@article{RN380,

title = {The Canadian version of the NIH minimum dataset for chronic low back pain research: reference values from the Quebec Low Back Pain Study},

author = {A. Angarita-Fonseca and M. G. Pag\'{e} and Carolina B. Meloto and Erika Lauren Gentile and Guillaume L\'{e}onard and Hugo Mass\'{e}-Alarie and Iulia Tufa and Jean-S\'{e}bastien Roy and Laura S. Stone and Manon Choini\`{e}re and Maryse Fortin and Mathieu Roy and Monica Sean and Pascal T\'{e}treault and Pierre Rainville and Simon Deslauriers and A. Lacasse},

url = {https://journals.lww.com/pain/Fulltext/2023/02000/The_Canadian_version_of_the_National_Institutes_of.15.aspx},

doi = {10.1097/j.pain.0000000000002703},

issn = {0304-3959},

year  = {2023},

date = {2023-01-21},

urldate = {2023-01-21},

journal = {PAIN},

volume = {64},

issue = {2},

pages = {325-335},

abstract = {The National Institutes of Health (NIH) minimum dataset for chronic low back pain (CLBP) was developed in response to the challenge of standardizing measurements across studies. Although reference values are critical in research on CLBP to identify individuals and communities at risk of poor outcomes such as disability, no reference values have been published for the Quebec (Canada) context. This study was aimed to: 1) provide reference values for the Canadian version of the NIH minimum dataset among individuals with CLBP in Quebec, both overall and stratified by gender, age, and pain impact stratification (PIS) subgroups; and 2) assess the internal consistency of the minimum dataset domains (pain interference (PI), physical function (PF), emotional distress/depression (EDD), sleep disturbance (SD), and PIS score). We included 2847 individuals living with CLBP who completed the baseline web survey of the Quebec Low Back Pain Study (age: 44.0±11.2 years, 48.1% women), and were recruited through social media and health care settings. The mean score was 6.1±1.8 for pain intensity. PI, PF, EDD, SD, and PIS scores were 12.9±4.1, 14.4±3.9, 9.8±4.4, 13.0±3.6, and 26.4±6.6, respectively. EDD showed floor effects. Good to excellent internal consistency was found overall and by language, gender, and age subgroups for all domains (alpha: 0.81-0.93) and poor to excellent internal consistency for PIS subgroups (alpha: 0.59\textendash0.91). This study presents reference values and recommendations for using the Canadian version of the NIH minimum dataset for CLBP that can be useful for researchers and clinicians. },

keywords = {Back pain, Chronic Pain, Low Back Pain, Pain Measurement},

pubstate = {published},

tppubtype = {article}

}

@article{JA0322,

title = {Low back pain definitions: effect on patient inclusion and clinical profiles},

author = {H. Mass\'{e}-Alarie and A. Angarita-Fonseca and A. Lacasse and M. G. Pag\'{e} and P. T\'{e}treault and M. Fortin and L. S. Stone and Roy J. S. and Quebec Low Back Pain Consortium },

editor = {A. Angarita-Fonseca},

url = {https://journals.lww.com/painrpts/Fulltext/2022/04000/Low_back_pain_definitions__effect_on_patient.11.aspx, Pain Reports},

doi = {http://dx.doi.org/10.1097/PR9.0000000000000997},

year  = {2022},

date = {2022-03-22},

urldate = {2022-03-22},

journal = {Pain Reports},

volume = {7},

issue = {2},

pages = {e997},

abstract = {Introduction: 

Numerous definitions of acute low back pain (aLBP) exist. The use of different definitions results in variability in reported prevalence or incidence, conflicting data regarding factors associated with the transition to chronic LBP (cLBP), and hampers comparability among studies.



Objective: 

Here, we compare the impact of 3 aLBP definitions on the number of aLBP cases and participants' characteristics and explore the distribution of participants across definitions.



Methods: 

A sample of 1264 participants from the Quebec Low Back Pain Study was included. Three definitions of aLBP were used: (1) not meeting the National Institutes of Health (NIH) cLBP definition (“nonchronic”), (2) pain beginning \<3 months ago (“acute”), and (3) pain beginning \<3 months with a preceding LBP-free period (“new episode”).



