While society will always need professionals who provide hands-on care of patients, there are growing opportunities for others in health professions to contribute to not only contribute to people’s health, but also improve the delivery of healthcare and advanced research. One such profession is biomedical and health informatics, which aims to apply information and associated technologies for the benefit of health and biomedicine.
There are many trends in healthcare that demonstrate increased need for professionals trained in informatics. It begins with the person in good health who aims to maintain their health and prevent disease. If that person becomes a patient, he or she wants to interact with the healthcare system in the same way they interact with other industries such as retail or banking, i.e., through electronically connected means. For those who work in healthcare, informatics competence is needed to function in their profession, such as accessing clinical knowledge and being guided by clinical decision support. As patients, especially those with one or more chronic illnesses, are cared for by teams of individuals from home caregivers to medical subspecialists, there will be a growing need for care teams to communicate effectively and coordinate care. Likewise, as the population disperses, systems employing telemedicine and other forms of remote communication will be required.
Moving to the population level, public health authorities need to be vigilant about health-related threats, whether natural (emerging infectious diseases) or manmade (bioterrorism). And of course we will continue to require a robust medical research infrastructure, with particular promise for data-intensive research methods, such as identifying genomic causes of health and disease or leveraging the data in the growing number of electronic health record systems. As new models of healthcare financing demand more accountability for care, information systems will be required so patients can be tracked and complications can be identified and addressed early. Some combine all of the needs described in this paragraph together into the concept of the learning health system, which continuously learns based on accumulated data and its analysis .
A common thread across all of these trends is the growing use of data and information systems. Unlike the common uses of information technology (IT), these applications are more complex, from their need to be standardized, interoperable, and reliable as well as their requirement to protect safety and individual privacy. The field that most directly addresses these issues is what I prefer to call biomedical and health informatics .
A variety of data points show that professionals from this discipline are in high demand. An analysis of online job postings found 226,356 positions advertised between 2007-2011 . In the meantime, a survey of healthcare CIOs shows a concern for shortages of workers in this area who have the proper skills . For physicians working in this area, there is now a new medical subspecialty has been designated . The nursing profession has had a specialization in nursing informatics for over a decade, and we are likely to see more certifications, as the American Medical Informatics Association (AMIA) has created a task force to develop an Advanced Interprofessional Informatics Certification that will apply to all informatics professionals, not just those who are physicians and nurses.
The occupation providing the expertise and leadership in health IT is also called, for short, informatics . Other adjectives sometimes appear before “informatics” in other contexts, such as clinical informatics, biomedical informatics, bioinformatics, etc., but all generally refer to the discipline working to apply information to improve health and healthcare delivery . While the occupation of informatics is fundamentally a health profession, it is not just an extension of a specific healthcare field, i.e., a physician, nurse, or allied health professional who is savvy with IT. By the same token, those who work in the occupation of health informatics are not IT professionals or managers who happen to be applying general IT skills to health or healthcare settings.
This unique occupation is increasingly valued in healthcare organizations. In the United States, for example, an analysis by the Office of the National Coordinator for Health IT of a comprehensive database of 84 million online job postings to find a total of health IT-related 434,282 job postings between 2007-2011, with 226,356 health IT core jobs and 207,926 health IT-related clinical user jobs . The former would contain many who work in the occupation of informatics.
Informatics is more about information than technology, with the latter being a tool, albeit an important one, to enable better use of information. The former School of Informatics at the State University of New York Buffalo defined informatics as the Venn diagram showing the intersection of people, information, and technology. Friedman has defined a “fundamental theorem” of informatics, which states that informatics is more about using technology to help people do cognitive tasks better than about building systems to mimic or replace human expertise . He has also defined informatics as “cross-training,” bridging an application domain (such as public health or medicine) with basic information sciences .
Within informatics are a myriad of sub-disciplines, all of which apply the same fundamental science and methods, but focused on particular subject domains. As shown in the first figure below, informatics proceeds along a continuum from the cellular and molecular (bioinformatics) to the person (medical or clinical informatics) to the population (public health informatics). Within clinical informatics may be a focus on specific healthcare disciplines, such as nursing (nursing informatics), dentistry (dental informatics), pathology (pathology informatics), etc. as well as among consumers and patients (consumer health informatics). There are also disciplines in informatics that apply across the cell-person-population spectrum:
- Imaging informatics – informatics with a focus on imaging, including the use of PACS systems to store and retrieve images in health care settings
- Research informatics – the use of informatics to facilitate biomedical and health research, including a focus on clinical and translational research that aims to accelerate research findings into healthcare
What are the competencies required for a career in informatics? They can be grouped into three categories, as shown in the next figure below, which broadly include health/biomedical domain knowledge, information and computing science, and people/communication skills. (This is an update of a figure I have published elsewhere, e.g., .)
Does one need to be a clinician to be trained and effective in a job in informatics? Must one know computer programming? The answers are no and no. Informatics is a very heterogeneous field, and there are opportunities for individuals from all types of backgrounds. One thing that is clear, however, is that the type of informatics job you assume will be somewhat dependent on your background. Those with healthcare backgrounds, particularly medicine or nursing, are likely to draw on that expertise for their informatics work in roles such as a Chief Medical or Nursing Informatics Officer. Those who do not have healthcare backgrounds still have plenty of opportunities in the field, but are more likely to end up in the wide variety of other jobs that are available.
Informatics is a career for the 21st century. There are a wide variety of jobs for people with diverse backgrounds, interests, and talents, all of whom can serve the health of society through effective use of information and associated technologies. The pathway to get to that career usually involves graduate (i.e., beyond a bachelor's degree) education, and a database of such programs is available from AMIA and includes our program at Oregon Health & Science University (OHSU).
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