In: Twin research and human genetics: the official journal of the International Society for Twin Studies (ISTS) and the Human Genetics Society of Australasia, Band 9, Heft 2, S. 198-204
AbstractExperimental studies have suggested biological factors as a possible explanation for gender disparities in perception of pain. Recently, heritability of liability to neck pain (NP) has been found to be statistically significantly larger in women compared to men. However, no studies have been conducted to determine whether the sex differences in heritability of NP are due to sex-specific genetic factors. Data on lifetime prevalence of NP from a populationbased cross-sectional survey of 33,794 Danish twins were collected and age-stratified univariate biometrical modeling using sex-limitation models was performed based on 10,605 dizygotic (DZ) twins of opposite sex to estimate the qualitative sex differences. In a full sex-limitation model the genetic component in females were higher than in males, but the genetic and the shared environmental correlations were equal to what is normally assumed between same-sex DZ twins. A 'no-sex-effects' model showed the overall best model fit which confirms absence of sex-related gene interaction. The age-stratified sex-limitation models showed similar results. Thus, there is no evidence for a sex-specific genetic influence in the liability of heritability of NP.
In: Ferreira , G , Costa , L M , Stein , A , Hartvigsen , J , Buchbinder , R & Maher , C G 2019 , ' Tackling low back pain in Brazil : a wake-up call ' , Brazilian Journal of Physical Therapy , vol. 23 , no. 3 , pp. 189-195 . https://doi.org/10.1016/j.bjpt.2018.10.001
Background: Low back pain is the leading cause of years lived with disability in Brazil based upon Global Burden of Disease estimates. Since 1990, the number of years lived with disability has increased by 79.7%, and this number is expected to continue to rise due to population growth and ageing. Yet, similarly to other countries, little attention has been given to it in both the public and private health systems, arguably making it an overlooked epidemic in Brazil. There is evidence that Brazil has adopted unwarranted practices in the management of low back pain in a similar manner to what has been observed in high-income countries. To tackle the burden of low back pain in Brazil, we need highly coordinated efforts from government, the private sector, universities, health workers and civil society. Objective: This masterclass intends to provide an overview of the challenges faced by Brazil in relation to low back pain management and propose potential solutions that could potentially be implemented based on experiences reported in the literature.
In: Riis , A , Hjelmager , M D , Vinther , D L , Rathleff , S M , Hartvigsen , J & Bach Jensen , M 2018 , ' Preferences for Web-Based Information Material for Low Back Pain : Qualitative Interview Study on People Consulting a General Practitioner ' , JMIR Rehabilitation Assistive Technologies , vol. 5 , no. 1 , e7 , pp. e7 . https://doi.org/10.2196/rehab.8841
Background: Information on self-management, including addressing people?s fears and concerns, are core aspects of managing patients with low back pain (LBP). Web apps with patient information may be used to extend patient-physician consultations and encourage self-management outside of the consultation room. It is, however, important to identify the end users? needs and preferences in order to maximize acceptance. Objective: The aim of this study was to identify preferences for the content, design, and functionality of a Web app with evidence-based information and advice for people with LBP in Denmark. Methods: This is a phenomenological qualitative study. Adults who had consulted their general practitioner because of LBP within the past 14 days were included. Each participated in a semistructured interview, which was audiotaped and transcribed for text condensation. Interviews were conducted at the participant?s home by 2 interviewers. Participants also completed a questionnaire that requested information on age, gender, internet usage, interest in searching new knowledge, LBP-related function, and pain. Results: Fifteen 45-min interviews were conducted. Participants had a median age of 40 years (range 22-68 years) and reported a median disability of 7 points (range 0-18) using the 23-item Roland Morris Disability Questionnaire. Participants reported that Web-based information should be easy to find and read, easily overviewed, and not be overloaded with information. Subjects found existing Web-based information confusing, often difficult to comprehend, and not relevant for them, and they questioned the motives driving most hosting companies or organizations. The Patient Handbook, a Danish government-funded website that provides information to Danes about health, was mentioned as a trustworthy and preferred site when searching for information and advice regarding LBP. Conclusions: This study identified important issues to consider when developing and supplementing existing general practice treatment with ...
