A substantial portion of the population uses some form of complementary or alternative medicine (CAM). Many of them never tell their doctors. Many of those doctors, in turn, have no reliable way to know what their patients are doing outside the appointment room.
Surveys of CAM use exist to close that information gap.
The Questions Worth Asking
Useful CAM surveys move beyond simply counting who uses what. The more interesting questions are about motivation, integration, and consequence.
What practices are people turning to, for which conditions, and at what stage of their care? Is CAM use concentrated among those who feel underserved by conventional medicine, or is it equally common among those whose conventional care is going well? Are people using these approaches alongside conventional treatment, in place of it, or only after it has failed? Do they tell their providers, and if not, why not?
These questions matter because the answers shape how healthcare systems should respond. A pattern of disclosed, complementary use suggests one kind of system response. A pattern of undisclosed, replacement use suggests something very different.
Populations Studied
CAM survey work spans a wide range of populations. The general public has been surveyed extensively through large national instruments. So have specific patient groups defined by condition, demographics, or care setting.
Among the populations of particular interest to the Institute are military service members, veterans, and their families. Use patterns in these populations have specific implications for the military health system and the Veterans Health Administration, both of which have expanded their integrative care offerings substantially over recent years. Surveys help these systems understand whether services are reaching the people most likely to benefit and whether new offerings are addressing real demand.
Other surveys focus on the provider side. What do clinicians know about the CAM approaches their patients are using? How do they handle disclosure when it happens? Are they comfortable making referrals, and if not, what is missing from their training?
What the Data Has Generally Shown
Several findings have appeared consistently across CAM surveys conducted in different populations and time periods.
Prevalence of use is high and has remained so. The specific modalities shift, but the overall proportion of the population using something outside conventional medicine has been substantial across decades of measurement.
Pain, stress, mental health, and chronic conditions are the most common drivers. CAM use tends to concentrate where conventional medicine offers partial answers and patients are looking to fill the gaps.
Disclosure rates to primary providers remain lower than they should be. This is one of the more actionable findings, because it points to a specific failure in clinical communication that can be addressed through training and structural change.
Demographic patterns are real and complicated. Income, education, geography, and culture all shape CAM use in ways that pure prevalence numbers can obscure.