Systematic review: impact of health information technology on quality, efficiency, and costs of medical care
- PMID: 16702590
- DOI: 10.7326/0003-4819-144-10-200605160-00125
Systematic review: impact of health information technology on quality, efficiency, and costs of medical care
Abstract
Background: Experts consider health information technology key to improving efficiency and quality of health care.
Purpose: To systematically review evidence on the effect of health information technology on quality, efficiency, and costs of health care.
Data sources: The authors systematically searched the English-language literature indexed in MEDLINE (1995 to January 2004), the Cochrane Central Register of Controlled Trials, the Cochrane Database of Abstracts of Reviews of Effects, and the Periodical Abstracts Database. We also added studies identified by experts up to April 2005.
Study selection: Descriptive and comparative studies and systematic reviews of health information technology.
Data extraction: Two reviewers independently extracted information on system capabilities, design, effects on quality, system acquisition, implementation context, and costs.
Data synthesis: 257 studies met the inclusion criteria. Most studies addressed decision support systems or electronic health records. Approximately 25% of the studies were from 4 academic institutions that implemented internally developed systems; only 9 studies evaluated multifunctional, commercially developed systems. Three major benefits on quality were demonstrated: increased adherence to guideline-based care, enhanced surveillance and monitoring, and decreased medication errors. The primary domain of improvement was preventive health. The major efficiency benefit shown was decreased utilization of care. Data on another efficiency measure, time utilization, were mixed. Empirical cost data were limited.
Limitations: Available quantitative research was limited and was done by a small number of institutions. Systems were heterogeneous and sometimes incompletely described. Available financial and contextual data were limited.
Conclusions: Four benchmark institutions have demonstrated the efficacy of health information technologies in improving quality and efficiency. Whether and how other institutions can achieve similar benefits, and at what costs, are unclear.
Comment in
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Health information technology: shall we wait for the evidence?Ann Intern Med. 2006 May 16;144(10):775-6. doi: 10.7326/0003-4819-144-10-200605160-00013. Ann Intern Med. 2006. PMID: 16702595 No abstract available.
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Electronic health records: who pays?Ann Intern Med. 2006 Dec 5;145(11):864. doi: 10.7326/0003-4819-145-11-200612050-00014. Ann Intern Med. 2006. PMID: 17146074 No abstract available.
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