In: Riis , A , Hjelmager , D M , Vinther , L D , Rathleff , M S , Hartvigsen , J & Jensen , M B 2018 , ' Preferences for Web-Based Information Material for Low Back Pain : Qualitative Interview Study on People Consulting a General Practitioner ' , JMIR rehabilitation and assistive technologies , vol. 5 , no. 1 , e7 . https://doi.org/10.2196/rehab.8841
BACKGROUND: Information on self-management, including addressing people's fears and concerns, are core aspects of managing patients with low back pain (LBP). Web apps with patient information may be used to extend patient-physician consultations and encourage self-management outside of the consultation room. It is, however, important to identify the end users' needs and preferences in order to maximize acceptance. OBJECTIVE: The aim of this study was to identify preferences for the content, design, and functionality of a Web app with evidence-based information and advice for people with LBP in Denmark. METHODS: This is a phenomenological qualitative study. Adults who had consulted their general practitioner because of LBP within the past 14 days were included. Each participated in a semistructured interview, which was audiotaped and transcribed for text condensation. Interviews were conducted at the participant's home by 2 interviewers. Participants also completed a questionnaire that requested information on age, gender, internet usage, interest in searching new knowledge, LBP-related function, and pain. RESULTS: Fifteen 45-min interviews were conducted. Participants had a median age of 40 years (range 22-68 years) and reported a median disability of 7 points (range 0-18) using the 23-item Roland Morris Disability Questionnaire. Participants reported that Web-based information should be easy to find and read, easily overviewed, and not be overloaded with information. Subjects found existing Web-based information confusing, often difficult to comprehend, and not relevant for them, and they questioned the motives driving most hosting companies or organizations. The Patient Handbook, a Danish government-funded website that provides information to Danes about health, was mentioned as a trustworthy and preferred site when searching for information and advice regarding LBP. CONCLUSIONS: This study identified important issues to consider when developing and supplementing existing general practice treatment with Web-based information and advice for patients with LBP. Development of a Web app should consider patient input, and developers should carefully address the following domains: readability, customization, design, credibility, and usability.
BACKGROUND: In the midst of the coronavirus pandemic, the International Chiropractors Association (ICA) posted reports claiming that chiropractic care can impact the immune system. These claims clash with recommendations from the World Health Organization and World Federation of Chiropractic. We discuss the scientific validity of the claims made in these ICA reports. MAIN BODY: We reviewed the two reports posted by the ICA on their website on March 20 and March 28, 2020. We explored the method used to develop the claim that chiropractic adjustments impact the immune system and discuss the scientific merit of that claim. We provide a response to the ICA reports and explain why this claim lacks scientific credibility and is dangerous to the public. More than 150 researchers from 11 countries reviewed and endorsed our response. CONCLUSION: In their reports, the ICA provided no valid clinical scientific evidence that chiropractic care can impact the immune system. We call on regulatory authorities and professional leaders to take robust political and regulatory action against those claiming that chiropractic adjustments have a clinical impact on the immune system.
In: Côté , P , Bussières , A , Cassidy , J D , Hartvigsen , J , Kawchuk , G N , Leboeuf-Yde , C , Mior , S , Schneider , M & 140 signatories# call for an end to pseudoscientific claims on the effect of chiropractic care on immune function 2020 , ' A united statement of the global chiropractic research community against the pseudoscientific claim that chiropractic care boosts immunity ' , Chiropractic and Manual Therapies , vol. 28 , no. 1 , 21 . https://doi.org/10.1186/s12998-020-00312-x
Background: In the midst of the coronavirus pandemic, the International Chiropractors Association (ICA) posted reports claiming that chiropractic care can impact the immune system. These claims clash with recommendations from the World Health Organization and World Federation of Chiropractic. We discuss the scientific validity of the claims made in these ICA reports. Main body: We reviewed the two reports posted by the ICA on their website on March 20 and March 28, 2020. We explored the method used to develop the claim that chiropractic adjustments impact the immune system and discuss the scientific merit of that claim. We provide a response to the ICA reports and explain why this claim lacks scientific credibility and is dangerous to the public. More than 150 researchers from 11 countries reviewed and endorsed our response. Conclusion: In their reports, the ICA provided no valid clinical scientific evidence that chiropractic care can impact the immune system. We call on regulatory authorities and professional leaders to take robust political and regulatory action against those claiming that chiropractic adjustments have a clinical impact on the immune system.
