証拠の質 4.75/5
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
- 5/5
- D2 出典の権威性
- 5/5
- D3 算術
- 5/5
- D4 不確実性
- 4/5
- D5 範囲
- 5/5
- D6 文章
- 5/5
- D7 認識の誠実性
- 4/5
- D8 注意事項の完全性
- 5/5
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認知リスク
消防士という職業は、危険な仕事の典型としてアメリカの文化的想像力の中で特別な位置を占めている。映画、慰霊碑、報道はいずれも極端な危険というイメージを増幅する。一般の人々の多く、そして消防士自身の多くも、リスクのうち外傷死の割合を大幅に過大評価しており、劇的な建物の崩落や猛火による死亡が支配的な死因だと思い描いている。実際には、心臓イベントが一貫して全消防士殉職(LODD)の約45~50%を占めており、全死因のキャリア死亡率は、米国労働者の平均より確かに高いものの、多くの人が想定するより低い。「キャリア消防士の生涯死亡リスクの認識」を単独で測定した厳密な母集団調査は見つかっておらず、この項目は編集上の直観を用いている。
概算: 多くの人はキャリア消防士の殉職リスクをキャリア全体で数パーセントと推測するとみられるが、実際の全死因の数字は0.2~0.3%に近い
出典: 編集部の直感(調査に基づかない)
実際のリスク
年間約30件のキャリア消防士殉職(2018~2023年平均、全死因)
米国のキャリア(有給)消防士
計算を表示
参照サブグループ:米国の市町村消防本部で30年のフルキャリアを勤めるキャリア(有給・非ボランティア)消防士。 分子:NFPAの年次報告書「Fatal Firefighter Injuries in the United States」は、キャリア消防士の殉職を2023年に30件、2022年に39件、2018年に33件、2019年に20件(この十年で最低)記録している。2018~2023年の期間(勤務後24時間以内の心臓死のカウント方法が異なっていた2020~2021年のCOVID期の異常な報告を除く)では、キャリア消防士の年間殉職数は平均約30件で、外傷と突然の心臓イベントの両方を含む全死因である。NFPAの報告書は、消火活動、車両出動、訓練、火災以外の緊急出動、緊急でない署内勤務中の死亡を対象としている。 分母:NFPAの「U.S. Fire Department Profile」(2020年データ、2022年公表)は全国に約370,000人のキャリア消防士がいると報告している。2022年5月のBLS職業雇用・賃金統計(OES)では有給消防士は321,450人と、やや狭い集計だった(NFPAが数える一部の監督職を除外)。この項目では、NFPA自身の死亡率計算の分母と整合するよう370,000を分母として用いる。 年間率:30 / 370,000 = 年間100,000人あたり8.1件。 30年キャリアのリスク:1 − (1 − 0.000081)^30 ≈ 0.0024(0.24%)、およそ415分の1。 これは特定の職業におけるキャリア累積リスクであり、一般人口の生涯数値ではないため、スコープはactivity_specific_lifetimeとして宣言されている。Likelierの他の項目に示される人口レベルの生涯リスクとは直接比較できない。 外傷のみのサブセット(火災現場での崩落、車両事故、落下物・飛来物との衝突):キャリア消防士はボランティアよりも心臓イベントによる死亡の割合が高い(Witkiewitzら2018年の熱傷医療研究では、ボランティアは外傷死についてキャリアに対しOR 1.8)。心臓イベントは全殉職の約45~50%を占める(PMC3710100)。心臓死を除くと、外傷のみのキャリア殉職は年間およそ15~17件。16/370,000 ≈ 年間100,000人あたり4.3件とすると、30年キャリアの外傷のみのリスクは約0.13%(750分の1)。NFPA自身の「Fatal Firefighter Injuries」の枠組みが外傷と心臓の勤務中死亡を等しく報告対象の職業的危険として扱っているため、全死因の数字を見出しに用いる。 比較:米国の平均的労働者の職業死亡率(BLS CFOI)は年間FTE労働者100,000人あたり約3.4~3.5件。キャリア消防士は年間100,000人あたり約8件で、全労働者平均のおよそ2.3倍。平均より高いものの、漁業の約25/100,000や伐採労働者の約20/100,000(BLSの死亡率で最も危険な民間職業)にははるかに及ばない。
注意事項: 全死因の殉職(LODD)数値には、外傷(建物の崩落、車両事故、落下物・飛来物との衝突)と、勤務中または勤務後24時間以内に発生した突然の心臓イベントの両方が含ま…
全死因の殉職(LODD)数値には、外傷(建物の崩落、車両事故、落下物・飛来物との衝突)と、勤務中または勤務後24時間以内に発生した突然の心臓イベントの両方が含まれる。心臓イベントはキャリア消防士の殉職の約45~50%を占める。外傷のみの30年キャリアのリスクはより低く、約0.13%(750分の1)である。2020~2021年のデータ年は、NFPAが心臓死の報告方法を勤務中のみから勤務後24時間以内のイベントも捕捉する方式に変更し、その合計が膨らんだため(2021年は141件、2019年は65件)、率の平均から除外した。ボランティア消防士(全米消防士の約70%)は除外されている。彼らは異なる曝露プロファイルを持ち、キャリア消防士よりも1人あたりの外傷死亡率が概して高い(査読文献でOR 1.8)。消防士のがん関連死は殉職統計には数えられていないが、別個の重大な職業的危険である。消防士は一般人口に比べてがん罹患率が約9%、がん死亡率が14%高く、勤務中・勤務外・キャリア全体の曝露を合わせると、職業性がんは現在、消防士の死因全体で最大のものとして挙げられている。
