Environmental and Geographic Patterns of Occupational Injuries (WEATHER-WORK)
2026년 8월 6일 업데이트: Sergio Gabriel Susmallian
Environmental and Geographic Patterns of Occupational Injuries: A Population-Based Retrospective Study
This study will determine whether extreme ambient temperatures increase the incidence and severity of occupational injuries in Israel, and we request Helsinki Committee approval to conduct the analysis using de-identified National Insurance and historical meteorological data, with a waiver of informed consent.
The project will link the date, time, and geographic location of recognized occupational accidents with corresponding historical temperature and humidity measurements.
The study is retrospective, observational, and involves no direct contact with participants, no intervention, and no alteration of medical care or benefit eligibility.
연구 개요
상세 설명
Occupational injuries represent an important source of preventable morbidity, permanent disability, loss of employment, and economic burden.
Rising temperatures and increasingly frequent heatwaves may impair concentration, coordination, judgment, reaction time, hydration, and physical endurance, particularly among workers in construction, agriculture, transportation, manufacturing, and other outdoor or physically demanding occupations.
However, the national relationship between ambient heat and work-related injury in Israel has not been adequately quantified.
Without reliable population-level evidence, employers, occupational-health authorities, and policymakers cannot identify temperature thresholds at which preventive measures should be intensified or determine which workers and industries are at greatest risk.
연구 유형
관찰
등록 (실제)
350000
연락처 및 위치
이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.
연구 장소
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Rishon LeZiyyon, 이스라엘, 7526557
- Israel National Insurance Institute
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참여기준
연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.
자격 기준
공부할 수 있는 나이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
아니
샘플링 방법
확률 샘플
연구 인구
The study population will include adults aged 18 years or older with occupational injuries recognized by the National Insurance Institute between January 1, 2020, and December 31, 2024.
Eligible records will be selected from the national occupational-injury administrative database and assigned to one of seven predefined geographic-climatic regions according to the workplace or accident location.
Environmental exposure will be determined by linking each injury date, time, and location to the nearest representative meteorological monitoring station.
The study will include workplace, occupational-traffic, and commuting injuries meeting the prespecified eligibility criteria.
설명
Inclusion Criteria:
- Individuals aged 18 years or older with an occupational injury recognized by the National Insurance Institute.
- Occupational injury occurring between January 1, 2020, and December 31, 2024.
- Injury occurring at the workplace, during occupational travel, or while commuting to or from work.
- Valid injury date and geographic information sufficient to assign the accident to one of the seven predefined geographic-climatic regions and the nearest representative meteorological station.
- Meteorological measurements available for the injury period and eligible matched control periods.
For time-specific analyses, a valid recorded accident time permitting linkage to the closest preceding three-hour meteorological observation.
Exclusion Criteria:
- Occupational diseases, repetitive-exposure conditions, or gradual-onset disorders without a clearly defined accident date.
- Rejected, withdrawn, or unconfirmed occupational-injury claims.
- Missing or invalid accident date or geographic information preventing linkage with meteorological data.
- Accidents occurring outside the predefined geographic-climatic regions or beyond the prespecified maximum distance from an eligible meteorological station.
- Duplicate or administratively repeated records referring to the same occupational-injury event.
- Injury events for which no eligible matched control periods or corresponding meteorological measurements are available.
- Individuals younger than 18 years.
공부 계획
이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.
연구는 어떻게 설계됩니까?
디자인 세부사항
코호트 및 개입
그룹/코호트 |
개입 / 치료 |
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Northern valleys and inland north
Occupational injuries occurring in the northern valleys and inland northern region will be assigned to this geographic-climatic division according to the location of the workplace or accident.
Meteorological exposure will be determined using data from the nearest representative monitoring station, including Dafna, Tavor Kadoorie, or Nazareth.
This region is characterized by inland climatic conditions with substantial seasonal variation in temperature and humidity.
Accident occurrence and severity will be evaluated in relation to temperature, relative humidity, wind speed, extreme heat, extreme cold, and other predefined environmental indicators.
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Ambient temperature, relative humidity, and wind speed at the occupational-injury location and time will be retrospectively obtained from the nearest representative meteorological monitoring station.