In: Twin research and human genetics: the official journal of the International Society for Twin Studies (ISTS) and the Human Genetics Society of Australasia, Band 19, Heft 5, S. 502-509
Low back pain (LBP) is a major health problem globally, but approaches to prevention are not yet clearly identified because modifiable risk factors are not well established. Although physical activity is one promising modifiable risk factor, it is still not known what types and doses of physical activity are protective or harmful for LBP. The aim of this study is to establish the feasibility of a definitive cohort study that will investigate the effects of different types and doses of physical activity on the risk of developing recurrent LBP while accounting for genetic factors. This will be a pilot longitudinal twin study and twins will be recruited from the Australian Twin Registry, and will be followed over 1 year. Thirty adult complete twin pairs with a history of LBP, but symptom free at recruitment, will be included. Data on physical activity (predictor) will be collected using four questionnaires and an objective measure (accelerometer) at baseline and at 6-month follow-up. Twins will also complete an additional physical activity questionnaire monthly. Data on LBP (outcome) will be collected at baseline and weekly. Data will be collected using short message service (SMS) and email. We will keep records of the recruitment rate, follow-up rate, and completeness of data. Barriers to completing the study will be investigated. The results of this study will inform the design and implementation of a future definitive study, which will help to clarify the effects of different types and doses of physical activity on the risk of developing recurrent LBP.
Abstract While low back pain (LBP) may persist or recur over time, few studies have evaluated the individual course of LBP over a long-term period, particularly among older adults. Based on data from the longitudinal Osteoporotic Fractures in Men (MrOS) study, we aimed to identify and describe different LBP trajectories in older men and characterize members in each trajectory group. A total of 5,976 community-dwelling men (mean age=74.2) enrolled at six US sites were analyzed. Participants self-reported LBP (yes/no) every 4 months during a maximum of 10 years. Latent class growth modelling was performed to identify unique LBP trajectory groups that explained variation in the LBP data. The association of baseline characteristics with trajectory group membership was assessed using univariable and multivariable multinominal logistic regression. A five-class solution was chosen; no/rare LBP (n=2442/40.9%), low frequency–stable LBP (n=1040/17.4%), low frequency-increasing LBP (n=719/12%), moderate frequency-decreasing LBP (n=745/12.5%) and high frequency–stable LBP (n=1030/17.2%). History of falls (OR=1.52), history of LBP (OR=6.37), higher physical impairment (OR=1.51-2.85) and worse psychological function (OR=1.41-1.62) at baseline were all associated with worse LBP trajectory groups in this sample of older men. These findings present an opportunity for targeted interventions and/or management to older men with worse or increasing LBP trajectories and associated modifiable risk factors, to reduce the impact of LBP and improve quality of life.
In: Haldeman , S , Nordin , M , Tavares , P , Mullerpatan , R , Kopansky-Giles , D , Setlhare , V , Chou , R , Hurwitz , E , Treanor , C , Hartvigsen , J , Schneider , M , Gay , R , Moss , J , Haldeman , J , Gryfe , D , Wilkey , A , Brown , R , Outerbridge , G , Eberspaecher , S , Carroll , L , Engelbrecht , R , Graham , K , Cashion , N , Ince , S & Moon , E 2021 , ' Distance management of spinal disorders during the COVID-19 pandemic and beyond : Evidence-based patient and clinician guides from the global spine care initiative ' , JMIR public health and surveillance , vol. 7 , no. 2 , e25484 . https://doi.org/10.2196/25484
Background: The COVID-19 pandemic has greatly limited patients' access to care for spine-related symptoms and disorders. However, physical distancing between clinicians and patients with spine-related symptoms is not solely limited to restrictions imposed by pandemic-related lockdowns. In most low- and middle-income countries, as well as many underserved marginalized communities in high-income countries, there is little to no access to clinicians trained in evidence-based care for people experiencing spinal pain. Objective: The aim of this study is to describe the development and present the components of evidence-based patient and clinician guides for the management of spinal disorders where in-person care is not available. Methods: Ultimately, two sets of guides were developed (one for patients and one for clinicians) by extracting information from the published Global Spine Care Initiative (GSCI) papers. An international, interprofessional team of 29 participants from 10 countries on 4 continents participated. The team included practitioners in family medicine, neurology, physiatry, rheumatology, psychology, chiropractic, physical