Muscle, joint & pain

The Fear-Avoidance Beliefs Questionnaire for Back Pain

Save

It is the back-pain form that never asks how much your back hurts. Built from fear-avoidance theory in 1993, the FABQ asks what a person believes movement and work will cost them — and in its original study, beliefs about work explained more of the variation in disability and lost work than pain severity did. That finding is often misread, so it is worth reading carefully.

Last updated: July 2026

Talk to a clinician

Gale can help you find a clinician in your state and request a visit.

Find care →

What does the Fear-Avoidance Beliefs Questionnaire measure?

Beliefs, specifically about consequences. The questionnaire asks what a person expects physical activity and work to do to their back pain, and it resolves into two subscales measured separately: fear-avoidance beliefs about work, usually written FABQ-W, and fear-avoidance beliefs about physical activity, written FABQ-PA. Waddell and colleagues constructed it from fear-avoidance theory and validated it in 210 patients with chronic low back pain 1.

Direction is straightforward. A higher score means stronger fear-avoidance beliefs, which is the less favourable end 1. The two subscales are read separately because they are separate: someone can be entirely relaxed about walking and gardening and convinced that returning to a particular job will damage them permanently.

Fear-avoidance names a loop rather than a mood. In the theory the questionnaire came from, pain prompts a belief that movement is dangerous, the belief prompts avoiding it, and avoidance leads to a narrower and narrower range of movement that feels safe. Whether that loop is running is not visible on a scan and does not come up in most consultations unless someone asks.

What the form does not contain is a pain rating. It is not measuring how bad the back is. It is measuring what its owner thinks will happen next.

Why a back-pain clinic asks about beliefs at all

Because in low back pain, the tissue often does not explain the trouble. Most low back pain is non-specific — it cannot be attributed to any identifiable pathology — and imaging findings correlate poorly with symptoms, while the condition as a whole is the leading cause of years lived with disability worldwide 2. That combination is what makes psychological and social factors worth measuring rather than assuming.

This is not a claim that the pain is invented. It is a claim about the limits of pictures. Two people can have near-identical scans and entirely different lives, and the difference between them tends not to be visible in the imaging.

The FABQ was built in a chronic population 1, and chronic has a definition rather than a vibe: back pain lasting beyond twelve weeks, as distinct from the acute episodes measured in days to weeks 3. Beliefs matter across that whole span, but they have the longest time to compound in the chronic group.

The questionnaire exists because what a person expects from movement turned out to be measurable, and because the scan so often is not the explanation.

What the original study found the beliefs predicted

It found the work subscale doing most of the work. After controlling for pain severity, FABQ-W accounted for 23% of the variance in activities-of-daily-living disability and 26% of the variance in work loss, with FABQ-PA explaining a further 9% of the disability variance 1. Internal consistency was 0.88 for the work subscale and 0.77 for physical activity, and the two factors accounted for 43.7% and 16.5% of the total variance 1.

Beliefs about work explained 26% of the variance in work loss even after pain severity was accounted for 1.

Variance explained is a phrase worth translating. It does not mean that beliefs caused a quarter of the disability. It means that if you line up 210 people and try to predict which of them were more disabled or more likely to be off work, knowing their beliefs about work narrowed the guessing considerably — and did so on top of, not instead of, knowing how much pain they were in.

The distance between that and any individual prediction is large. A statistical association across a group of 210 people cannot tell one person what their own back will do. It tells a clinician which questions are worth asking, which is a real finding and a much smaller one than it is often made to sound.

Why this page prints no cutoff score

Because the paper that created the instrument contains none. It reports no minimal clinically important difference and no minimal detectable change, and it sets no threshold above which someone counts as fearful 1. The figures in circulation — a number of points on the work subscale that is said to flag elevated risk — come from later psychometric research rather than from the original report, and their meaning depends on the population that produced them.

That absence is not a gap in the evidence so much as a warning about how these scores get used. A number describing beliefs is more easily turned into a label than a number describing a knee, and the label sticks harder.

A high score on this questionnaire is not a finding that the pain is imagined, exaggerated, or the person's fault. It records an expectation, and expectations are formed by real experience — including previous injuries, previous jobs, and things clinicians have said.

There is one further reason for caution about numbers here. The original paper defines the questionnaire and its subscales, but the item count and score range widely quoted for it come from sources other than that publication, so this page describes the structure without asserting its arithmetic. When a clinician reports a FABQ result, the useful questions are which subscale it belongs to and what the maximum on their version is.