Results: 

There were 847, 842, and 489 aLBP cases meeting the criteria for the 3 definitions, respectively. Participants included in the “nonchronic” had lower pain interference, greater physical function scores, and fewer participants reporting \>5 years of pain than in the other definitions. Half the participants meeting the “acute” definition and one-third of participants meeting the “new episode” definition were also classified as cLBP based on the NIH definition.



Conclusions: 

Our results highlight the importance of the definition used for aLBP. Different definitions influence the sample size and clinical profiles (group's characteristics). We recommended that cohort studies examining the transition from aLBP to cLBP ensure that the definitions selected are mutually exclusive (ie, participants included [aLBP] differ from the expected outcome [cLBP]).},

keywords = {Chronic Pain, Low Back Pain, Musculoskeletal system},

pubstate = {published},

tppubtype = {article}

}

@article{RN3,

title = {Factors associated with non-specific low back pain in children aged 10-12 from Bucaramanga, Colombia: A cross-sectional study},

author = {A. Angarita-Fonseca and M. Boneth-Collante and C. L. Ariza-Garcia and J. Parra-Pati\~{n}o and J. D. Corredor-Vargas and A. P. Villamizar-Ni\~{n}o},

url = {https://content.iospress.com:443/articles/journal-of-back-and-musculoskeletal-rehabilitation/bmr160561, IOS Press

https://angarita-fonseca.com/wp-content/uploads/2020/04/2019Angarita-LBP.pdf, Full text},

doi = {10.3233/BMR-160561},

year  = {2019},

date = {2019-01-01},

urldate = {2019-01-01},

journal = {Journal of Back and Musculoskeletal Rehabilitation},

volume = {32},

number = {5},

pages = {739-747},

abstract = {BACKGROUND: There are no Colombian studies published that assess non-specific low back pain (NSLBP) risk factors in children. OBJECTIVE: To determine the factors associated with NSLBP in 73 children (19.2% girls) aged 10\textendash12 years in one military school in Bucaramanga, Colombia. METHODS: A questionnaire was used to obtain information of risk factors. Subsequently, children’s weight and height were measured. The backpack was weighed at the beginning of each day from Monday to Friday. Crude and adjusted prevalence ratios were calculated, with their respective 95% confidence interval (CI). RESULTS: The one-month prevalence of NSLBP was 39.7% (95% CI 28.4\textendash51.9). In the multivariate analysis, carrying backpacks wearing between 12% and 20% of body weight, having a perception that the backpack is very heavy, and being a passive smoker increase the likelihood of NSLBP, while being 11-year-old compared to 10-year-old decreases the likelihood of having NSLBP, adjusted for gender, body mass index, and history of LBP in parents. CONCLUSIONS: High prevalence of low back pain was found in children between 10 and 12 years old. The study of the decisive factors of low back pain is important to identify children at risk, as well as to develop efficient primary prevention programs.},

key = {Backpack, children, low back pain, risk factors},

keywords = {Backpack, Children, Low Back Pain, Musculoskeletal system},

pubstate = {published},

tppubtype = {article}

}

@article{RN1,

title = {Stable prevalence of chronic back disorders across gender, age, residence, and physical activity in Canadian adults from 2007 to 2014},

author = {A. Angarita-Fonseca and C. Trask and T. Shah and B. Bath},

url = {https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-019-7395-8},

doi = {10.1186/s12889-019-7395-8},

year  = {2019},

date = {2019-01-01},

urldate = {2019-01-01},

journal = {BMC Public Health},

volume = {19},

number = {1},

pages = {1121},

abstract = {Background: Chronic back disorders (CBD) are a global health problem and the leading cause of years lived with disability. The present study aims to examine overall and specific trends in CBD in the Canadian population aged 18 to 65 years.



