https://www.ajmc.com/journals/issue/2019/2019-vol25-n1/organizational-influences-on-healthcare-system-adoption-and-use-of-advanced-health-information-technology-capabilities
Organizational Influences on Healthcare System Adoption and Use of Advanced Health Information Technology Capabilities

Paul T. Norton, MPH, MBA; Hector P. Rodriguez, PhD, MPH; Stephen M. Shortell, PhD, MPH, MBA; and Valerie A. Lewis, PhD, MA

Since the passage of the Patient Protection and Affordable Care Act in 2010, health systems, hospitals, and medical groups have faced considerable public pressure1 to assume an increased amount of risk for the costs and outcomes of their patient populations through value-based payment models. This increased risk requires transforming the way that healthcare services are delivered and reimagining the role that health systems play in managing their patient populations. One response has been the development of more than 1000 accountable care organizations (ACOs) in the 50 states, providing care to nearly 33 million Americans.2 A key capability of such organizations is their use of advanced health information technology (HIT),3 but adoption of HIT capabilities necessary to enable value-based care remains slow.4 Although vendors have developed a wider variety of additional capabilities to facilitate patient engagement and performance measurement, wide variability in the uptake of these features by healthcare organizations has caused increasing concerns about a “digital advanced use divide.”5

Given the extensive and well-documented challenges that come with driving innovations in health systems,6 it seems likely that at least some of this variation can be explained by organizational characteristics. Previous studies in medical groups, for example, have found hospital ownership to be predictive of basic HIT adoption and care management processes in medical groups,7,8 and others have found that larger, more integrated ACOs are better positioned for technology adoption.9 These findings generate further questions regarding the heterogeneity of HIT implementation among health systems, such as how they allocate resources for HIT development and the extent to which they standardize their use of HIT.

There is considerable heterogeneity in organizational models used by health systems. In this study, health systems were defined as corporate parents or owner subsidiaries that include either 1 hospital and at least 1 set of primary care physicians, 2 or more hospitals, or 2 or more primary care groups and are connected by contract or ownership. Systems may own and manage hospitals and medical practices associated with the system or may operate under affiliate models. It is possible that health systems with more direct management responsibilities of their hospitals and medical groups may more effectively integrate different stakeholders, a critical element of innovation in healthcare organizations,10 and may be able to deliver more training across the enterprise, another critical success factor of electronic health record (EHR) implementations identified in previous research.11

Second, resource allocation practices can vary widely across health systems. Health systems that centrally allocate resources and purchase software may realize economies of scale with their purchases and have more bargaining power with vendors, which would enable greater adoption of advanced capabilities. In addition, they may have greater resources to invest in enterprise-wide training. Existing research provides some empirical evidence of the impact of resources on HIT adoption in health systems,9 and there is also evidence that information technology (IT) resources have driven adoption and success of other types of software systems in large enterprises.12

Finally, there may be differences in the extent to which health systems standardize their use of technology. Health systems that standardize their EHRs will likely need to change fewer processes and deliver fewer different versions of training when rolling out new capabilities, which may enable greater adoption. Although the link between enterprise-wide technology standardization and adoption has not been empirically examined in health systems, researchers have documented the importance of enterprise-wide architecture and standards for other IT capabilities within large organizations.13

Drawing on the conceptual model shown in the Figure, the following 3 hypotheses were tested: (1) Compared with health systems that do not own and manage medical groups and hospitals, health systems that own and manage medical groups and hospitals will have greater adoption of advanced HIT capabilities; (2) Compared with health systems with decentralized resource allocation practices, health systems with more centralized resource allocation practices will have greater adoption of advanced HIT capabilities; and (3) Compared with health systems with low EHR standardization, health systems with higher degrees of EHR standardization will have greater adoption of advanced HIT capabilities.
METHODS

Data

Data used were from the system version of the 2017/2018 National Survey of Healthcare Organizations and Systems (NSHOS), a nationally representative sample of healthcare systems that took place from June 2017 to August 2018. The survey was based on previous surveys developed involving the National Study of Physician Organizations9,14 along with additional questions focusing on the use of biomedical innovations, patient engagement strategies, evidence-based care management, and performance-based incentives. Respondents were the individuals most knowledgeable about the survey questions, who most commonly were system presidents, chief executive officers, or chief medical officers. Survey responses were matched with data obtained from IQVIA information services to provide additional context on systems’ organizational characteristics. Of the 732 randomly sampled healthcare systems, 446 responded (60.9% completion), 425 of which were included after data cleaning was completed. Given the strong financial incentives that the Meaningful Use program created for basic EHR adoption, we eliminated systems that had not fully adopted basic EHRs (n = 36). The final analytic sample included 389 healthcare systems, 22.6% (n = 88) of which were subsidiaries of corporate parents.

