J Altern Complement Med. 2012 (Apr); 18 (4): 347–353 ~ FULL TEXT
Harrison Ndetan, MSc, MPH, DrPH, Marion Willard Evans, Jr., DC, PhD, MCHES, Cheryl Hawk, DC, PhD, and Clark Walker, BS, MPH
Cheryl Hawk, DC, PhD
Logan College of Chiropractic
Chesterfield, MO 63017
OBJECTIVES: The aim of this study was to describe use of chiropractic and/or osteopathic manipulation by children in the United States along with the specific health conditions for which they sought care.
METHODS: The study was a secondary data analysis of the National Health Interview Survey 2007, Child Alternative Medicine file as well as the Child Core Sample. National population estimates were generated for reported use of chiropractic or osteopathic manipulation (C/OM) by children for specific health conditions. Odds ratios (OR) and 95% confidence intervals (CI) were generated from binary logistic regression models that assessed the likelihood that children of specific characteristics would use this therapy.
RESULTS: National estimates indicated that 2.3 million children (2.3%) in the United States had used C/OM in 2007. C/OM was the most common complementary and alternative medicine procedure. Children aged 12–18 years were more likely to have seen these providers than were younger age groups (OR=3.4 [95% CI, 2.1–5.5]). Homeopathy (1.2%), massage (1.0), and naturopathy (0.3%) were the next most common procedures. The most common complaints were back and neck pain. Other conditions for which children were seen included other musculoskeletal conditions, sinusitis, allergies, and nonmigraine headaches. Racial categories did not differ significantly regarding use of manipulation, but those children with both mother and father in the household were more likely to have used this form of care (OR=1.7 [95% CI, 1.1–2.6]).
CONCLUSIONS: C/OM is primarily used for back and neck pain, which is increasing in prevalence in children. Teens are more likely to use it than are younger children.
From the FULL TEXT Article:
Recent studies of complementary and alternative
medicine (CAM) use in the United States indicate chiropractic
care to be among the most commonly utilized of the
CAM provider groups.  In addition, a 2002 study found it to
be the most commonly used provider-based CAM service,
although it may be utilized less than self-help strategies such
as prayer or meditation.  The National Board of Chiropractic
Examiners samples the chiropractic profession every 5 years,
and the most recent analysis of practice characteristics published
in 2010 indicated care for patients < 17 years of age
increased 7.4% since 2005.  Self-reported survey data indicated
that 7.7% of patients seen in doctor of chiropractic (DC)
offices were ≤ 5 years and 9.4% were 6–17 years of age. Studies
indicate that only a minority of parents informs their
primary care physician when they use any type of CAM,  but
more may be gradually doing so. 
Among the most common uses of chiropractic care in
general are for back pain, neck pain, other musculoskeletal
pain, and headaches. [4, 6] However, it has been suggested that
pediatric or adolescent populations may present with a
broader variety of complaints, including nonmusculoskeletal
conditions.  Currently, there is a call by both pediatric and
chiropractic groups for more research in the area of adolescent/
pediatric care by doctors of chiropractic (DCs). [8–10] Of
particular interest is to identify the characteristics of patients
who see DCs, their reasons for seeking care, and the frequency
and duration of that care. Although some large national
data sets do include chiropractic, detailed information
on patient and practice characteristics is often unavailable for
analysis. The most recent National Health Interview Survey
(NHIS), one of the few national surveys to include
CAM-related questions, combined response categories related
to manipulation to include chiropractic and osteopathic
manipulation.  The NHIS has a subset that queried
pediatric use of CAM and the types of conditions for
which it is used. The purpose of this study was to describe
use of chiropractic and/or osteopathic manipulation by
children in the United States along with the specific health
conditions for which they sought care, as reported within
the NHIS- 2007.
Materials and Methods
This study was a secondary data analysis of the NHIS
2007.  The ASCII Data sets of the NHIS 2007 Person file,
Adult and Child Alternative Medicine files, as well as the
Child Core Sample (CCS) were imported into the Statistical
Analysis System, version 9.1.3 (SAS Institute Inc., Cary, NC)
and merged into a single data set. Only observations (respondents)
having records in the Child Alternative Medicine
file and variables relevant to answer the research questions
were retained. These included children aged < 18 years. The
study was approved by both the research committee and the
institutional review board of the institution at which the
analysis was performed.