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。
比較対象を選択
Career firefighting is genuinely more dangerous than the average American job — but the dominant cause of on-duty death is not the dramatic structural collapse or inferno that cultural imagery suggests. Across the past four decades, roughly 45 to 50 percent of all firefighter line-of-duty deaths (LODDs) in the United States have been sudden cardiac events, most triggered by the extreme physiological stress of suppression activity. For career (paid) firefighters specifically, the National Fire Protection Association recorded 30 career LODDs in 2023 and 39 in 2022. Averaged across the 2018 to 2023 period against a population of approximately 370,000 career firefighters nationally, the annual death rate works out to roughly 8 per 100,000 — about 2.3 times the all-worker occupational fatality rate of 3.4 per 100,000. Over a 30-year career, the cumulative all-cause LODD probability is approximately 0.24 percent, or roughly 1 in 415. For the traumatic subset only (structural entrapment, vehicle crashes, burns, collapse), the 30-year career risk is approximately 0.13 percent, or 1 in 750.
What the statistics reveal about the perception gap is instructive. The public image of firefighting danger focuses overwhelmingly on traumatic deaths at structure fires, but these represent only about a third of annual LODDs. Cardiac deaths during suppression activity carry an implausibly high relative risk — a 2013 review in Extreme Physiology & Medicine found that the risk of sudden cardiac death during active fire suppression is 10 to 100 times the baseline risk during non-emergency duties, despite suppression accounting for only 1 to 5 percent of annual working time. The practical implication is that the primary modifiable risk factor for career firefighter LODD is cardiovascular fitness, not the structural or tactical conditions of the fireground. An estimated 56 percent of active firefighters do not meet the aerobic fitness standard recommended by the IAFF/IAFC Wellness-Fitness Initiative. Departments with mandatory fitness programs and annual medical evaluations consistently show lower cardiac fatality rates than those without.
