Low Back PainNCT04071522
Validation of the Back Beliefs Questionnaire to the Turkish
An observational study of Low Back Pain, run by Bezmialem Vakif University at 1 site in Turkey (Türkiye).
Trial summary
The Back Beliefs Questionnaire (BBQ) developed by Symonds et al. in 1996 is used to measure patient's attitudes and beliefs towards recovery and return-to-work; and expectations regarding the negative circumstances that could be created as a result of low back pain (LBP).The aim of this study was the translation to… Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Low Back Pain
- How many people
- 110 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Jun 2018to 12 Feb 2019
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients who consulted to our Physical Medicine and Rehabilitation clinic during the period between June 2018 and April 2018; and volunteered to participate in this study were evaluated.
Who may be able to join
- Turkish speaking
- Suffering from low back pain during activity for over 3 months
Who cannot join
- pregnancy
- malignancy
- infections
- fractures
- inflammatory diseases
- cognitive impairments that might create a problem in comprehending and filling the survey
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Cross-Cultural Adaptation and Validation of the Back Beliefs Questionnaire to the Turkish Language
The Back Beliefs Questionnaire (BBQ) developed by Symonds et al. in 1996 is used to measure patient's attitudes and beliefs towards recovery and return-to-work; and expectations regarding the negative circumstances that could be created as a result of low back pain (LBP).The aim of this study was the translation to Turkish language, cross-cultural adaptation and assessment of reliability\&validity of BBQ for the patients suffering from chronic LBP.
Read the detailed description
Back Beliefs Questionnaire was translated and culturally adapted into Turkish regarding to the published guidelines. This observational cross-sectional study was performed with 110 chronic low back pain patients. All participants were asked to complete Back Beliefs Questionnaire and also fill the socio-demographic data form and evaluation tools (Numeric rating scale-pain, Oswestry Disability Index, Fear Avoidance Beliefs Questionnaire, Hospital Anxiety and Depression Scale). Internal consistency was evaluated with Cronbach's alfa coefficient. Intraclass correlation coefficient was used to assess test-retest reliability. Structural validity was assessed by correlations with other tools.
Back Beliefs Questionnaire had a good internal consistency (Cronbach alfa= 0.79) and an excellent test-retest reliability (Intraclass correlation coefficient = 0.84). A moderate correlation was determined between Back Beliefs Questionnaire and Fear Avoidance Beliefs Questionnaire. Correlations with Numeric rating scale-pain, Oswestry Disability Index, Hospital Anxiety and Depression Scale were fair.
Turkish version of Back Beliefs Questionnaire is a valid and reliable questionnaire that can be used to evaluate beliefs about pain in patients with chronic low back pain.
- Conditions
- Low Back Pain
- Being tested
- no intervention
- Keywords
- low back pain, turkish language, pain beliefs, validity
- Medical subject headings
- Low Back Pain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
no interventionOther
no intervention
| Study group | Role | What they receive |
|---|---|---|
| LBP | 110 literate Turkish speaking patients suffering from low back pain (LBP) for over 3 months, within the age range 18-65 were included in the study. Receives: Other: no intervention |
What is being measured
The primary outcome is the main question the study is designed to answer.
Back Beliefs Questionnaire
BBQ was designed to evaluate patients' LBP and their expectations regarding the negative outcomes that might be inflicted on their future; and their attitude towards return-to-work.BBQ consists of 14 items to be filled in by patients. Nine of which are used to evaluate inevitability (1st, 2nd, 3rd, 6th, 8th, 10th, 12th, 13th, 14th) and the other 5 are distractors (4th, 5th, 7th, 9th, 11th). All items are evaluated on a 5-point-Likert Scale that referred to "1-Definitely Disagree" and "5-Definitely Agree". Scoring is calculated over the expressions included in the inevitability measure by reversing the numerical values which are appointed by the participants. The resulting score is between 9 and 45. Lower scores supports the more incompatible and pessimistic beliefs.