The variables retained included sociodemographic variables
such as age, gender, race/ethnicity, geographic location,
and citizenship status; parental presence in the family,
parents’ level of education, and whether or not the respondent
saw a practitioner for chiropractic and osteopathic
manipulation, as well as other CAM therapists, within the
past 12 months. Most of the imported variables were recategorized
or re-coded to address the specific aims of this
Variables related to use of manipulation
In the NHIS 2007, children or their parents were asked
whether the child had seen a practitioner for chiropractic or
osteopathic manipulation in the past 12 months. A separate
variable in the CCS queried whether or not the child had
specifically seen or talked to a chiropractor. Responses considered
valid for this analysis were "yes" or "no" for each of
these variables. Other responses such as "unknown," "not
certain," or no responses were coded as missing and eliminated
from the analysis. The variable "saw practitioner for
chiropractic/osteopathic manipulation" constituted the main
outcome variable. However, a supplemental outcome variable
was defined for an affirmative response to "currently
using chiropractic or osteopathic manipulation" if a respondent
indicated in the CCS that they saw/talked to a chiropractor
or indicated they saw a practitioner for chiropractic
or osteopathic manipulation in the child CAM sample. A
separate variable queried the respondent as to whether they
saw the practitioner for treating a specific health condition.
These data were captured for a number of CAM therapy
options, as indicated in Table 1. Respondents were also
questioned on the specific health conditions for which they
saw the practitioner, using a closed-ended list format with an
option in which they could specify "other" conditions not on
Data were also collected for a number of demographic
variables that might predict the use of chiropractic and/or
osteopathic manipulation in general for children in the
United States. Information on race/ethnicity was collected
by a method consistent with the procedures used by the
Census Bureau to create the Modified Race Data Summary
File used for population control ; these categories were as
follows: Whites (non-Hispanics), Blacks, Hispanic, Asian,
Age was a continuous variable that included entry from 0
years. The United States Centers for Disease Control and
Prevention defines adolescents as ages 10–24.  This variable
was re-categorized, as the data sets excluded ages 18 years
and older, as follows: "≤ 10" and "> 10–< 18 years. For an
additional set of comparisons, age was divided into three
categories to evaluate care for preschool children (≤ 4 years);
school age children (> 4 years and ≤ 12 years); and adolescents
(older than 12 years and under age 18).
Two (2) separate variables captured whether the child was
covered by the state’s children’s health insurance program or
had any health coverage within the past 12 months. Child
level of education was assessed by a variable that categorized "never attended school or less than kindergarten" as
one level, 1st–8th grade in one, 8th–12th grade (high school)
in another, and greater than 12th grade or at least some
college, in another category. NHIS collected data in clusters
of geographic locations that included Northeast, Midwest,
South, and West regions of the United States. Parental
presence in the family was also noted as "mother, no father,"
"father, no mother," "mother and father," and "neither mother
Mother’s and father’s level of education
were recorded as separate variables and were re-coded as
≤ 8th grade, high school graduate/general education diploma
recipient, college education (including technical/vocational),
degree (associate/bachelors), and graduate education/
master’s, professional, or doctoral degree. For each of the
variables above, responses that did not fit into the defined
categories were coded as missing.
Data analyses were performed using the Statistical Analysis
System (SAS) software, version 9.1.3 (SAS institute Inc.,
Cary, NC). National population estimates (NPE) (weighted
frequencies) were generated using the NHIS survey weight,
for all variables, and included weighted percents and standard
errors. Numbers reported in the Results section are
NPEs unless otherwise stated. Odds ratios (OR) and 95%
confidence intervals (CI) were calculated using binary logistic
regression models to assess the likelihood of children
reporting having seen a practitioner for chiropractic or osteopathic
manipulation within the past 12 months as a
function of each of the demographic variables. The survey
regression model was also used to assess the relationship
between reported usage of chiropractic and osteopathic
manipulation and age. The statistical significance of each
assessment was evaluated based on the 5% level of significance.
A total of 9,417 child records (respondents) as found in the
Child Alternative Medicine file of NHIS 2007 were analyzed.
This resulted in a NPE of over 73.7 million children. Table 1
indicates the 10 most commonly utilized CAM modalities.
Chiropractic/osteopathic manipulative therapy was the
most commonly reported CAM therapy, with 2.8% (approximately
2 million) reporting an affirmative response to
the question, "During the past 12 months, did [respondent]
use chiropractic or osteopathic manipulation for a specific
health problem or condition?" Of those who reported seeing
either or both of these practitioners, 83.8% (approximately
1.4 million) also noted seeing a chiropractor in the CCS.