therapy, and yoga, as well as epidemiologists, research methodologists, and laypeople. The participants were invited to review, edit, and comment on the guides in an open iterative consensus process. Results: The Patient Guide is a simple 2-step process. The first step describes the nature of the symptoms or concerns. The second step provides information that a patient can use when considering self-care, determining whether to contact a clinician, or considering seeking emergency care. The Clinician Guide is a 5-step process: (1) Obtain and document patient demographics, location of primary clinical symptoms, and psychosocial information. (2) Review the symptoms noted in the patient guide. (3) Determine the GSCI classification of the patient's spine-related complaints. (4) Ask additional questions to determine the GSCI subclassification of the symptom pattern. (5) Consider appropriate treatment interventions. Conclusions: The Patient and Clinician Guides are designed to be sufficiently clear to be useful to all patients and clinicians, irrespective of their location, education, professional qualifications, and experience. However, they are comprehensive enough to provide guidance on the management of all spine-related symptoms or disorders, including triage for serious and specific diseases. They are consistent with widely accepted evidence-based clinical practice guidelines. They also allow for adequate documentation and medical record keeping. These guides should be of value during periods of government-mandated physical or social distancing due to infectious diseases, such as during the COVID-19 pandemic. They should also be of value in underserved communities in high-, middle-, and low-income countries where there is a dearth of accessible trained spine care clinicians. These guides have the potential to reduce the overutilization of unnecessary and expensive interventions while empowering patients to self-manage uncomplicated spinal pain with the assistance of their clinician, either through direct in-person consultation or via telehealth communication.
In: Côté , P , Hartvigsen , J , Leboeuf-Yde , C , Corso , M , Shearer , H , Wong , J , Marchand , A-A , French , S , Kawchuk , G N , Mior , S , Poulsen , E , Srbely , J , Ammendolia , C , Blanchette , M-A , Busse , J W , Bussières , A , Cancelliere , C , Christensen , H W , De Carvalho , D , De Luca , K , Du Rose , A , Eklund , A , Engel , R , Goncalves , G , Hebert , J , Hincapié , C A , Kimpton , A , Lauridsen , H H , Innes , S , Meyer , A-L , Newell , D , O'Neill , S , Pagé , I , Passmore , S , Perle , S M , Quon , J , Rezai , M , Stupar , M , Swain , M , Vitello , A , Weber , K , Young , K J & Yu , H 2021 , ' The global summit on the efficacy and effectiveness of spinal manipulative therapy for the prevention and treatment of non-musculoskeletal disorders: a systematic review of the literature ' , Chiropractic & Manual Therapies , vol. 29 , 8 . https://doi.org/10.1186/s12998-021-00362-9
Background: A small proportion of chiropractors, osteopaths, and other manual medicine providers use spinal manipulative therapy (SMT) to manage non-musculoskeletal disorders. However, the efficacy and effectiveness of these interventions to prevent or treat non-musculoskeletal disorders remain controversial. Objectives: We convened a Global Summit of international scientists to conduct a systematic review of the literature to determine the efficacy and effectiveness of SMT for the primary, secondary and tertiary prevention of non-musculoskeletal disorders. Global summit: The Global Summit took place on September 14–15, 2019 in Toronto, Canada. It was attended by 50 researchers from 8 countries and 28 observers from 18 chiropractic organizations. At the summit, participants critically appraised the literature and synthesized the evidence. Systematic review of the literature: We searched MEDLINE, Embase, the Cochrane Central Register of Controlled Trials, the Cumulative Index to Nursing and Allied Health, and the Index to Chiropractic Literature from inception to May 15, 2019 using subject headings specific to each database and free text words relevant to manipulation/manual therapy, effectiveness, prevention, treatment, and non-musculoskeletal disorders. Eligible for review were randomized controlled trials published in English. The methodological quality of eligible studies was assessed independently by reviewers using the Scottish Intercollegiate Guidelines Network (SIGN) criteria for randomized controlled trials. We synthesized the evidence from articles with high or acceptable methodological quality according to the Synthesis without Meta-Analysis (SWiM) Guideline. The final risk of bias and evidence tables were reviewed by researchers who attended the Global Summit and 75% (38/50) had to approve the content to reach consensus. Results: We retrieved 4997 citations, removed 1123 duplicates and screened 3874 citations. Of those, the eligibility of 32 articles was evaluated at the Global Summit and 16 articles were included in our systematic review. Our