The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.
The impact of health care reform on hospital and preventive care: Evidence from Massachusetts
Open accessAbstract
In April 2006, Massachusetts passed legislation aimed at achieving near-universal health insurance coverage. The key features of this legislation were a model for national health reform, passed in March 2010. The reform gives us a novel opportunity to examine the impact of expansion to near-universal coverage state-wide. Among hospital discharges in Massachusetts, we find that the reform decreased uninsurance by 36% relative to its initial level and to other states. Reform affected utilization by decreasing length of stay, the number of inpatient admissions originating from the emergency room, and preventable admissions. At the same time, hospital cost growth did not increase.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Charlson, M. E., Pompei, P., Ales, K. L., & MacKenzie, C. R. (1987) · Journal of Chronic Diseases · doi:10.1016/0021-9681(87)90171-8 · Cited by 49,742
Coding algorithms for defining comorbidities in ICD-9-CM and ICD-10 administrative data
Quan, H., Sundararajan, V., Halfon, P., Fong, A., Burnand, B., Luthi, J.-C., Saunders, L. D., Beck, C. A., Feasby, T. E., & Ghali, W. A. (2005) · Medical Care · doi:10.1097/01.mlr.0000182534.19832.83 · Cited by 10,669
How Much Should We Trust Differences-in-Differences Estimates?
Bertrand, M., Duflo, E., & Mullainathan, S. (2004) · The Quarterly Journal of Economics · doi:10.1162/003355304772839588 · Cited by 10,641
Health insurance and the demand for medical care: evidence from a randomized experiment.
Manning, W. G., Newhouse, J. P., Duan, N., Keeler, E. B., Leibowitz, A. A., & Marquis, M. S. (1987) · PubMed · Cited by 2,045
The Oregon Health Insurance Experiment: Evidence from the First Year*
Finkelstein, A., Taubman, S., Wright, B., Bernstein, M., Gruber, J., Newhouse, J. P., Allen, H., Baicker, K., & Oregon Health Study Group (2012) · The Quarterly Journal of Economics · doi:10.1093/qje/qjs020 · Cited by 1,657
Health Insurance Eligibility, Utilization of Medical Care, and Child Health
Currie, J., & Gruber, J. (1996) · The Quarterly Journal of Economics · doi:10.2307/2946684 · Cited by 802
Does Public Insurance Crowd out Private Insurance?
Cutler, D. M., & Gruber, J. (1996) · The Quarterly Journal of Economics · doi:10.2307/2946683 · Cited by 772
The Impact of Nearly Universal Insurance Coverage on Health Care Utilization: Evidence from Medicare
Card, D., Dobkin, C., & Maestas, N. (2008) · American Economic Review · doi:10.1257/aer.98.5.2242 · Cited by 716
The Aggregate Effects of Health Insurance: Evidence from the Introduction of Medicare
Finkelstein, A. (2007) · The Quarterly Journal of Economics · doi:10.1162/qjec.122.1.1 · Cited by 526
Chernew, M. E., Rosen, A. B., & Fendrick, A. M. (2007) · Health Affairs · doi:10.1377/hlthaff.26.2.w195 · Cited by 344
Cited by
Designing Difference in Difference Studies: Best Practices for Public Health Policy Research
Wing, C., Simon, K., & Bello-Gomez, R. A. (2018) · Annual Review of Public Health · doi:10.1146/annurev-publhealth-040617-013507 · Cited by 1,470
Antwi, Y. A., Moriya, A. S., & Simon, K. (2013) · American Economic Journal: Economic Policy · doi:10.1257/pol.5.4.1 · Cited by 223
Delayed Discharges and Hospital Type: Evidence from the English NHS
Gaughan, J., Gravelle, H., & Siciliani, L. (2017) · Fiscal Studies · doi:10.1111/j.1475-5890.2017.12141 · Cited by 36
Metadata
- Authors
- Kolstad, J. T., & Kowalski, A. E.
- Venue
- Journal of Public Economics
- Publisher
- Elsevier BV
- Published
- 2012-12
- Volume
- 96
- Issue
- 11-12
- Pages
- 909-929
- ISSN
- 0047-2727 (ISSN-L)
- OpenAlex
- W3026006840
- Cited by
- 281
- References
- 16
- FWCI
- 68.18
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: The impact of health care reform on hospital and preventive care: Evidence from Massachusetts. https://app.cochat.ai/papers/10.1016/j.jpubeco.2012.07.003
- The paper
- Kolstad, J. T., & Kowalski, A. E. (2012). The impact of health care reform on hospital and preventive care: Evidence from Massachusetts. Journal of Public Economics. https://doi.org/10.1016/j.jpubeco.2012.07.003
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.