The career LODD risk also varies substantially by role, department size, and assignment. Career firefighters in interior suppression roles at busy urban engine companies face a higher exposure profile than those in command, investigation, or prevention assignments. Rural career firefighters face elevated vehicle-crash risk — en-route and returning-from responses account for a meaningful fraction of traumatic LODDs, and rural roads have worse emergency-response crash profiles than urban ones. At the same time, the career LODD rate has declined substantially over decades: the 1990 to 2009 period averaged 47.4 deaths per million firefighters per year, while 2010 to 2016 averaged 35 per million, a statistically significant reduction driven largely by falling traumatic-death rates. Cardiac death rates have remained roughly flat over the same interval — suggesting that training, equipment, and incident command improvements have reduced structural hazards, while the cardiovascular risk driven by physiological stress has not responded to the same interventions.
関連する豆知識
米国の職業消防士の30年の経歴で全死因合わせて約1 in 450。文化的イメージは建物の崩落に固定されているが、突発的な心臓事象が殉職の約45〜50パーセントを占め、体力が最大の改善可能要因となっている。
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。
2/4 件の出典が引用元と一字一句一致することを独立して検証済み
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[1] National Fire Protection Association (Richard Campbell, lead author) — Firefighter Fatalities in the United States — Annual NFPA Report Series 検証済み
Firefighter Fatalities in the United States — Annual NFPA Report Series- 統計値
89 on-duty firefighter fatalities in 2023, of which 30 were career firefighters; 62 fatalities in 2024, of which 26 were career firefighters; 97 total in 2022 of which 39 were career; cardiac events account for approximately 45–50% of all LODD deaths historically- 抜粋
“"Reductions in the number of fatalities among career firefighters accounted for most of the overall decline, with a 23% drop from 39 deaths in 2022 to 30 in 2023." "The largest share of deaths (32) occurred while firefighters were operating at fires or explosions, representing 36 percent of the total number of fatalities." ”
- 出典データ
- 2024-07-01
- アクセス日
- 2026-05-10 · アーカイブ版
- 検証
- グラウンディング監査の際、抜粋を引用元から独立して再取得し、原文と一字一句一致することを確認しました。
- 計算過程
- NFPA annual report series documents on-duty deaths for all US firefighters by employment type (career, volunteer, wildland, military). Career deaths by year from reports: 2023 = 30, 2022 = 39, 2021 elevated due to COVID-era counting, 2019 = 20, 2018 = 33. Six-year (2018–2023) average ≈ 30/year for career firefighters. Rate: 30 / 370,000 (NFPA career firefighter population) = 8.1 per 100,000/year. 30-year career risk: 1 − (1 − 8.1×10⁻⁵)^30 = 0.0024 ≈ 1 in 415.
- 独立性
- NFPA collects fatality data independently from USFA/FEMA through its own survey of fire departments. Both the NFPA and USFA series draw on the same underlying incident reports but compile them through separate channels, providing corroboration.
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[2] U.S. Fire Administration / FEMA — Annual Report on Firefighter Fatalities in the United States — USFA/FEMA
Annual Report on Firefighter Fatalities in the United States — USFA/FEMA- 統計値
82 firefighter line-of-duty deaths in 2018, of which 33 were career firefighters; USFA tracks all on-duty deaths through the National Firefighter Registry and publishes annual reports- 抜粋
“"33 career [firefighter fatalities] (5 rural, 28 urban/suburban)" in 2018. "82 firefighters died in the line of duty last year, five fewer than the 87 who died in 2017." ”
- 出典データ
- 2019-10-01
- アクセス日
- 2026-05-10 · アーカイブ版
- 計算過程
- USFA reports confirm the NFPA career-firefighter death counts. 2018 career total = 33, consistent with the 2018–2023 average of approximately 30 career deaths per year used in the native rate calculation. USFA data is the primary government accountability source for the numerator; NFPA's denominator (370,000 career firefighters from Fire Department Profile surveys) is used for rate computation.
- 独立性
- USFA/FEMA is the primary US government tracking authority for firefighter LODDs, operating independently of NFPA. USFA data flows through the National Firefighter Registry, which receives incident reports from fire departments and coroners. NFPA conducts a parallel survey. The two series have historically agreed within 5–10 deaths per year on total LODD counts, providing strong mutual corroboration.