synthesis included six randomized controlled trials with acceptable or high methodological quality (reported in seven articles). These trials investigated the efficacy or effectiveness of SMT for the management of infantile colic, childhood asthma, hypertension, primary dysmenorrhea, and migraine. None of the trials evaluated the effectiveness of SMT in preventing the occurrence of non-musculoskeletal disorders. Consensus was reached on the content of all risk of bias and evidence tables. All randomized controlled trials with high or acceptable quality found that SMT was not superior to sham interventions for the treatment of these non-musculoskeletal disorders. Six of 50 participants (12%) in the Global Summit did not approve the final report. Conclusion: Our systematic review included six randomized clinical trials (534 participants) of acceptable or high quality investigating the efficacy or effectiveness of SMT for the treatment of non-musculoskeletal disorders. We found no evidence of an effect of SMT for the management of non-musculoskeletal disorders including infantile colic, childhood asthma, hypertension, primary dysmenorrhea, and migraine. This finding challenges the validity of the theory that treating spinal dysfunctions with SMT has a physiological effect on organs and their function. Governments, payers, regulators, educators, and clinicians should consider this evidence when developing policies about the use and reimbursement of SMT for non-musculoskeletal disorders.
Abstract Background A small proportion of chiropractors, osteopaths, and other manual medicine providers use spinal manipulative therapy (SMT) to manage non-musculoskeletal disorders. However, the efficacy and effectiveness of these interventions to prevent or treat non-musculoskeletal disorders remain controversial. Objectives We convened a Global Summit of international scientists to conduct a systematic review of the literature to determine the efficacy and effectiveness of SMT for the primary, secondary and tertiary prevention of non-musculoskeletal disorders. Global summit The Global Summit took place on September 14–15, 2019 in Toronto, Canada. It was attended by 50 researchers from 8 countries and 28 observers from 18 chiropractic organizations. At the summit, participants critically appraised the literature and synthesized the evidence. Systematic review of the literature We searched MEDLINE, Embase, the Cochrane Central Register of Controlled Trials, the Cumulative Index to Nursing and Allied Health, and the Index to Chiropractic Literature from inception to May 15, 2019 using subject headings specific to each database and free text words relevant to manipulation/manual therapy, effectiveness, prevention, treatment, and non-musculoskeletal disorders. Eligible for review were randomized controlled trials published in English. The methodological quality of eligible studies was assessed independently by reviewers using the Scottish Intercollegiate Guidelines Network (SIGN) criteria for randomized controlled trials. We synthesized the evidence from articles with high or acceptable methodological quality according to the Synthesis without Meta-Analysis (SWiM) Guideline. The final risk of bias and evidence tables were reviewed by researchers who attended the Global Summit and 75% (38/50) had to approve the content to reach consensus. Results We retrieved 4997 citations, removed 1123 duplicates and screened 3874 citations. Of those, the eligibility of 32 articles was evaluated at the Global Summit and 16 articles were included in our systematic review. Our synthesis included six randomized controlled trials with acceptable or high methodological quality (reported in seven articles). These trials investigated the efficacy or effectiveness of SMT for the management of infantile colic, childhood asthma, hypertension, primary dysmenorrhea, and migraine. None of the trials evaluated the effectiveness of SMT in preventing the occurrence of non-musculoskeletal disorders. Consensus was reached on the content of all risk of bias and evidence tables. All randomized controlled trials with high or acceptable quality found that SMT was not superior to sham interventions for the treatment of these non-musculoskeletal disorders. Six of 50 participants (12%) in the Global Summit did not approve the final report. Conclusion Our systematic review included six randomized clinical trials (534 participants) of acceptable or high quality investigating the efficacy or effectiveness of SMT for the treatment of non-musculoskeletal disorders. We found no evidence of an effect of SMT for the management of non-musculoskeletal disorders including infantile colic, childhood asthma, hypertension, primary dysmenorrhea, and migraine. This finding challenges the validity of the theory that treating spinal dysfunctions with SMT has a physiological effect on organs and their function. Governments, payers, regulators, educators, and clinicians should consider this evidence when developing policies about the use and reimbursement of SMT for non-musculoskeletal disorders.