Measured: 10 minutes
Numeric Rating Scale-Pain
Numeric Rating Scale-Pain is a scale with good sensitivity that quantitatively evaluates the pain intensity, which is easily comparable to other pain scales. The patient defines pain level within a range of 1 to 10. 1 point represents the minumum pain level, while 10 indicates the most severe pain.
Measured: 2 minutes
Oswestry Disability Index
Oswestry Disability Index is a scale that assesses the functional disability level associated with LBP. It consists of 10 items that each have 6 options, which are scored between 0-5. The patient's total score is divided by the maximum possible score and multiplied by 100; and a percentage score is thus attained. The resulting score is between 0 and 100. As the total score increases, the level of functional disability also increases
Measured: 5 minutes
Fear Avoidance Beliefs Questionnaire
Fear Avoidance Beliefs Questionnaire evaluates the physical activity and work related beliefs of fear and avoidance that arise in patients with LBP. It consists of two subscales (physical activity and work) and 16 questions in total.The patient rates their agreement with each statement on a 7-point Likert scale. Where 0= completely disagree, 6=completely agree. There is a maximum score of 96. A higher score indicates more strongly held fear avoidance beliefs.
Measured: 3 minutes
Hospital Anxiety and Depression Scale
The Hospital Anxiety and Depression Scale is a frequently used self-rating scale developed to assess psychological distress in non-psychiatric patients. The questionnaire comprises seven questions for anxiety and seven questions for depression. HADS scores were interpreted as follows for each subscale: mild=8-10, modarate=11-14, severe=15-21.
Measured: 3 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Aug 2019
- Study start1 Jun 2018
- Primary completion12 Feb 2019
- Study completion12 Feb 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (22)Papers the sponsor has linked to this study.
- Other trials for Low Back PainStudies of the same condition, open and under way.
- More trials run by Bezmialem Vakif UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Prospective
- Enrolment
- 110 participants (actual)
Sponsor and investigators
- Lead sponsor
- Bezmialem Vakif University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04071522
- Sponsor's protocol ID
- 050.05.04.05.01
- Status last verified
- Aug 2019
- First submitted
- 23 Aug 2019
- Last updated
- 28 Aug 2019
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Data will not be shared.
Publications
Freburger JK, Holmes GM, Agans RP, Jackman AM, Darter JD, Wallace AS, Castel LD, Kalsbeek WD, Carey TS. The rising prevalence of chronic low back pain. Arch Intern Med. 2009 Feb 9;169(3):251-8. doi: 10.1001/archinternmed.2008.543.
PubMed 19204216Meucci RD, Fassa AG, Paniz VM, Silva MC, Wegman DH. Increase of chronic low back pain prevalence in a medium-sized city of southern Brazil. BMC Musculoskelet Disord. 2013 May 1;14:155. doi: 10.1186/1471-2474-14-155.
