証拠の質 4.25/5
8次元のレビュー評価。基準は 品質ルーブリック 。各次元は1〜5で評価。
- D1 出典への根拠
- 4/5
- D2 出典の権威性
- 5/5
- D3 算術
- 4/5
- D4 不確実性
- 4/5
- D5 範囲
- 5/5
- D6 文章
- 4/5
- D7 認識の誠実性
- 4/5
- D8 注意事項の完全性
- 4/5
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- あなたの要因
認知リスク
LIMRAの調査は一貫して、労働者のおよそ半数が自身の障害リスクを10%以下と見積もり、知覚された生涯リスクの中央値が15%を大きく下回ることを見いだしている。多くの労働者は障害を、請求の大半を占めるありふれた筋骨格系や精神保健上の疾患ではなく、劇的な事故や末期がんによって引き起こされるものと想像している。最も多い過小評価は知覚された生涯リスクを約8%に置くが、実際の数字は25%以上である。
出典: 編集部の直感(調査に基づかない)
実際のリスク
労働者の4分の1以上が退職年齢に達する前に障害を経験する
20歳で労働力に加わる米国の労働者(SSA保険数理コホート)
計算を表示
20歳に達する被保険労働者に関するSSA OACT 2025年保険数理表。見出しの数字(4分の1、すなわち25%)はSSA自身が公表した丸めた推定値である。性別ごとの推定値は男性が約34%、女性が約29%で、両者を合わせた加重平均は約31%となる。見出しの25%以上はSSAの保守的な公衆向けコミュニケーションを反映している。出生から77歳までではなく、キャリアの期間(20歳からNRA 67歳まで)のスコープに正規化しているため、activity_specific_lifetimeスコープとなる。不確実性の下限=0.22(より狭い「実質的な就労活動が一切できない」という定義)、不確実性の上限=0.34(OACTによる男性の保険数理上の上限推定値)。
関連するリスク
似たテーマの他のリスク — 関連する不安を探るために。
このリスクが関わる決断
このリスク次第で変わる選択。そのトレードオフをどう見るか。
比較対象を選択
Workers tend to imagine disability as something that happens to other people — the result of a dramatic accident or a late-stage disease. The actual epidemiology is quieter and more common. The Social Security Administration’s own actuarial office calculates that roughly 34% of men and 29% of women who enter the workforce at age 20 will experience a disabling condition before reaching retirement age. The agency’s public-facing summary rounds this to “more than 1 in 4,” a figure that has been stable across multiple actuarial review cycles. The leading causes are not catastrophic trauma but musculoskeletal disorders (accounting for about 29% of long-term disability claims), cancer (15%), pregnancy complications (9%), and mental health conditions (9%). Injuries — the category most people picture — rank behind all of these.
Duration compounds the probability into a financial event. The average qualifying long-term disability claim runs approximately 31 to 35 months according to the Council for Disability Income Awareness, which compiles group and individual insurer data annually. A disability lasting nearly three years erases emergency savings for most households, threatens housing security, and — if the worker lacks employer-sponsored or individual coverage — may push an otherwise solvent person toward an SSDI application that takes years to adjudicate. Roughly 65% of private-sector workers have no long-term disability coverage at all, according to LIMRA. The gap between the statistical frequency of the event and the prevalence of protection against it is one of the larger mismatches in personal financial risk.
Perception surveys confirm that most workers substantially underestimate their own risk. LIMRA surveys consistently find that about half of employees place their personal disability risk at 10% or lower over a career. Mental health conditions and cancer — neither of which discriminates by job type — account for nearly a quarter of all claims between them. The “1 in 4” figure is a population-level estimate, not a guarantee, and individual risk varies meaningfully by occupation, sex, and health history; but the central tendency is far higher than most workers guess.
関連する豆知識
根拠台帳
以下の各数値は各出典が報告した内容であり、引用した原文の抜粋と算出方法を記載しています。リンクをクリックして直接確認できます。
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[1] Social Security Administration — The Faces and Facts of Disability
The Faces and Facts of Disability- 統計値
More than 1 in 4 of today's 20-year-olds will become disabled before reaching retirement age.- 抜粋
“"The sobering fact for 20-year-olds is that more than 1-in-4 of them becomes disabled before reaching retirement age." ”
- 出典データ
- 2024-01-01
- アクセス日
- 2026-05-13 · アーカイブ版
- 計算過程
- SSA headline figure: 1 in 4 (25%) of 20-year-olds becomes disabled before NRA (age 67). This is the native statistic: 1/4 workers over a career horizon. SSA OACT 2025 actuarial tables refine this sex-specifically to ~34% of men and ~29% of women; the headline rounds to 25%+ for the combined cohort. Normalized lifetime_us_adult set to 0.25 (the SSA headline), consistent with the activity_specific_lifetime scope (working career from age 20 to NRA 67, not birth-to-77). Uncertainty low = 0.22 (lower bound allowing for definitional narrowing of "disability"); uncertainty high = 0.34 (SSA actuarial male upper estimate).
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[2] Social Security Administration, Office of the Chief Actuary — Disability and Death Probability Tables for Insured Workers Attaining Age 20 in 2025
Disability and Death Probability Tables for Insured Workers Attaining Age 20 in 2025- 統計値
Probability of becoming disabled before NRA: ~34% for men, ~29% for women (attaining age 20 in 2025).- 抜粋
“"The probability of surviving from age 20 to Normal Retirement Age without ever being disabled is 66 percent for men and 71 percent for women." ”
- 出典データ
- 2025-06-01
- アクセス日
- 2026-05-13 · アーカイブ版
- 計算過程
- Complement of survival probability: 1 - 0.66 = 0.34 (men); 1 - 0.71 = 0.29 (women). Combined approximate: ~0.31 weighted average, consistent with the SSA headline of "more than 1 in 4." The combined figure understates male risk and overstates female risk; the headline 25%+ figure reflects the SSA's own rounded public communication, not a recalculation.
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[3] Council for Disability Income Awareness (CDIA) — The Average Duration of Long-Term Disability is 31.2 Months
The Average Duration of Long-Term Disability is 31.2 Months- 統計値
Average long-term disability claim lasts approximately 31–35 months.- 抜粋
“"The average duration of a long-term disability claim is almost 35 months, according to the Council for Disability Awareness." ”
- 出典データ
- 2023-01-01
- アクセス日
- 2026-05-13 · アーカイブ版
- 計算過程
- This source provides claim duration context, not a probability figure. Used to establish that a qualifying disability event is not typically brief: the modal claim runs nearly three years, reinforcing the financial materiality of the risk.