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[3] Extreme Physiology & Medicine / Smith DL, Barr DA, Kales SN (2013) — Extreme sacrifice: sudden cardiac death in the US Fire Service 検証済み
Extreme sacrifice: sudden cardiac death in the US Fire Service- 統計値
Sudden cardiac death accounts for approximately 45–50% of all line-of-duty firefighter fatalities over the past 40 years; fire suppression activity accounts for over 30% of line-of-duty cardiac deaths despite representing only 1–5% of annual working time; risk during fire suppression is 10–100× baseline non-emergency risk- 抜粋
“"SCEs are responsible for the leading cause of on-duty deaths over the past 40 years (≈45–50%)." "Although fire suppression duties were found to represent between 1% and 5% of a firefighter's annual working time, fire suppression activity accounted for more than 30% of line-of-duty CHD deaths." ”
- 出典データ
- 2013-07-01
- アクセス日
- 2026-05-10 · アーカイブ版
- 検証
- グラウンディング監査の際、抜粋を引用元から独立して再取得し、原文と一字一句一致することを確認しました。
- 計算過程
- Used to establish the cardiac vs traumatic split in career LODD deaths. If ~47% of the 30-per-year career LODD average are cardiac, traumatic-only career deaths ≈ 16/year. Traumatic-only 30-year career risk ≈ 1 − (1 − 16/370000)^30 ≈ 0.0013 (0.13%, about 1 in 750). This is the lower end of the uncertainty band. The all-cause rate (0.24%) anchors the headline; the traumatic-only rate anchors the uncertainty low bound.
- 独立性
- Peer-reviewed medical literature independent of NFPA and USFA administrative data series. Provides the physiological and epidemiological basis for the cardiac/traumatic death split and activity-specific risk magnitudes.
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[4] Journal of Burn Care & Research / Kahn SA, Leonard C, Siordia C (2019) — Firefighter Fatalities: Crude Mortality Rates and Risk Factors for Line of Duty Injury and Death
Firefighter Fatalities: Crude Mortality Rates and Risk Factors for Line of Duty Injury and Death- 統計値
Analysis of 3,159 firefighter line-of-duty deaths found crude mortality declined from 47.4 to 35 deaths per million comparing 1990-2009 vs 2010-2016 (P<.0001); firefighters aged ≤45 declined from 24.7 to 13.7 per million (P=.0002); trauma-related deaths fell from 13.1 to 8.1 per million while cardiovascular-related deaths stayed roughly flat at approximately 19.4-19.5 per million across both periods- 抜粋
“"Analysis of 3159 FFDs revealed a decline in crude-rate mortality between 1990-2009 and 2010-2016 (47.4 vs 35 FF deaths per million, P < .0001)." ”
- 出典データ
- 2019-02-20
- アクセス日
- 2026-07-03 · アーカイブ版
- 計算過程
- Corroborates the multi-decade decline referenced in the body prose: the overall crude LODD rate fell by roughly a quarter across the two periods, but the decline is concentrated in trauma-cause deaths (13.1 to 8.1 per million) while cardiac-cause deaths stayed essentially flat (~19.4-19.5 per million). This supports the entry's claim that training/equipment/command improvements have reduced structural hazards while the cardiovascular risk driver has not responded to the same interventions. Not used for the headline native/normalized figures, which remain anchored to the NFPA 2018-2023 career-firefighter series above.
- 独立性
- Peer-reviewed re-analysis of USFA's own published fatality reports (the authors extracted records from USFA's annual PDF booklets rather than an independently collected dataset), so it does not add a separate data source. Its value here is methodological: multinomial regression and multi-decade period grouping (1990-2009 vs 2010-2016) not found in the NFPA/USFA administrative annual reports or in the PMC3710100 cardiac-specific review; used here only for the long-run trauma-vs-cardiac trend comparison.