PubMed 23634830Vos T, Flaxman AD, Naghavi M, Lozano R, Michaud C, Ezzati M, Shibuya K, Salomon JA, Abdalla S, Aboyans V, Abraham J, Ackerman I, Aggarwal R, Ahn SY, Ali MK, Alvarado M, Anderson HR, Anderson LM, Andrews KG, Atkinson C, Baddour LM, Bahalim AN, Barker-Collo S, Barrero LH, Bartels DH, Basanez MG, Baxter A, Bell ML, Benjamin EJ, Bennett D, Bernabe E, Bhalla K, Bhandari B, Bikbov B, Bin Abdulhak A, Birbeck G, Black JA, Blencowe H, Blore JD, Blyth F, Bolliger I, Bonaventure A, Boufous S, Bourne R, Boussinesq M, Braithwaite T, Brayne C, Bridgett L, Brooker S, Brooks P, Brugha TS, Bryan-Hancock C, Bucello C, Buchbinder R, Buckle G, Budke CM, Burch M, Burney P, Burstein R, Calabria B, Campbell B, Canter CE, Carabin H, Carapetis J, Carmona L, Cella C, Charlson F, Chen H, Cheng AT, Chou D, Chugh SS, Coffeng LE, Colan SD, Colquhoun S, Colson KE, Condon J, Connor MD, Cooper LT, Corriere M, Cortinovis M, de Vaccaro KC, Couser W, Cowie BC, Criqui MH, Cross M, Dabhadkar KC, Dahiya M, Dahodwala N, Damsere-Derry J, Danaei G, Davis A, De Leo D, Degenhardt L, Dellavalle R, Delossantos A, Denenberg J, Derrett S, Des Jarlais DC, Dharmaratne SD, Dherani M, Diaz-Torne C, Dolk H, Dorsey ER, Driscoll T, Duber H, Ebel B, Edmond K, Elbaz A, Ali SE, Erskine H, Erwin PJ, Espindola P, Ewoigbokhan SE, Farzadfar F, Feigin V, Felson DT, Ferrari A, Ferri CP, Fevre EM, Finucane MM, Flaxman S, Flood L, Foreman K, Forouzanfar MH, Fowkes FG, Franklin R, Fransen M, Freeman MK, Gabbe BJ, Gabriel SE, Gakidou E, Ganatra HA, Garcia B, Gaspari F, Gillum RF, Gmel G, Gosselin R, Grainger R, Groeger J, Guillemin F, Gunnell D, Gupta R, Haagsma J, Hagan H, Halasa YA, Hall W, Haring D, Haro JM, Harrison JE, Havmoeller R, Hay RJ, Higashi H, Hill C, Hoen B, Hoffman H, Hotez PJ, Hoy D, Huang JJ, Ibeanusi SE, Jacobsen KH, James SL, Jarvis D, Jasrasaria R, Jayaraman S, Johns N, Jonas JB, Karthikeyan G, Kassebaum N, Kawakami N, Keren A, Khoo JP, King CH, Knowlton LM, Kobusingye O, Koranteng A, Krishnamurthi R, Lalloo R, Laslett LL, Lathlean T, Leasher JL, Lee YY, Leigh J, Lim SS, Limb E, Lin JK, Lipnick M, Lipshultz SE, Liu W, Loane M, Ohno SL, Lyons R, Ma J, Mabweijano J, MacIntyre MF, Malekzadeh R, Mallinger L, Manivannan S, Marcenes W, March L, Margolis DJ, Marks GB, Marks R, Matsumori A, Matzopoulos R, Mayosi BM, McAnulty JH, McDermott MM, McGill N, McGrath J, Medina-Mora ME, Meltzer M, Mensah GA, Merriman TR, Meyer AC, Miglioli V, Miller M, Miller TR, Mitchell PB, Mocumbi AO, Moffitt TE, Mokdad AA, Monasta L, Montico M, Moradi-Lakeh M, Moran A, Morawska L, Mori R, Murdoch ME, Mwaniki MK, Naidoo K, Nair MN, Naldi L, Narayan KM, Nelson PK, Nelson RG, Nevitt MC, Newton CR, Nolte S, Norman P, Norman R, O'Donnell M, O'Hanlon S, Olives C, Omer SB, Ortblad K, Osborne R, Ozgediz D, Page A, Pahari B, Pandian JD, Rivero AP, Patten SB, Pearce N, Padilla RP, Perez-Ruiz F, Perico N, Pesudovs K, Phillips D, Phillips MR, Pierce K, Pion S, Polanczyk GV, Polinder S, Pope CA 3rd, Popova S, Porrini E, Pourmalek F, Prince M, Pullan RL, Ramaiah KD, Ranganathan