Methods: Data from the Canadian Community Health Survey (CCHS), a cross-sectional study, from 2007 to 2014 (8 cycles) were used to calculate CBD prevalence across gender, age, geographical area (urban/rural and ten provinces and northern territories), and physical activity levels. CBD was defined in the CCHS as having back problems, excluding fibromyalgia and arthritis, which have lasted or are expected to last six months or more and that have been diagnosed by a health professional. Prevalence of CBD using survey weights and associated 95% confidence intervals (95% CI) were calculated yearly using balanced repeated replications technique. Trend tests were calculated using joinpoint regressions; ArcGIS software was used for mapping.



Results: Age-standardized CBD prevalence in 2007 and 2014 were 18.9% (95% CI = 18.4;19.5) and 17.8% (95% CI = 17.2,18.4), respectively. CBD prevalence was consistently higher in women, older age groups, rural dwellers, and people classified as inactive. Crude and age-standardized CBD prevalence decreased faster in people classified as physically active compared to those who were inactive (p \< 0.006). Although CBD slightly decreased over time, no statistically significant trends were found overall or by gender, area of residence, province or level of physical activity. The prevalence of CBD remained consistently high in the province of Nova Scotia, and consistently low in the province of Quebec over the eight CCHS cycles.



Conclusion: Despite prevention efforts, such as the Canadian back pain mass media campaign, CBD prevalence has remained stable between 2007 and 2014. Tailored prevention and management of CBD should consider gender, age, and geographical differences. Further longitudinal studies could elucidate the temporal relationship between potentially modifiable risk factors such as physical activity and CBD.},

keywords = {Back pain, Epidemiology, Joinpoint, Low Back Pain, Musculoskeletal system, Prevalence, Regression analysis, Spine, Trends},

pubstate = {published},

tppubtype = {article}

}

@article{RN41,

title = {Reliability of a questionnaire to determine non-specific low back pain and its characteristics in school children aged 7 to 12 years},

author = {A. Angarita-Fonseca and C. L. Ariza-Garcia and M. C. Villamizar-Garc\'{i}a},

url = {https://www.resed.es/Documentos/ArticulosNew/02original1.pdf},

year  = {2013},

date = {2013-01-01},

urldate = {2013-01-01},

journal = {Revista de la Sociedad Espanola del Dolor},

volume = {20},

number = {5},

pages = {207-215},

abstract = {Objective: To assess the test-retest reliability of a questionnaire to determine nonspecific low back pain (NLBP) and its characteristics in schoolchildren aged 7 to 12 years.



Methodology: An evaluation of diagnostic technologies was done in 84 schoolchildren (9.2 ± 1.6 years), 50 % girls, selected for convenience. The questionnaire was administered by individual interview, twice, with an interval of 2 to 4 days. We calculated the Intraclass Correlation Coefficient (CCI 2.1) to quantitative variables and Cohen ´s and Weighted Kappa Index to qualitative variables with their respective confidence intervals at 95 % (CI95 %).



Results: The prevalence was 20.2 % and 17.9 % in the first and second evaluations, respectively. The reliability of the questions that determine the prevalence of NLBP was very good (k = 0.85, 95 % CI 0.69 - 1.00, n = 84); The number of days with NLBP in the last month got fair reliability (CCI = 0.36; 95 % CI -0.009-0.70), while the duration asked by four categories of response was very good (k = 1.00; IC95 % 1.00-1.00), the intensity assessed by Wong-Baker Faces Pain Rating Scale was very good (ICC = 0.82, 95 % CI 0.54 - 0.93). In relation to consulting a professional for back pain, Kappa indices ranged from k = 0.46 and k = 1.0. In the second evaluation, the children showed a shorter duration of pain (3.9 days) and lower intensity (2.0).



Discussion: The importance of reliability evaluation of the questionnaire to determine DLI and its characteristics is that there can be a valid measure unless the measure has some degree of reliability. The questionnaire to determine NLBP and their characteristics in schoolchildren aged 7 to 12 years are sufficiently reproducible for use in population studies.},

key = {Low back pain, Questionnaires, Reliability, Child, Pain Measurement},

keywords = {Children, Low Back Pain, Pain Measurement, Questionnaires, Reliability, Reproducibility of Results},

pubstate = {published},

tppubtype = {article}

}