Brief Summary

Firefighters, police, military personnel and pilots are all shown to have a higher incidence of prostate cancer than the general population. A possible explanation for this is that these four groups of employees need regular mandatory health-checkups. If these checkups increase the chances of having a PSA or DRE performed one could expect the workers in question to have a higher probability than the general population of being diagnosed with prostate cancer. If this is the case the four groups should have cancers that are lower grade and have better survival. The investigators wish to examine this by comparing the four groups with a control group made up of all other workers with regards to prognostic factors at the time of diagnosis and survival rates. This will be done by extracting data from the Cancer Registry of Norway, coupled with employment data from Statistics Norway. This study is also a part of a project on cancer in firefighters. If the prostate cancers in firefighters differ significantly from the other three specified groups, this could point to an exposure specific for firefighters, e.g. fire smoke, as an etiologic factor.

Trial Health

On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment

137,536

participants targeted

Target at P75+ for all trials

Timeline

Completed

Started Feb 2020

Geographic Reach

1 country

1 active site

Status

completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

1 day study duration

First Submitted

Initial submission to the registry

March 28, 2019

Completed

1 day until next milestone

First Posted

Study publicly available on registry

March 29, 2019

Completed

10 months until next milestone

Study Start

First participant enrolled

February 1, 2020

Completed

1 day until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 2, 2020

Completed

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 2, 2020

Completed

Last Updated

March 1, 2021

Status Verified

February 1, 2021

Enrollment Period

1 day

First QC Date

March 28, 2019

Last Update Submit

February 24, 2021

Conditions

Prostate Cancer

Outcome Measures

Primary Outcomes (1)

Cause-specific mortality rate for prostate cancer
From January 1st 1960 until December 31st 2018