Approximately 300,000 who indicated in the CCS that they
saw/talked to a chiropractor did not indicate in the child
CAM sample that they saw a practitioner for chiropractic/
osteopathic manipulation. Thus, the supplemental variable,
as defined in the Methods section, resulted in 3.1% (over 2.3
million) of children in the United States having used chiropractic
or osteopathic manipulative therapy in 2007.
Of those who had used chiropractic or osteopathic manipulation
in the past 12 months, 58.0% (approximately 1.2
million) provided a response to the question, "During the
past 12 months, for what health problems or conditions did
[respondent] use chiropractic or osteopathic manipulation?" Table 2 lists the conditions for which users sought care. In
this sample, chiropractic/osteopathic manipulation was
used most commonly as treatment for back or neck pain
(55.0%), with 15.6% using this therapy for other unspecified
musculoskeletal complaints, and an additional 11.5% for
other unspecified nonmusculoskeletal complaints. Use of this
therapy as a treatment option for sinusitis was reported by
4.0%, head/chest cold 3.5%, other chronic pain 2.2%, and
Predictors of manipulative therapy use
Table 3 summarizes the demographics of children who
reported having seen (users) or not having seen (nonusers) a
practitioner for chiropractic or osteopathic manipulation for
the treatment of specific conditions.
Parent present in household and age of child.
When both mother and father were present in the household as compared
to mother alone, children were more likely to report
use of manipulative therapy (OR = 1.7 [95% CI, 1.1–2.6]). If
the child was > 10 years as compared to ≤ 10, they were
twice as likely to have used manipulative therapy (OR = 2.0
[95% CI, 1.4–2.8]). In the three category comparisons using
preschool age ( ≤ 4 years) as referent, school-age children ( > 4
to ≤ 12 years) were 1.7 times more likely to be seen for
manipulation (95% CI, 1.1–2.8) and teens ( > 12 and < 18 years)
were 3.4 times more likely to have been seen (95% CI, 2.1–5.5).
All nonwhite categories reported
significantly less use of manipulative therapy: Hispanic
versus referent group white (OR= 0.3 [95% CI, 0.2–0.6]);
black (OR = 0.2 [95% CI, 0.1–0.3]); Asian (OR = 0.14 [95% CI,
0.1–0.4]); others, (OR = 0.5 [95% CI, 0.1–2.7]).
When the father was a highschool
graduate, compared to eighth grade or less (referent)
education, they were no more or less likely to have a child
treated with manipulation (OR = 1.1 [95% CI, 0.4–3.0]); nor if
a college graduate (OR = 1.5 [95% CI, 0.6–3.9]); nor graduate
degree (OR = 2.1 [95% CI, 0.8–6.0]).
Children whose mother
had a high-school education versus eighth grade or less
(referent) were no more or less likely to have been treated
with manipulation (OR = 1.3 [95% CI, 0.4–3.8]); college degree
(OR = 2.6 [95% CI, 0.9–7.4]); graduate degree (OR = 1.9
[95% CI, 0.6–6.3]).
Children’s state health insurance program.
who were enrolled in a state children’s health insurance
program (CHP) program were less likely to have been seen
for manipulation than those not enrolled in a CHP plan
(OR = 0.7 [95% CI, 0.3–1.8]), but this difference was not statistically
The chief limitations of this study were related to the
construction of the questions available for analysis. First,
chiropractic and osteopathic manipulation was combined in
a single variable, making it impossible to make conclusions
about the characteristics or complaints of patients of either
practitioner. This is an important distinction, since osteopathic
scope of practice includes the use of drugs and surgery
as well as manipulation, so it is possible that patients
who see osteopathic practitioners for manipulation might
have different characteristics and chief complaints than
those who see chiropractic practitioners. Even though it
was estimated in the 1990s that > 90% of spinal manipulation
in the United States was performed by DCs, the proportion
of osteopathic physicians using manipulation
may be higher at this time. [14, 15] This report’s finding that the
CCS subset showed an additional 300,000 children who
reported use of chiropractic — who had not reported this on
the NHIS question about use of chiropractic/osteopathic
manipulation — even suggests that it might have been confusing
to respondents to combine the two professions.
Second, the use of an at least partially closed-ended question
for the complaints for which respondents used
manipulation may have limited the information available.
Evidence of this is that the third largest category of complaints
was those unspecified on the list.
The current analysis indicated that chiropractic and/or
osteopathic manipulation was the most common CAM procedure
reported. Older children, especially teens, were much
more likely to report use than were younger children, and
nonwhite racial/ethnic groups were less likely to use it. Most
reported care was provided for back and neck pain or other
musculoskeletal conditions. However, a small minority reported
care for nonmusculoskeletal conditions such as sinusitis,
colds, or allergies.