The Tampa Scale and the neighbouring idea

A second instrument measures something adjacent and is often met in the same clinic. The Tampa Scale for Kinesiophobia measures fear of movement and re-injury rather than beliefs about activity and work, with higher scores again indicating more of it 4. The two overlap without being interchangeable — one asks what you expect, the other asks what you are afraid of.

The study that established the Tampa Scale's properties found something clinically pointed: its scores tracked catastrophizing and depression more strongly than they tracked pain intensity, and they predicted fear and escape or avoidance behaviour when people were actually exposed to a simple movement 4. Fear of movement, in other words, showed up in what people did and not only in what they reported.

Those findings came from the seventeen-item Dutch version, studied in 103 patients with chronic low back pain and a further 33 who were exposed to a single movement 4. As with the FABQ, that paper establishes no cutoffs and no threshold for meaningful change 4 — the quoted values for the tampa scale come from later work.

Both instruments share a limitation worth stating once. They measure a belief at a moment. Beliefs change, sometimes quickly, and a score collected on the worst week of someone's year is a portrait of that week.

What the FABQ is not: a measure of disability

It does not record what a person can and cannot do, and it is not designed to. That job belongs to a different family of forms. The oswestry disability index, for instance, is a ten-section patient-reported measure scored as a percentage, covering how much low back pain limits ordinary activity 5. It asks about lifting, sitting, walking and sleeping. The FABQ asks what someone thinks lifting will do to them.

A back clinic may hand over several forms in one appointment: the oswestry questionnaire, the roland-morris questionnaire, the start back tool, this one. They are not redundant, and none of them substitutes for another. One measures limitation, one measures beliefs, one sorts people for different intensities of care.

Disability scores say what is happening. Belief scores suggest why it may be persisting.

Read together, the pair can point somewhere a single form cannot. High disability with low fear-avoidance is a different situation from high disability with high fear-avoidance, even when the two disability scores are identical — and the original FABQ study is precisely the evidence that the second group exists and is not rare 1.

What a high score actually changes

The conversation, mostly. A high score does not alter the diagnosis, does not appear on any scan, and does not by itself indicate a particular treatment. What it does is flag that a person's expectations about movement and work are part of the clinical picture, and that a plan built without reference to them is likely to run into them.

It is worth being honest about the size of what any of this buys. Even well-studied interventions in this field produce modest effects: early referral to physical therapy for recent-onset low back pain gave a small statistically significant improvement in disability at three months compared with usual care, and by one year the difference between the groups was no longer clinically important 6. Nothing in back pain research supports promising a lot from any single move.

What the fear-avoidance literature supports is narrower and still useful: that beliefs about work and activity are measurable, that they carry information about disability and work loss beyond pain severity 1, and that fear of movement shows up in behaviour under real conditions 4. Whether shifting a score shifts an outcome is a separate question that these sources do not answer.

So the reasonable use is as a prompt. A score is worth discussing with the clinician who collected it — what it was measuring, what it was not, and what in a person's history might explain it.

Common questions

No. The questionnaire measures beliefs about what activity and work will do to a back, not whether pain is real. Expectations are built from experience: previous injuries, physically demanding jobs, and things clinicians have said. A high score describes a reasonable response to a history, and it says nothing about whether the pain has a physical basis.

The paper that created the instrument sets no threshold, so there is no official line. Thresholds quoted in clinics come from later research and depend on the population studied and the version used. The two subscales are also scored separately, so a score reported without saying whether it is the work or the activity subscale is not interpretable.

Because they behave differently. In the original study, beliefs about work carried substantially more information about disability and lost work than beliefs about physical activity did. Someone can be comfortable walking or gardening while genuinely convinced that returning to a particular job will cause lasting harm, and averaging the two would hide that.

No, though they are close relatives. The FABQ asks what a person expects activity and work to do to their back. The Tampa Scale asks about fear of movement and re-injury more broadly. They overlap, they are often used in the same settings, and neither converts into the other or carries an established cutoff.

It does not. It records beliefs about work, which is not the same as a judgement about capacity or safety. Return-to-work decisions rest on the diagnosis, the demands of the specific job, how symptoms have behaved so far, and the assessment of the clinician and, where relevant, an occupational health service.