Measures

Outcome: advanced HIT adoption. Survey respondents were asked about the adoption and use of 5 advanced HIT capabilities across their health systems. Four of these capabilities—patients’ access to their electronic medical records, patients’ ability to electronically comment on their medical records, physicians’ and patients’ ability to communicate with each other via secure email, and physicians’ ability to know whether patients have filled prescriptions—are required capabilities for Certified Electronic Health Record Technology (CEHRT) designation.15 The fifth, advanced analytic systems, has been identified in previous research as a key ingredient to successful care management for complex patients.16

For each of these capabilities, respondents were asked how many hospitals or medical groups in their systems had the following features, with possible answers being “none,” “some,” “most,” or “all.” To construct a measure of successful advanced HIT adoption, we assigned 1 point to answers of “most” or “all” and 0 points to answers of “none” or “some.” Overall adoption was then measured on a scale of 0 to 5, with a score of 0 indicating no capabilities had been adopted successfully and a score of 5 indicating all capabilities were adopted successfully.

Predictor variables. Health system ownership and management was measured via 2 survey questions that asked survey respondents about whether the system owned or managed hospitals and medical groups. Respondents had the option of answering “no,” “own only,” “manage only,” and “own and manage.” Because we were sampling health systems, which, by nature, had a high level of medical group and hospital ownership and management (nearly 50% of the systems in our sample reported both owning and managing hospitals and medical groups), a categorical variable was created, assigning a value of 1 to systems that owned and managed hospitals and medical groups and 0 to all other systems.

The degree to which a health system centrally allocated resources was measured using answers to 3 questions in the survey based on their ability to serve as potential proxies for resources that could be dedicated to new HIT systems. The questions were “What level of financial planning and revenue sharing best describes your healthcare system?” “At what level [is capital budgeting] primarily conducted?” and “At what level [is IT vendor selection] primarily conducted?” We assigned a point value of 1 for each activity conducted at the system level (and 0 for those conducted locally or regionally) and took an unweighted average of the point values across the 3 questions to develop an index of how much resource allocation was centralized (0 being none of these activities conducted at the system level, 1 being all activities conducted at the system level).

EHR standardization was measured using answers to 2 questions: “How many EHR systems do you have in place across your hospitals’ primary care groups?” and “To what extent are EHR data elements standardized?” Fully standardized EHR data elements and a single EHR system were each assigned a point value of 1, and we took an unweighted average of the point values across the 2 questions to develop an index of how much their EHR systems were standardized.
Control variables. Previous research has found that alternative payment model (APM) participation is correlated with both more integrated organizational structures17 and higher levels of HIT adoption.18 We controlled for APM experience, which was measured by the total number of APMs in which most or all of the system’s hospitals and medical groups were participating. We also controlled for relative size (standardized to a mean of 0 and SD of 1), as measured by the number of physicians in the system, and whether respondents perceived there to be high levels of competition in either inpatient or outpatient settings. We also controlled for each system’s geographic region based on the US Census, which was categorized as South, Midwest, Northeast, West, or Multiregion based on the states in which they operated.

Analyses

Descriptive analyses of all key study variables were conducted, including a breakdown of advanced HIT adoption, organizational structure, EHR standardization, and resource allocation practices by number and percentage of systems. All 3 hypotheses were tested simultaneously using multivariate regression models that examined the association of organizational structure, resource centralization, and EHR standardization with advanced HIT adoption, controlling for system size, perceived competition, region, corporate parent status, and APM experience. Results were weighted to account for differential selection probabilities resulting from probability sampling of systems based on organizational complexity, including having a subsidiary or not.

RESULTS

Table 1 provides descriptive statistics for key study variables. Adoption of advanced HIT capabilities was inconsistent, with a mean of 2.4 capabilities adopted and most (80.5%) systems in our sample adopting between 1 and 4 features. Only 8.4% of systems in our sample reported adopting all 5 advanced HIT capabilities. Adoption rates varied widely by feature, with more than 75% of systems reporting the ability of patients to access their medical records but less than 32% reporting the ability of physicians to know when patients fill prescriptions and of patients to comment on their medical records.