D, Razavi H, Regan M, Rehm JT, Rein DB, Remuzzi G, Richardson K, Rivara FP, Roberts T, Robinson C, De Leon FR, Ronfani L, Room R, Rosenfeld LC, Rushton L, Sacco RL, Saha S, Sampson U, Sanchez-Riera L, Sanman E, Schwebel DC, Scott JG, Segui-Gomez M, Shahraz S, Shepard DS, Shin H, Shivakoti R, Singh D, Singh GM, Singh JA, Singleton J, Sleet DA, Sliwa K, Smith E, Smith JL, Stapelberg NJ, Steer A, Steiner T, Stolk WA, Stovner LJ, Sudfeld C, Syed S, Tamburlini G, Tavakkoli M, Taylor HR, Taylor JA, Taylor WJ, Thomas B, Thomson WM, Thurston GD, Tleyjeh IM, Tonelli M, Towbin JA, Truelsen T, Tsilimbaris MK, Ubeda C, Undurraga EA, van der Werf MJ, van Os J, Vavilala MS, Venketasubramanian N, Wang M, Wang W, Watt K, Weatherall DJ, Weinstock MA, Weintraub R, Weisskopf MG, Weissman MM, White RA, Whiteford H, Wiersma ST, Wilkinson JD, Williams HC, Williams SR, Witt E, Wolfe F, Woolf AD, Wulf S, Yeh PH, Zaidi AK, Zheng ZJ, Zonies D, Lopez AD, Murray CJ, AlMazroa MA, Memish ZA. Years lived with disability (YLDs) for 1160 sequelae of 289 diseases and injuries 1990-2010: a systematic analysis for the Global Burden of Disease Study 2010. Lancet. 2012 Dec 15;380(9859):2163-96. doi: 10.1016/S0140-6736(12)61729-2.
PubMed 23245607Waddell G, Newton M, Henderson I, Somerville D, Main CJ. A Fear-Avoidance Beliefs Questionnaire (FABQ) and the role of fear-avoidance beliefs in chronic low back pain and disability. Pain. 1993 Feb;52(2):157-168. doi: 10.1016/0304-3959(93)90127-B.
PubMed 8455963Linton SJ, Buer N, Vlaeyen J, Hellsing AL. Are fear-avoidance beliefs related to the inception of an episode of back pain? A prospective study. Psychol Health. 2000 Nov;14(6):1051-9. doi: 10.1080/08870440008407366.
PubMed 22175261Burton AK, Waddell G, Tillotson KM, Summerton N. Information and advice to patients with back pain can have a positive effect. A randomized controlled trial of a novel educational booklet in primary care. Spine (Phila Pa 1976). 1999 Dec 1;24(23):2484-91. doi: 10.1097/00007632-199912010-00010.
PubMed 10626311Symonds TL, Burton AK, Tillotson KM, Main CJ. Do attitudes and beliefs influence work loss due to low back trouble? Occup Med (Lond). 1996 Feb;46(1):25-32. doi: 10.1093/occmed/46.1.25.
PubMed 8672790Ferreira ML, Machado G, Latimer J, Maher C, Ferreira PH, Smeets RJ. Factors defining care-seeking in low back pain--a meta-analysis of population based surveys. Eur J Pain. 2010 Aug;14(7):747.e1-7. doi: 10.1016/j.ejpain.2009.11.005. Epub 2009 Dec 24.
PubMed 20036168Steenstra IA, Koopman FS, Knol DL, Kat E, Bongers PM, de Vet HC, van Mechelen W. Prognostic factors for duration of sick leave due to low-back pain in dutch health care professionals. J Occup Rehabil. 2005 Dec;15(4):591-605. doi: 10.1007/s10926-005-8037-9.
PubMed 16254758Alexopoulos EC, Konstantinou EC, Bakoyannis G, Tanagra D, Burdorf A. Risk factors for sickness absence due to low back pain and prognostic factors for return to work in a cohort of shipyard workers. Eur Spine J. 2008 Sep;17(9):1185-92. doi: 10.1007/s00586-008-0711-0. Epub 2008 Jul 23.