Environmental exposures will be analyzed in relation to occupational-injury occurrence and severity.
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Northern Mediterranean coast
Occupational injuries occurring along the northern Mediterranean coastal region will be assigned to this geographic-climatic division according to the location of the workplace or accident.
Meteorological exposure will be determined using data from the Haifa Technion monitoring station or the nearest available representative station.
This region is characterized by a Mediterranean coastal climate, with relatively high humidity, moderate winter temperatures, warm summers, and frequent sea-breeze effects.
Accident occurrence and severity will be evaluated in relation to ambient temperature, relative humidity, wind speed, extreme heat, extreme cold, and other predefined environmental indicators.
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Ambient temperature, relative humidity, and wind speed at the occupational-injury location and time will be retrospectively obtained from the nearest representative meteorological monitoring station.
Environmental exposures will be analyzed in relation to occupational-injury occurrence and severity.
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Central Mediterranean coast
Occupational injuries occurring within the central Mediterranean coastal region will be assigned to this geographic-climatic division according to the workplace or accident location.
Meteorological exposure will be determined using data from the Tel Aviv Coast monitoring station or the nearest available representative station.
This region is characterized by a warm Mediterranean climate, relatively high humidity, mild winters, hot summers, and frequent sea-breeze effects.
The occurrence and severity of occupational injuries will be evaluated in relation to ambient temperature, relative humidity, wind speed, extreme heat, extreme cold, and other predefined environmental indicators.
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Ambient temperature, relative humidity, and wind speed at the occupational-injury location and time will be retrospectively obtained from the nearest representative meteorological monitoring station.
Environmental exposures will be analyzed in relation to occupational-injury occurrence and severity.
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Southern Mediterranean coast
Occupational injuries occurring within the southern Mediterranean coastal region will be assigned to this geographic-climatic division according to the workplace or accident location.
Meteorological exposure will be determined using data from the Ashqelon Port monitoring station or the nearest available representative station.
This region is characterized by a warm coastal Mediterranean climate, relatively high humidity, mild winters, hot summers, and frequent sea-breeze effects.
The occurrence and severity of occupational injuries will be evaluated in relation to ambient temperature, relative humidity, wind speed, extreme heat, extreme cold, and other predefined environmental indicators.
|
Ambient temperature, relative humidity, and wind speed at the occupational-injury location and time will be retrospectively obtained from the nearest representative meteorological monitoring station.
Environmental exposures will be analyzed in relation to occupational-injury occurrence and severity.
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Central highlands
Occupational injuries occurring within the central highlands region will be assigned to this geographic-climatic division according to the workplace or accident location.
Meteorological exposure will be determined using data from the Jerusalem Centre monitoring station or the nearest available representative station.
This region is characterized by higher elevation, lower average humidity than the coastal areas, greater day-night temperature variation, cooler winters, and warm, dry summers.
The occurrence and severity of occupational injuries will be evaluated in relation to ambient temperature, relative humidity, wind speed, extreme heat, extreme cold, and other predefined environmental indicators.
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Ambient temperature, relative humidity, and wind speed at the occupational-injury location and time will be retrospectively obtained from the nearest representative meteorological monitoring station.
Environmental exposures will be analyzed in relation to occupational-injury occurrence and severity.
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Negev desert
Occupational injuries occurring within the Negev desert region will be assigned to this geographic-climatic division according to the workplace or accident location.
Meteorological exposure will be determined using data from the Avdat monitoring station or the nearest available representative station.
This region is characterized by an arid desert climate, very low relative humidity, intense solar exposure, high daytime temperatures, substantial day-night temperature variation, and limited rainfall.
The occurrence and severity of occupational injuries will be evaluated in relation to ambient temperature, relative humidity, wind speed, extreme heat, extreme cold, and other predefined environmental indicators.
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Ambient temperature, relative humidity, and wind speed at the occupational-injury location and time will be retrospectively obtained from the nearest representative meteorological monitoring station.
Environmental exposures will be analyzed in relation to occupational-injury occurrence and severity.
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Dead Sea and extreme arid region
Occupational injuries occurring within the Dead Sea and extreme arid region will be assigned to this geographic-climatic division according to the workplace or accident location.