Just under half (48.8%) of the systems in our sample owned and managed their hospitals and medical groups. They also allocated resources centrally; 67.3% reported conducting capital budgeting at the system level and 78.9% reported conducting vendor selection at the system level. Most systems used a single EHR (69.0%) and standardized EHR data elements (58.6%), although just under half reported using both a single EHR and standardized data elements (48.1%). APM experience varied, with the lowest rate of participation being in risk-bearing ACOs (21.5%) and the highest rate of participation being in primary care improvement and pay-for-performance programs (60.4%).

Multivariate regression results indicate that the degree of EHR standardization (β = 0.76; P = .001) was the strongest predictor of advanced HIT adoption, supporting our third hypothesis, and system management and ownership of hospitals and medical groups was also statistically significant (β = 0.32; P = .04), supporting our first hypothesis. The degree of centralized resource allocation was not a significant predictor of advanced HIT adoption (β = 0.42; P = .13). Of our control variables, APM experience was a significant predictor of advanced HIT adoption (β = 0.10; P = .03), as was size (β = 0.13; P = .006), but other variables were not significant. Full regression results can be found in Table 2.
DISCUSSION

Our findings have several implications for the further adoption of advanced HIT capabilities by health systems. First, the strongest predictor of advanced HIT adoption in a health system is the extent to which EHR systems are standardized. The second is that ownership and management of hospitals and medical groups is also a significant predictor of advanced HIT adoption. The third is that system resource allocation practices are less significant predictors of advanced HIT adoption when controlling for other organizational characteristics. Whereas previous studies’ findings suggest that resources and economies of scale are the primary drivers of HIT adoption among medical groups and hospitals, we found that EHR standardization, rather than centralized resource allocation, was the strongest predictor of advanced HIT adoption across a healthcare system.

There are several reasons why standardization may have a much stronger association with advanced HIT adoption than resource centralization in our study. The first is that our focus was specifically on health systems, which, by nature, are more centralized and well-resourced organizations than are independent hospitals and medical groups. The second is that the adoption of advanced EHR capabilities may represent more a challenge of change management than of resource allocation. All of the systems in our analytic sample had already acquired EHRs, and 4 of the 5 capabilities in question were required capabilities of EHR systems for CEHRT designation. Third, health systems may decide to standardize their EHR systems so they can adopt advanced capabilities in the future, which the cross-sectional nature of our study could not address.

Our findings indicate that health systems that aim to accelerate the adoption of advanced HIT capabilities may benefit from standardizing their EHR systems across hospitals and medical groups within the system. The results related to resource allocation indicate that organizations with more distributed forms of resource allocation, but high levels of standardization, may achieve similar levels of advanced technology adoption. The findings also suggest that payers can assist health systems with EHR adoption by targeting technical assistance toward health systems with lower levels of EHR standardization. Moreover, HIT vendors may consider developing ways to standardize use of their products across systems to ensure greater adoption of new and beneficial features.

Limitations

The results should be considered in light of some limitations. First, the cross-sectional nature of the NSHOS cannot establish the temporal ordering of any associations found. Second, NSHOS is a single-informant survey, which may affect the internal validity of the study. Self-reported data are sometimes inaccurate, and it is possible that the reliability with which systemwide standardization, resource allocation, and HIT capabilities are reported varied by respondent. Third, data limitations prevented us from controlling for additional factors that may influence advanced HIT adoption, such as patient mix. Finally, we included measures of centralized resource allocation, but the specific resources available for investment in training and software upgrades were not assessed. Questions about targeted HIT investments would be useful to include in future research.

CONCLUSIONS

The degree of EHR standardization within health systems, as measured by the degree of uniformity of technology systems and data elements across hospitals and medical groups, is a stronger predictor of advanced HIT adoption than the system’s ownership and management structure, resource allocation practices, or APM participation. Health system leaders looking to improve the diffusion of new technologies should consider ways to better standardize their implementation and use of EHRs to drive widespread adoption of and benefit from new features. Further research should assess the impact of healthcare system resources for training and software upgrades on the adoption of advanced HIT and determine the drivers of wide variability in the adoption of individual advanced HIT capabilities. 

Acknowledgments

The statements, findings, conclusions, views, and opinions contained and expressed in this article are based in part on data obtained under license from IQVIA information services: OneKey subscription information services 2010-2017, IQVIA Incorporated, all rights reserved. The statements, findings, conclusions, views, and opinions contained and expressed herein are not necessarily those of IQVIA Incorporated or any of its affiliated or subsidiary entities.

The American Medical Association (AMA) is the source for the raw physician data; statistics, tables, or tabulations were prepared by Paul Norton using AMA Masterfile data.
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