UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000053799
Receipt number R000061405
Scientific Title Type of workplace violence against emergency medical services
Date of disclosure of the study information 2024/03/08
Last modified on 2025/10/12 16:05:15

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Basic information

Public title

Workplace violence against emergency medical services

Acronym

Workplace violence against EMS

Scientific Title

Type of workplace violence against emergency medical services

Scientific Title:Acronym

Type of workplace violence against EMS

Region

Japan


Condition

Condition

Violence against emergency medical services

Classification by specialty

Emergency medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To develop descriptive statistics concerning workplace violence against emergency medical services.

Basic objectives2

Others

Basic objectives -Others

To categorize workplace violence against emergency medical services.

Trial characteristics_1

Exploratory

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

Type of violence

Key secondary outcomes

characteristics of the assailant including their sex, age, and alcohol use, circumstances under suspicion of being related to the incident, the assailant's verbal and behavioral patterns preceding the violence, type of violence, presence of a fire company at the scene prior to the violence


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Workplace violence against EMS registered in ambulance units' records for 5 years from January 1, 2018 through December 31, 2022.

Key exclusion criteria

Cases in which the records are reviewed and no exact violence are found.

Target sample size

120


Research contact person

Name of lead principal investigator

1st name Tetsuya
Middle name
Last name SHIMIZU

Organization

Third fire district headquarter, Tokyo Fire Department

Division name

Administration Branch

Zip code

1540024

Address

33-21, Sangenjyaya 2 choume, Setagaya-ku, Tokyo

TEL

03-3418-0119

Email

dai3honbu@tfd.metro.tokyo.jp


Public contact

Name of contact person

1st name Tetsuya
Middle name
Last name SHIMIZU

Organization

Third fire district headquarter, Tokyo Fire Department

Division name

Administration Branch

Zip code

1540024

Address

33-21, Sangenjyaya 2 choume, Setagaya-ku, Tokyo

TEL

03-3418-0119

Homepage URL


Email

dai3honbu@tfd.metro.tokyo.jp


Sponsor or person

Institute

Third fire district headquarter, Tokyo Fire Department

Institute

Department

Personal name

SHIMIZU Tetsuya


Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

The Japanese Society for Emergency Medicine research ethics committee

Address

2-3, Nakano 2 choume, Nakano-ku, Tokyo

Tel

03-3384-8177

Email

jsem_jimu@herusu-shuppan.co.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2024 Year 03 Month 08 Day


Related information

URL releasing protocol


Publication of results

Published


Result

URL related to results and publications


Number of participants that the trial has enrolled

122

Results

There were 122 reported incidents of workplace violence. The majority of assailants were men, and had been drinking. Refusal of observation or transportation for the patient was identified as the most common circumstance that was suspected of being related to the violence. Verbal abuse and refusal to answer questions were the most common verbal and behavioral patterns by assailants preceding the violence.

Results date posted

2025 Year 10 Month 12 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2024 Year 03 Month 08 Day

Date of IRB

2024 Year 10 Month 22 Day

Anticipated trial start date

2024 Year 10 Month 22 Day

Last follow-up date

2025 Year 01 Month 06 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Workplace violence against EMS registered in ambulance units' records for 5 years from January 1, 2018 through December 31, 2022 will be examined. A data set will be compiled, encompassing characteristics of the assailant, including their sex, age, and alcohol use. The data set also will includ the circumstances under suspicion of being related to the incident, the assailant's verbal and behavioral patterns preceding the violence, type of violence, and the presence of a fire company at the scene prior to the violence.


Management information

Registered date

2024 Year 03 Month 07 Day

Last modified on

2025 Year 10 Month 12 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000061405