What are the odds of filing a long-term disability claim for a musculoskeletal condition?
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- D2 Source authority
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- D3 Arithmetic
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- D4 Uncertainty
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- D6 Prose
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- D7 Perception honesty
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Lifetime probability · lifetime, US adult
1 in 14
7.3% lifetime chance
Most people underestimate this.
range 1 in 20 to 1 in 9.1
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≈ As likely as
Perceived
Most people assume that the leading cause of long-term disability is cancer, heart disease, or a serious accident. Musculoskeletal disorders — back pain, arthritis, degenerative disc disease, joint conditions — rarely come to mind as the top driver. The Council for Disability Awareness consistently finds musculoskeletal conditions responsible for roughly one-third of all long-term disability claims, making them the single largest category by a substantial margin. No survey directly measures what people guess the top cause to be, but the gap between public perception (accidents and cancer) and actual data (back and joint conditions) is documented across multiple insurer and advocacy sources.
Rough estimate: under 1 in 20 lifetime, most people guess
Source: editorial intuition, not polled
Actual
~30 in 100 long-term disability claims
US workers with long-term disability insurance claims
Show derivation
Two-step calculation. Step 1: SSA Fact Sheet states that just over 1 in 4 of today's 20-year-olds will become disabled (unable to work for 12+ months) before reaching normal retirement age (age 67). This implies a ~25% lifetime working disability probability. Step 2: CDA's long-term disability claims data finds musculoskeletal disorders account for approximately 29-30% of all LTD claims. Combining: 0.25 (lifetime disability probability) × 0.29 (musculoskeletal share of claims) ≈ 0.073. This chained estimate inherits uncertainty from both steps: the SSA figure is actuarial (includes all disabling conditions meeting SSDI criteria, not just employer LTD), and CDA's 29-30% figure is from insured employer LTD claims, a subset of all disabling events. The estimate is likely conservative for the broader disability definition and somewhat generous for the insured-LTD definition. Uncertainty range: 0.05-0.11.
Caveats: The 7.3% lifetime figure is a chained estimate: SSA's actuarial 25% lifetime wor…
The 7.3% lifetime figure is a chained estimate: SSA's actuarial 25% lifetime working disability probability × CDA's 29% musculoskeletal share of LTD claims. Both inputs carry uncertainty. The SSA figure is an actuarial projection for today's 20-year-olds entering the workforce; actual historical realized rates have varied. The CDA's 29% share is from insured employer LTD claims databases, which under-represent self-employed workers, informal workers, and workers without employer LTD coverage. The true population-level musculoskeletal disability rate is likely higher than 7.3% but less precisely documented because many musculoskeletal disabilities are managed without a formal LTD claim. "Long-term disability claim" as used here means a formal claim under an employer group LTD insurance policy, not including short-term disability, workers' compensation, or informal work absences. Back and neck conditions account for the majority of musculoskeletal LTD claims; arthritis and connective tissue disorders are the next largest sub-category.
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Back pain, arthritis, and joint degeneration — not cancer, heart attacks, or accidents — are the leading cause of long-term disability insurance claims in the United States. The Council for Disability Income Awareness, which compiles data from large group LTD insurer claim databases, consistently finds that musculoskeletal disorders account for nearly one-third of all long-term disability claims, making them the single largest category. Cancer comes second at roughly 15%; injuries rank third at around 11%. The gap between public perception (which defaults to dramatic acute events) and the actual claims data (dominated by chronic, progressive joint and spine conditions) is one of the more consistent misfires in disability planning.
Translating the claims-share figure into a lifetime probability requires combining two estimates. The Social Security Administration states that just over 1 in 4 of today’s 20-year-olds will become disabled before reaching retirement age — a 25% lifetime working disability probability across all causes. Applying the musculoskeletal share (~29%) yields a lifetime musculoskeletal LTD probability of approximately 0.25 × 0.29 ≈ 7.3%, or roughly 1 in 14. This is an estimate, not a single-source figure; the two inputs are independently measured and the chained calculation inherits uncertainty from both. The true rate is likely higher because the SSA and CDA definitions exclude informal work absences and the large population of workers without employer LTD coverage.
The risk accumulates across the working lifetime rather than arriving as a single event. Musculoskeletal conditions typically begin with episodic symptoms in the 30s and 40s, progressing to chronic limitation by the 50s and 60s. The age 55-64 working cohort has roughly double the musculoskeletal LTD claim rate of 20-34 year olds. Physically demanding occupations (construction, nursing, warehouse work) carry roughly double the risk of office-based work, but sedentary work with poor ergonomics also elevates the risk above baseline through repetitive strain. Consistent strength training is among the strongest modifiable protective factors.
Claim ledger
Every number below is what each source reported, with the verbatim quote we relied on and how we arrived at our figure. Click any link to verify directly.
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[1] The Council for Disability Income Awareness (CDIA) — The Top 5 Reasons Why People Go Out of Work and Stay Out of Work
The Top 5 Reasons Why People Go Out of Work and Stay Out of WorkSee all 2 Likelier entries citing this source →
- Statistic
Musculoskeletal disorders are responsible for nearly one-third (approximately 29-33%) of all long-term disability claims, making them the leading cause- Excerpt
“"Musculoskeletal disorders [are] responsible for a nearly third of all long-term disability claims." ”
- Source data from
- 2018-04-30
- Accessed
- 2026-05-14 · archived copy
- Calculation
- CDIA's analysis of LTD insurer claims data places musculoskeletal disorders as the single largest category at ~29-33% of claims (varies slightly by year and insurer dataset). Back and spine conditions are the largest sub-category within musculoskeletal. Cancer is the second most common cause at ~15% of claims, followed by injuries at ~11%. Mental health/nervous conditions account for ~9% and circulatory conditions ~9%. Step 1 calculation: SSA 25% lifetime disability × 0.29 musculoskeletal share = 0.073 lifetime unconditional probability.
- Independence
- CDIA compiles data from multiple large group LTD insurer claim databases. This is independent of SSA SSDI administrative data; employer LTD and SSDI have different eligibility thresholds and populations. Both sources converge on similar overall disability incidence.
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[2] Social Security Administration (SSA) — Social Security Basic Facts — Disability Statistics
Social Security Basic Facts — Disability StatisticsSee all 2 Likelier entries citing this source →
- Statistic
Just over 1 in 4 of today's 20-year-olds will become disabled before reaching normal retirement age (age 67)- Excerpt
“"Just over 1 in 4 of today's 20 year-olds can expect to be out of work for at least a year because of a disabling condition before they reach the normal retirement age." ”
- Source data from
- 2024-01-01
- Accessed
- 2026-05-14 · archived copy
- Calculation
- SSA fact sheet provides the ~25% lifetime working-age disability probability used in Step 1 of the chained calculation. This figure includes all disabling conditions meeting SSDI/SSI criteria. Applied to the musculoskeletal share (Step 2): 0.25 × 0.29 ≈ 0.073. The SSA figure is for workers entering the workforce today; historical cohort rates were lower. The 25% is widely cited as the standard lifetime working disability estimate.
- Independence
- SSA administrative data is independent of CDIA's LTD insurer claims data. SSA measures approved SSDI/SSI disability claims while CDIA measures employer group LTD insurance claims. The two populations partially overlap but are distinct: not all SSDI recipients have employer LTD coverage, and many LTD claimants do not meet SSDI criteria.