Cheryl J Isenhour1, Susan H Hariri2, Craig M Hales2, Claudia J Vellozzi2. 1. Prevention Branch, Division of Viral Hepatitis, Centers for Disease Control and Prevention, Atlanta, Georgia. Electronic address: xwz0@cdc.gov. 2. Prevention Branch, Division of Viral Hepatitis, Centers for Disease Control and Prevention, Atlanta, Georgia.
Abstract
INTRODUCTION: In the U.S., the burden of hepatitis C virus (HCV) infection and associated sequelae is substantial. HCV prevalence is highest among those born in 1945-1965 (Birth Cohort). Newly diagnosed infections are increasing in younger people concurrent with rising opioid/heroin use. The Centers for Disease Control and Prevention (2012) and U.S. Preventive Services Task Force (2013) recommend HCV testing for at-risk individuals and one-time testing for the Birth Cohort. This study describes national trends in HCV antibody testing from 2005 to 2014. METHODS: Using commercial and Medicare supplemental insurance claims data, people were identified who were continuously enrolled for ≥2 years during the 10-year study period, without prior HCV diagnosis (N=190,926,299). Current Procedural Terminology codes identified 3,382,267 unique antibody tests. Temporal trends in annual testing were evaluated using the Cochran-Armitage test, and primary ICD-9-CM diagnosis codes used at the time of testing were described. Data were analyzed in 2015 and 2016. RESULTS: Testing was highest among those aged 18-29 and 30-39 years, increasing by 123% (1.66% to 3.71%) and 108% (1.99% to 4.13%), respectively (p<0.0001). Among the Birth Cohort, there was a 136% increase in HCV antibody testing from 2005 to 2014, with a 91% increase from 1.71% in 2011 to 3.26% 2014 (p<0.0001). CONCLUSIONS: Although the increased HCV antibody testing observed among the Birth Cohort from 2011 to 2014 likely reflects early adoption of updated national testing recommendations, overall testing remains low in this commercially insured population, indicating a clear need for improvement. Published by Elsevier Inc.
INTRODUCTION: In the U.S., the burden of hepatitis C virus (HCV) infection and associated sequelae is substantial. HCV prevalence is highest among those born in 1945-1965 (Birth Cohort). Newly diagnosed infections are increasing in younger people concurrent with rising opioid/heroin use. The Centers for Disease Control and Prevention (2012) and U.S. Preventive Services Task Force (2013) recommend HCV testing for at-risk individuals and one-time testing for the Birth Cohort. This study describes national trends in HCV antibody testing from 2005 to 2014. METHODS: Using commercial and Medicare supplemental insurance claims data, people were identified who were continuously enrolled for ≥2 years during the 10-year study period, without prior HCV diagnosis (N=190,926,299). Current Procedural Terminology codes identified 3,382,267 unique antibody tests. Temporal trends in annual testing were evaluated using the Cochran-Armitage test, and primary ICD-9-CM diagnosis codes used at the time of testing were described. Data were analyzed in 2015 and 2016. RESULTS: Testing was highest among those aged 18-29 and 30-39 years, increasing by 123% (1.66% to 3.71%) and 108% (1.99% to 4.13%), respectively (p<0.0001). Among the Birth Cohort, there was a 136% increase in HCV antibody testing from 2005 to 2014, with a 91% increase from 1.71% in 2011 to 3.26% 2014 (p<0.0001). CONCLUSIONS: Although the increased HCV antibody testing observed among the Birth Cohort from 2011 to 2014 likely reflects early adoption of updated national testing recommendations, overall testing remains low in this commercially insured population, indicating a clear need for improvement. Published by Elsevier Inc.
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