In: Côté , P , Bussières , A , Cassidy , J D , Hartvigsen , J , Kawchuk , G N , Leboeuf-Yde , C , Mior , S , Schneider , M , Aillet , L , Ammendolia , C , Arnbak , B , Axen , I , Baechler , M , Barbier-Cazorla , F , Barbier , G , Bergstrøm , C , Beynon , A , Blanchette , M A , Bolton , P S , Breen , A , Brinch , J , Bronfort , G , Brown , B , Bruno , P , Konner , M B , Burrell , C , Busse , J W , Byfield , D , Campello , M , Cancelliere , C , Carroll , L , Cedraschi , C , Chéron , C , Chow , N , Christensen , H W , Claussen , S , Corso , M , Davis , M A , Demortier , M , De Carvalho , D , De Luca , K , De Zoete , A , Doktor , K , Downie , A , Du Rose , A , Eklund , A , Engel , R , Erwin , M , Eubanks , J E , Evans , R , Evans , W , Fernandez , M , Field , J , Fournier , G , French , S , Fuglkjaer , S , Gagey , O , Giuriato , R , Gliedt , J A , Goertz , C , Goncalves , G , Grondin , D , Gurden , M , Haas , M , Haldeman , S , Harsted , S , Hartvigsen , L , Hayden , J , Hincapié , C , Hébert , J J , Hesby , B , Hestbæk , L , Hogg-Johnson , S , Hondras , M A , Honoré , M , Howarth , S , Injeyan , H S , Innes , S , Irgens , P M , Jacobs , C , Jenkins , H , Jenks , A , Jensen , T S , Johhansson , M , Kongsted , A , Kopansky-Giles , D , Kryger , R , Lardon , A , Lauridsen , H H , Leininger , B , Lemeunier , N , Le Scanff , C , Lewis , E A , Linaker , K , Lothe , L , Marchand , A A , McNaughton , D , Meyer , A L , Miller , P , Mølgaard , A , Moore , C , Murphy , D R , Myburgh , C , Myhrvold , B , Newell , D , Newton , G , Nim , C , Nordin , M , Nyiro , L , O'Neill , S , Øverås , C , Pagé , I , Pasquier , M , Penza , C W , Perle , S M , Picchiottino , M , Piché , M , Poulsen , E , Quon , J , Raven , T , Rezai , M , Roseen , E J , Rubinstein , S , Salmi , L R , Schweinhardt , P , Shearer , H M , Sirucek , L , Sorondo , D , Stern , P J , Stevans , J , Stochkendahl , M J , Stuber , K , Stupar , M , Srbely , J , Swain , M , Teodorczyk-Injeyan , J , Théroux , J , Thiel , H , Uhrenholt , L , Verbeek , A , Verville , L , Vincent , K , Dan Wang , A L , Weber , K A , Whedon , J M , Wong , J , Wuytack , F , Young , J , Yu , H & Ziegler , D 2020 , ' A united statement of the global chiropractic research community against the pseudoscientific claim that chiropractic care boosts immunity ' , Chiropractic and Manual Therapies , vol. 28 , no. 1 , 21 . https://doi.org/10.1186/s12998-020-00312-x
Background: In the midst of the coronavirus pandemic, the International Chiropractors Association (ICA) posted reports claiming that chiropractic care can impact the immune system. These claims clash with recommendations from the World Health Organization and World Federation of Chiropractic. We discuss the scientific validity of the claims made in these ICA reports. Main body: We reviewed the two reports posted by the ICA on their website on March 20 and March 28, 2020. We explored the method used to develop the claim that chiropractic adjustments impact the immune system and discuss the scientific merit of that claim. We provide a response to the ICA reports and explain why this claim lacks scientific credibility and is dangerous to the public. More than 150 researchers from 11 countries reviewed and endorsed our response. Conclusion: In their reports, the ICA provided no valid clinical scientific evidence that chiropractic care can impact the immune system. We call on regulatory authorities and professional leaders to take robust political and regulatory action against those claiming that chiropractic adjustments have a clinical impact on the immune system.