-up periods. We identified a cohort of older adults (age ≥ 66 years) diagnosed with breast, prostate, colorectal cancers, or Non-Hodgkin's lymphoma between January 2014 and December 2014. We assessed low-value care and patient out-of-pocket expenditure in the follow-up period. We identified relevant low-value services using ICD9/ICD10 and CPT/HCPCS codes from the linked health claims and patient out-of-pocket expenditure from Medicare claim files and expressed expenditure in 2016 USD.<h4>Resu2021-01-01T00:00:00Z2021 Dec2025-04-25T20:56:16.995Z2025-04-06T08:33:48.133ZS-EPMC89166903555980710.1016/j.jcpo.2021.100312