PubMed 18649089Haahr JP, Frost P, Andersen JH. Predictors of health related job loss: a two-year follow-up study in a general working population. J Occup Rehabil. 2007 Dec;17(4):581-92. doi: 10.1007/s10926-007-9106-z. Epub 2007 Oct 24.
PubMed 17957450Frazier LM, Carey TS, Lyles MF, McGaghie WC. Lengthy bed rest prescribed for acute low back pain: experience at three general medicine walk-in clinics. South Med J. 1991 May;84(5):603-6.
PubMed 1827930Elfering A, Muller U, Rolli Salathe C, Tamcan O, Mannion AF. Pessimistic back beliefs and lack of exercise: a longitudinal risk study in relation to shoulder, neck, and back pain. Psychol Health Med. 2015;20(7):767-80. doi: 10.1080/13548506.2015.1017824. Epub 2015 Mar 2.
PubMed 25726859Godges JJ, Anger MA, Zimmerman G, Delitto A. Effects of education on return-to-work status for people with fear-avoidance beliefs and acute low back pain. Phys Ther. 2008 Feb;88(2):231-9. doi: 10.2522/ptj.20050121. Epub 2007 Dec 4.
PubMed 18056753Chen G, Tan BK, Jia HL, O'Sullivan P, Burnett A. Questionnaires to examine Back Pain Beliefs held by health care professionals: a psychometric evaluation of Simplified Chinese versions. Spine (Phila Pa 1976). 2011 Aug 15;36(18):1505-11. doi: 10.1097/BRS.0b013e3181f49eec.
PubMed 21240047
Study at a glance
From the registry record, last updated by the sponsor on 28 Aug 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Cross-Cultural Adaptation and Validation of the Back Beliefs Questionnaire to the Turkish Language
- ClinicalTrials.gov ID
- NCT04071522
- Acronym / sponsor ID
- 050.05.04.05.01
- Conditions
- Low Back Pain
- Keywords
- low back pain, turkish language, pain beliefs, validity
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 110 participants (actual)
- Lead sponsor
- Bezmialem Vakif UniversityUniversity, hospital or other
- Study start
- 1 Jun 2018 (actual)
- Primary completion
- 12 Feb 2019 (actual)
- Study completion
- 12 Feb 2019 (actual)
- First posted
- 28 Aug 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The Back Beliefs Questionnaire (BBQ) developed by Symonds et al. in 1996 is used to measure patient's attitudes and beliefs towards recovery and return-to-work; and expectations regarding the negative circumstances that could be created as a result of low back pain (LBP).The aim of this study was the translation to Turkish language, cross-cultural adaptation and assessment of reliability\&validity of BBQ for the patients suffering from chronic LBP.
Detailed description
Back Beliefs Questionnaire was translated and culturally adapted into Turkish regarding to the published guidelines. This observational cross-sectional study was performed with 110 chronic low back pain patients. All participants were asked to complete Back Beliefs Questionnaire and also fill the socio-demographic data form and evaluation tools (Numeric rating scale-pain, Oswestry Disability Index, Fear Avoidance Beliefs Questionnaire, Hospital Anxiety and Depression Scale). Internal consistency was evaluated with Cronbach's alfa coefficient. Intraclass correlation coefficient was used to assess test-retest reliability. Structural validity was assessed by correlations with other tools.
Back Beliefs Questionnaire had a good internal consistency (Cronbach alfa= 0.79) and an excellent test-retest reliability (Intraclass correlation coefficient = 0.84). A moderate correlation was determined between Back Beliefs Questionnaire and Fear Avoidance Beliefs Questionnaire. Correlations with Numeric rating scale-pain, Oswestry Disability Index, Hospital Anxiety and Depression Scale were fair.
Turkish version of Back Beliefs Questionnaire is a valid and reliable questionnaire that can be used to evaluate beliefs about pain in patients with chronic low back pain.