A 2002 study suggested that chiropractors in general were
marketing to parents and that ad campaigns were increasing
the numbers of children seen, suggesting further that approximately
20 million children were seen by chiropractors
in 1993.  This is hard to reconcile with the estimate in this
article, based on the NHIS, of approximately 2.3 million in
The fact that back or neck pain is commonly treated in this
age group is not surprising, as studies indicate that back pain
is increasing in prevalence among the pediatric/adolescent
population.  Studies have indicated that > 20% of children
aged 12–15 years have lower back pain, and the 1–month
period prevalence may be higher.  Jeffries and colleagues
reported idiopathic adolescent spinal pain to be fairly common,
and that lifetime prevalence of lower back pain may
range from 7.4% to 78.2%, depending on the study cited. 
Neck pain was less common among adolescents, but thoracic
pain ranged from 9.5% to 72% in this population.
data on pain in this age group appears to indicate
that musculoskeletal pain accounts for almost 65% of all pain
reported.  In addition, while the incidence of chronic musculoskeletal
pain peaks at around 14 years, it may predict
chronic widespread pain in adulthood. 
Other CAM and chiropractic use statistics
Studies other than the NHIS have investigated adolescent
use of CAM. Consistent with the current study’s findings,
use of manipulative care was not uncommon among this age
group. In 2006, an online survey using the Harris Interactive
system queried a youth sample on use of CAM and herbal
and dietary supplements.  This study found that 79% of
adolescents had used some CAM in their lifetime. Of those,
2.9% had seen a DC. In 2005, Braun and colleagues reported
that in a sample of 401 adolescents (ages 12–18) in a Midwest
urban ambulatory care center, 68% had used one or more
CAM therapies. 
Chiropractic care was number 4, after
herbal preparations, massage, and megavitamins. This
amounted to 20.9% of their sample having specifically seen a
DC at some point in their life. Also, consistent with our
findings, alleviation of physical pain was the primary reason
for care. This seems indicative of most manipulative services
being rendered by DCs and not other provider groups. The
data analysis in the current study, which combined the CCS
subset with the larger NCIS sample, may also indicate that a
larger number of children have received manipulation than
has been previously reported.
A 2001 practice-based research study of the prevalence of
nonmusculoskeletal complaints among 7,651 chiropractic
patients, found that in those < 14 years of age, back pain was
most the most common chief complaint, followed by neck
pain, and then other nonmusculoskeletal problems such as
ear infections, colds/upper respiratory infections, and allergies.  Chief complaints for the 15–19–year-old range in this
study were almost exclusively back, neck, and musculoskeletal
Pohlman and colleagues surveyed 218 DCs who hold
postgraduate certification in care of children in 2010, via an
online survey.  This certification required 2–3 years of
postgraduate education in the area of pediatric chiropractic.
Even among this group of DCs with certification in pediatric
care, less than 40% of their patients were children; 24% were
< 5 years old, and 15% were between 5 and 18 years. This is
at odds with our findings that use was more common among
older children; perhaps chiropractors who specialize in pediatrics
tend to see younger children than do chiropractors
who have a more general practice. Of their population of
patients under 19 years of age, 57% had a caregiver or parent
who also received chiropractic care. Consistent with the
current study’s findings, at least with respect to the two most
common conditions, providers most frequently (one to three
patient visits per month) saw patients with back or neck
pain, asthma, birth trauma, colic, constipation, ear infection,
head or chest cold, and upper respiratory infections.
From the NHIS data, chiropractic or osteopathic manipulation
appears to be the most commonly used CAM
provider-delivered therapy for children. It is therefore important
to note that in 2009, a set of recommendations for
best practices for chiropractic care for children was published,
the result of a formal consensus process using the
RAND-UCLA methodology.  It should also be noted that
numerous recent editorials and reviews suggest that more
research is needed relative to chiropractic care in this age
group, and though adverse events in this population seem to
be rare,  most research lacks scientific rigor. [26–28]
DCs primarily treat children < 18 years for musculoskeletal
problems, with back or spinal pain being the most
common chief complaints. They are most likely to see the
adolescent subgroups over 11 years of age as compared to
Additional research is needed in a variety of areas. More
information is needed as to how chiropractic care affects
children, whether practitioners address lifestyle issues,
wellness, and primary prevention along with referral interactions
with other provider groups. Specific research on
safety and direct mechanisms of action are also needed.
No competing financial interests exist for any of the
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