Comparing errors in Medicaid reporting across surveys: evidence to date

doi:10.1111/j.1475-6773.2012.01446.x

Comparative Study

. 2013 Apr;48(2 Pt 1):652-64.

doi: 10.1111/j.1475-6773.2012.01446.x. Epub 2012 Jul 20.

Comparing errors in Medicaid reporting across surveys: evidence to date

Kathleen T Call¹, Michael E Davern, Jacob A Klerman, Victoria Lynch

Affiliations

PMID: 22816493
PMCID: PMC3626347
DOI: 10.1111/j.1475-6773.2012.01446.x

Comparative Study

Comparing errors in Medicaid reporting across surveys: evidence to date

Kathleen T Call et al. Health Serv Res. 2013 Apr.

. 2013 Apr;48(2 Pt 1):652-64.

doi: 10.1111/j.1475-6773.2012.01446.x. Epub 2012 Jul 20.

Authors

Kathleen T Call¹, Michael E Davern, Jacob A Klerman, Victoria Lynch

Affiliation

¹ SHADAC, University of Minnesota, 2221 University Ave SE, Suite 345, Minneapolis, MN 55414, USA. callx001@umn.edu

PMID: 22816493
PMCID: PMC3626347
DOI: 10.1111/j.1475-6773.2012.01446.x

Abstract

Objective: To synthesize evidence on the accuracy of Medicaid reporting across state and federal surveys.

Data sources: All available validation studies.

Study design: Compare results from existing research to understand variation in reporting across surveys.

Data collection methods: Synthesize all available studies validating survey reports of Medicaid coverage.

Principal findings: Across all surveys, reporting some type of insurance coverage is better than reporting Medicaid specifically. Therefore, estimates of uninsurance are less biased than estimates of specific sources of coverage. The CPS stands out as being particularly inaccurate.

Conclusions: Measuring health insurance coverage is prone to some level of error, yet survey overstatements of uninsurance are modest in most surveys. Accounting for all forms of bias is complex. Researchers should consider adjusting estimates of Medicaid and uninsurance in surveys prone to high levels of misreporting.

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References

1. Blumberg SJ, Cynamon ML. “Misreporting Medicaid Enrollment: Results of Three Studies Linking Telephone Surveys to State Administrative Records”. Hyattsville, MD: Department of Health and Human Services, Centers for Disease Control and Prevention; 1999. [accessed on June 22, 2012]. Seventh Conference on Health Survey Research Methods. DHHS Publication No. (PHS) 01-1013. Available at http://www.cdc.gov/nchs/data/misc/conf07.pdf.
1. Call KT, Davern ME, Blewett LA. “Estimates of Health Insurance Coverage: Comparing State Surveys with the Current Population Survey”. Health Affairs. 2007;26(1):269–78. - PubMed
1. Call KT, Davidson G, Davern ME, Brown ER, Kincheloe J, Nelson JG. “Accuracy of Self-Reported Health Insurance Coverage among Medicaid Enrollees”. Inquiry. 2008a;45:438–56. - PubMed
1. Call KT, Davidson G, Davern ME, Nyman R. “Medicaid Undercount and Bias to Estimates of Uninsurance: New Estimates and Existing Evidence”. Health Services Research. 2008b;43:901–14. - PMC - PubMed
1. Cantor JC, Monheit AC, Brownlee S, Schneider C. “The Adequacy of Household Survey Data for Evaluating the Nongroup Health Insurance Market”. Health Services Research. 2007;42(4):1739–57. - PMC - PubMed

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[1] Blumberg SJ, Cynamon ML. “Misreporting Medicaid Enrollment: Results of Three Studies Linking Telephone Surveys to State Administrative Records”. Hyattsville, MD: Department of Health and Human Services, Centers for Disease Control and Prevention; 1999. [accessed on June 22, 2012]. Seventh Conference on Health Survey Research Methods. DHHS Publication No. (PHS) 01-1013. Available at http://www.cdc.gov/nchs/data/misc/conf07.pdf.

[2] Blumberg SJ, Cynamon ML. “Misreporting Medicaid Enrollment: Results of Three Studies Linking Telephone Surveys to State Administrative Records”. Hyattsville, MD: Department of Health and Human Services, Centers for Disease Control and Prevention; 1999. [accessed on June 22, 2012]. Seventh Conference on Health Survey Research Methods. DHHS Publication No. (PHS) 01-1013. Available at http://www.cdc.gov/nchs/data/misc/conf07.pdf.

[3] Call KT, Davern ME, Blewett LA. “Estimates of Health Insurance Coverage: Comparing State Surveys with the Current Population Survey”. Health Affairs. 2007;26(1):269–78. - PubMed

[4] Call KT, Davern ME, Blewett LA. “Estimates of Health Insurance Coverage: Comparing State Surveys with the Current Population Survey”. Health Affairs. 2007;26(1):269–78. - PubMed

[5] Call KT, Davidson G, Davern ME, Brown ER, Kincheloe J, Nelson JG. “Accuracy of Self-Reported Health Insurance Coverage among Medicaid Enrollees”. Inquiry. 2008a;45:438–56. - PubMed

[6] Call KT, Davidson G, Davern ME, Brown ER, Kincheloe J, Nelson JG. “Accuracy of Self-Reported Health Insurance Coverage among Medicaid Enrollees”. Inquiry. 2008a;45:438–56. - PubMed

[7] Call KT, Davidson G, Davern ME, Nyman R. “Medicaid Undercount and Bias to Estimates of Uninsurance: New Estimates and Existing Evidence”. Health Services Research. 2008b;43:901–14. - PMC - PubMed

[8] Call KT, Davidson G, Davern ME, Nyman R. “Medicaid Undercount and Bias to Estimates of Uninsurance: New Estimates and Existing Evidence”. Health Services Research. 2008b;43:901–14. - PMC - PubMed

[9] Cantor JC, Monheit AC, Brownlee S, Schneider C. “The Adequacy of Household Survey Data for Evaluating the Nongroup Health Insurance Market”. Health Services Research. 2007;42(4):1739–57. - PMC - PubMed

[10] Cantor JC, Monheit AC, Brownlee S, Schneider C. “The Adequacy of Household Survey Data for Evaluating the Nongroup Health Insurance Market”. Health Services Research. 2007;42(4):1739–57. - PMC - PubMed

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Comparing errors in Medicaid reporting across surveys: evidence to date

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Comparing errors in Medicaid reporting across surveys: evidence to date

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