Study design
- Observational model
- Case only
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| LBP | – | Other: no intervention110 literate Turkish speaking patients suffering from low back pain (LBP) for over 3 months, within the age range 18-65 were included in the study. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Patients who consulted to our Physical Medicine and Rehabilitation clinic during the period between June 2018 and April 2018; and volunteered to participate in this study were evaluated.
Key inclusion criteria (2 listed)
- Turkish speaking
- Suffering from low back pain during activity for over 3 months
Key exclusion criteria (6 listed)
- pregnancy
- malignancy
- infections
- fractures
- inflammatory diseases
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| no interventionno intervention | Other | LBP |
Primary outcome
Back Beliefs Questionnaire
Time frame: 10 minutes
BBQ was designed to evaluate patients' LBP and their expectations regarding the negative outcomes that might be inflicted on their future; and their attitude towards return-to-work.BBQ consists of 14 items to be filled in by patients. Nine of which are used to evaluate inevitability (1st, 2nd, 3rd, 6th, 8th, 10th, 12th, 13th, 14th) and the other 5 are distractors (4th, 5th, 7th, 9th, 11th). All items are evaluated on a 5-point-Likert Scale that referred to "1-Definitely Disagree" and "5-Definitely Agree". Scoring is calculated over the expressions included in the inevitability measure by reversing the numerical values which are appointed by the participants. The resulting score is between 9 and 45. Lower scores supports the more incompatible and pessimistic beliefs.
Numeric Rating Scale-Pain
Time frame: 2 minutes
Numeric Rating Scale-Pain is a scale with good sensitivity that quantitatively evaluates the pain intensity, which is easily comparable to other pain scales. The patient defines pain level within a range of 1 to 10. 1 point represents the minumum pain level, while 10 indicates the most severe pain.
Oswestry Disability Index
Time frame: 5 minutes
Oswestry Disability Index is a scale that assesses the functional disability level associated with LBP. It consists of 10 items that each have 6 options, which are scored between 0-5. The patient's total score is divided by the maximum possible score and multiplied by 100; and a percentage score is thus attained. The resulting score is between 0 and 100. As the total score increases, the level of functional disability also increases
Fear Avoidance Beliefs Questionnaire
Time frame: 3 minutes
Fear Avoidance Beliefs Questionnaire evaluates the physical activity and work related beliefs of fear and avoidance that arise in patients with LBP. It consists of two subscales (physical activity and work) and 16 questions in total.The patient rates their agreement with each statement on a 7-point Likert scale. Where 0= completely disagree, 6=completely agree. There is a maximum score of 96. A higher score indicates more strongly held fear avoidance beliefs.
Hospital Anxiety and Depression Scale
Time frame: 3 minutes
The Hospital Anxiety and Depression Scale is a frequently used self-rating scale developed to assess psychological distress in non-psychiatric patients. The questionnaire comprises seven questions for anxiety and seven questions for depression. HADS scores were interpreted as follows for each subscale: mild=8-10, modarate=11-14, severe=15-21.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Aug 2019.
- Background: PubMed 19204216Freburger JK, Holmes GM, Agans RP, Jackman AM, Darter JD, Wallace AS, Castel LD, Kalsbeek WD, Carey TS. The rising prevalence of chronic low back pain. Arch Intern Med. 2009 Feb 9;169(3):251-8. doi: 10.1001/archinternmed.2008.543.
- Background: PubMed 23634830Meucci RD, Fassa AG, Paniz VM, Silva MC, Wegman DH. Increase of chronic low back pain prevalence in a medium-sized city of southern Brazil. BMC Musculoskelet Disord. 2013 May 1;14:155. doi: 10.1186/1471-2474-14-155.
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- Individual participant dataSharing planned: No. Data will not be shared.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Low Back Pain, run by Bezmialem Vakif University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 28 Aug 2019. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Back Beliefs Questionnaire (time frame: 10 minutes). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04071522, which also lists 22 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Aug 2019; AzTrials last refreshed its copy on 7 Nov 2026.