Beliefs are not fixed traits, and the questionnaire captures them at one moment. A score collected during the worst week of a flare is a portrait of that week. Repeating the form later, in the same version, is the only way to see whether anything has moved, and a single score is a poor basis for any conclusion.

Related

Say it back

How would you explain this to someone you love?

Two or three sentences, just as you’d say it. Gale reflects back what you focused on — a mirror, not a quiz.

Talk to a clinician

Gale can help you find a clinician in your state and request a visit.

Find care →

Back pain that needs assessment, not a questionnaire

  • —New numbness around the genitals, buttocks or inner thighs, or new difficulty controlling the bladder or bowel, including being unable to pass urine
  • —Leg weakness that is getting worse over hours or days, or a foot that has started to drag or catch
  • —Back pain with fever, shaking chills, or a recent infection, injection or intravenous drug use
  • —Back pain following significant trauma, or unexplained weight loss and night pain in someone with a history of cancer or with osteoporosis

Numbness in the saddle area, new loss of bladder or bowel control, or rapidly worsening leg weakness alongside back pain is treated as an emergency: that is an emergency department the same day, and calling 911 if you cannot get there quickly.

This page explains what a back-pain beliefs questionnaire measures and what its original study found. It is general education, not medical advice. No questionnaire score diagnoses the cause of back pain, grades its severity, or substitutes for an assessment by a clinician who can examine you.

References

  1. 1.Waddell G, Newton M, Henderson I, Somerville D, Main CJ (1993). 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 ✓The FABQ's provenance and construct: constructed from fear-avoidance theory and validated in 210 patients with chronic low back pain, measuring patients' beliefs about how physical activity and work affect their back pain; its two subscales, fear-avoidance beliefs about work (FABQ-W) and about physical activity (FABQ-PA), with Cronbach's alpha of 0.88 and 0.77 and accounting for 43.7% and 16.5% of total variance; its predictive validity, with FABQ-W accounting for 23% of the variance in activities-of-daily-living disability and 26% of the variance in work loss after controlling for pain severity, and FABQ-PA explaining a further 9% of disability variance; the direction that a higher score means stronger fear-avoidance beliefs; and the absence in this paper of any MCID, MDC or interpretation cutoff.
  2. 2.Hartvigsen J, Hancock MJ, Kongsted A, et al. (2018). What low back pain is and why we need to pay attention. The Lancet. doi:10.1016/S0140-6736(18)30480-XThat low back pain is the leading cause of years lived with disability worldwide, that most low back pain is non-specific and cannot be attributed to a specific pathology, and that imaging findings correlate poorly with symptoms.
  3. 3.National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) (2023). Back Pain (Symptoms, Types & Causes). NIAMS, National Institutes of Health. link ✓The definitional distinction between acute back pain, lasting days to weeks, and chronic back pain, lasting beyond twelve weeks.
  4. 4.Vlaeyen JWS, Kole-Snijders AMJ, Boeren RGB, van Eek H (1995). Fear of movement/(re)injury in chronic low back pain and its relation to behavioral performance. Pain. doi:10.1016/0304-3959(94)00279-N ✓That the Tampa Scale for Kinesiophobia measures fear of movement and re-injury with higher scores indicating greater fear; that in this study its scores tracked catastrophizing and depression more strongly than pain intensity and predicted fear and escape or avoidance behaviour on exposure to a single simple movement; that the work used the seventeen-item Dutch version in 103 patients with chronic low back pain plus 33 patients exposed to a movement; and that the paper reports no MCID, no MDC and no clinical cutoffs.
  5. 5.Fairbank JCT, Pynsent PB (2000). The Oswestry Disability Index. Spine. doi:10.1097/00007632-200011150-00017 ✓That the Oswestry Disability Index is a validated ten-section patient-reported measure, scored as a percentage, of the disability caused by low back pain — used here to contrast a measure of limitation with a measure of beliefs.
  6. 6.Fritz JM, Magel JS, McFadden M, et al. (2015). Early Physical Therapy vs Usual Care in Patients With Recent-Onset Low Back Pain: A Randomized Clinical Trial. JAMA. doi:10.1001/jama.2015.11648 ✓That early referral to physical therapy for recent-onset low back pain produced a small statistically significant improvement in disability at three months compared with usual care, and that between-group differences were no longer clinically important at one year.

6 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — citations link their sources. Editorial policy

← Back to the health library