HCAD 8006 Week 11 Research Interest Statement Example

From "How Does Integration Affect Care?" to a Question Nobody Has Answered: A Research Interest Statement Narrowed Three Times, Each Cut Justified by the Literature

Student Name

Walden University

HCAD 8006: PhD Healthcare Administration Foundational Concepts

Instructor Name

Month Day, Year

From "How Does Integration Affect Care?" to a Question Nobody Has Answered: A Research Interest Statement Narrowed Three Times, Each Cut Justified by the Literature

Where the Interest Begins

My interest begins with the broadest version of the question this term has circled: how does integrating hospitals and physicians affect the care patients receive? Stated that way, the question has no answer, because "integration" covers several objects and "care" covers everything from prices to patient experience. The statement below narrows it three times. Each cut is justified by something in the published work rather than by preference.

First Cut: From Outcomes to the Mechanism

The first cut sets aside final outcomes such as mortality, readmission and patient experience, and moves to the mechanism that is supposed to produce them. The reason is that outcome studies already exist and have produced mixed results. Scott et al. (2017) found no greater improvement in hospital quality measures among hospitals that increased physician affiliation, and Machta et al. (2019) found the wider evidence mixed. Another outcome study would add to a literature whose central uncertainty lies elsewhere: no one knows whether integration changes the coordination it is supposed to produce. The cut moves the interest to process integration, meaning what passes between units: information, referrals and plans. What is set aside: whether any process change eventually improves outcomes, which would be a later question.

Second Cut: From All Integration to Acquisitions of Primary Care Practices

The second cut chooses a setting where the mechanism should behave most clearly. Primary care practices are the hub from which most referrals originate, so if acquisition changes how information and referrals move, the change should be visible there first. Most price studies have focused on specialties, and Baker et al. (2014) and Capps et al. (2018) examined prices across physician practices without observing referral processes. The cut sets aside specialty practices, hospital-to-hospital mergers and post-acute providers. What is set aside: whether findings in primary care would hold for specialists, whose referral patterns differ.

Third Cut: From Where Referrals Go to What Travels With Them

The third cut separates two aspects of referral. One, where referrals go, has been studied. Baker et al. (2016) found that patients of physicians in hospital-owned practices were more likely to be admitted to the owning hospital, which shows that integration changes destinations. The other aspect, whether the information that accompanies a referral becomes more complete and timely after acquisition, has received far less attention, and it is closer to what coordination means. The cut keeps that second aspect. What is set aside: referral destination, which is already documented, except as a control.

The Question

After a health system acquires an independent primary care practice, does the information that accompanies the practice's referrals to the system's specialists, such as the reason for referral, current medications and recent results, become more complete and arrive sooner, compared with the practice's referrals before acquisition and with referrals from practices that remained independent?

The question names a population of practices, an event, an outcome that can be measured in referral records and a comparison. The literature reviewed this term has not answered it. Valentijn et al. (2013) describe clinical and functional integration as the levels at which coordination happens, and this question measures one part of those levels directly.

Why the Question Matters

If information becomes more complete after acquisition, the defenders of integration gain evidence for the mechanism they invoke, and the absence of outcome gains in structural studies would need another explanation. If it does not, the field would have direct evidence that ownership alone does not produce the coordination it is expected to, which would bear on how health systems approach acquisitions and how policymakers judge them.

What the Question Will Require

Answering it will require access to referral records before and after acquisition, which favors a health system that kept the acquired practices' historical data, and a definition of information completeness that two reviewers could apply consistently. Both requirements are the subject of next term's design work.

References

Baker, L. C., Bundorf, M. K., & Kessler, D. P. (2014). Vertical integration: Hospital ownership of physician practices is associated with higher prices and spending. Health Affairs, 33(5), 756-763. https://doi.org/10.1377/hlthaff.2013.1279

Baker, L. C., Bundorf, M. K., & Kessler, D. P. (2016). The effect of hospital/physician integration on hospital choice. Journal of Health Economics, 50, 1-8. https://doi.org/10.1016/j.jhealeco.2016.08.006

Capps, C., Dranove, D., & Ody, C. (2018). The effect of hospital acquisitions of physician practices on prices and spending. Journal of Health Economics, 59, 139-152. https://doi.org/10.1016/j.jhealeco.2018.04.001

Machta, R. M., Maurer, K. A., Jones, D. J., Furukawa, M. F., & Rich, E. C. (2019). A systematic review of vertical integration and quality of care, efficiency, and patient-centered outcomes. Health Care Management Review, 44(2), 159-173. https://doi.org/10.1097/HMR.0000000000000197

Scott, K. W., Orav, E. J., Cutler, D. M., & Jha, A. K. (2017). Changes in hospital-physician affiliations in U.S. hospitals and their effect on quality of care. Annals of Internal Medicine, 166(1), 1-8. https://doi.org/10.7326/M16-0125

Valentijn, P. P., Schepman, S. M., Opheij, W., & Bruijnzeels, M. A. (2013). Understanding integrated care: A comprehensive conceptual framework based on the integrative functions of primary care. International Journal of Integrated Care, 13(1), Article e010. https://doi.org/10.5334/ijic.886