Meteorological exposure will be determined using data from the Massada monitoring station or the nearest available representative station.
This region is characterized by very low elevation, an extremely hot and arid climate, low annual rainfall, intense solar radiation, prolonged periods of extreme heat, and substantial seasonal temperature variation.
The occurrence and severity of occupational injuries will be evaluated in relation to ambient temperature, relative humidity, extreme heat, extreme cold, and other predefined environmental indicators.
Wind speed will be analyzed when reliable measurements are available.
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Ambient temperature, relative humidity, and wind speed at the occupational-injury location and time will be retrospectively obtained from the nearest representative meteorological monitoring station.
Environmental exposures will be analyzed in relation to occupational-injury occurrence and severity.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Occurrence of Recognized Occupational Injury During Case Versus Matched Control Periods
기간: At the index injury date and matched control dates, January 1, 2020-December 31, 2024.
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The number of accepted occupational-injury events occurring during predefined case periods will be evaluated in relation to ambient temperature, relative humidity, and wind speed obtained from the nearest representative meteorological station.
Each injury period will be compared with control periods matched by geographic-climatic region, calendar year and month, day of the week, and three-hour time interval.
The association between environmental exposure and occupational-injury occurrence will be estimated using time-stratified case-crossover analysis with conditional logistic regression.
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At the index injury date and matched control dates, January 1, 2020-December 31, 2024.
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공동 작업자 및 조사자
여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.
수사관
- 연구 책임자: Eytan Ellenberg, M.D., Israel National Insurance Institute
간행물 및 유용한 링크
연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.
일반 간행물
- Calkins MM, Bonauto D, Hajat A, Lieblich M, Seixas N, Sheppard L, Spector JT. A case-crossover study of heat exposure and injury risk among outdoor construction workers in Washington State. Scand J Work Environ Health. 2019 Nov 1;45(6):588-599. doi: 10.5271/sjweh.3814. Epub 2019 Mar 14.
- Sheng R, Li C, Wang Q, Yang L, Bao J, Wang K, Ma R, Gao C, Lin S, Zhang Y, Bi P, Fu C, Huang C. Does hot weather affect work-related injury? A case-crossover study in Guangzhou, China. Int J Hyg Environ Health. 2018 Apr;221(3):423-428. doi: 10.1016/j.ijheh.2018.01.005. Epub 2018 Jan 11.
- Marinaccio A, Scortichini M, Gariazzo C, Leva A, Bonafede M, De' Donato FK, Stafoggia M, Viegi G, Michelozzi P; BEEP Collaborative Group. Nationwide epidemiological study for estimating the effect of extreme outdoor temperature on occupational injuries in Italy. Environ Int. 2019 Dec;133(Pt A):105176. doi: 10.1016/j.envint.2019.105176. Epub 2019 Oct 22.
연구 기록 날짜
이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.
연구 주요 날짜
연구 시작 (실제)
2020년 1월 1일
기본 완료 (실제)
2024년 12월 31일
연구 완료 (추정된)
2026년 12월 31일
연구 등록 날짜
최초 제출
2026년 8월 2일
QC 기준을 충족하는 최초 제출
2026년 8월 2일
처음 게시됨 (실제)
2026년 8월 6일
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
2026년 8월 7일
QC 기준을 충족하는 마지막 업데이트 제출
2026년 8월 6일
마지막으로 확인됨
2026년 8월 1일
추가 정보
이 연구와 관련된 용어
기타 연구 ID 번호
- BTL 001-2026
- work accidents and weather (기타 식별자: Israel National Insurance Institute)
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
아니요
IPD 계획 설명
Individual participant data will not be publicly shared because the study uses confidential administrative records owned and controlled by the National Insurance Institute.
Access is restricted to authorized researchers within a secure research environment and is governed by institutional confidentiality agreements, data-protection requirements, and applicable privacy legislation.
The combination of accident dates, geographic information, occupational characteristics, and disability outcomes may create a residual risk of participant re-identification even after removal of direct identifiers.
Only aggregated, disclosure-controlled results approved by the data custodian may be reported or published.
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
아니
미국 FDA 규제 기기 제품 연구
아니
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .