In the General System of Occupational Risks (SGRL), monitoring indicators have been defined for the affiliated working population, such as accident indicators (refer to the number of accidents classified with respect to the affiliated population in a given period) and occupational illnesses (corresponds to the number of diseases classified as work-related with respect to the affiliated population in a given period).

The indicators of accidents and occupational illnesses seek to measure the impact of the promotion and prevention activities that are carried out in organizations and Occupational Risk Administrators (ARL) obedient to the policies issued by the National Government in the Ministries of Health and Social Protection and Labor.[1]​.

The constant K can take three (3) values: 200,000 (small and medium-sized companies that work 5 days a week), 240,000 (small and medium-sized companies that work 6 days a week) and 1,000,000 (large companies).

These Indicators are calculated in time periods determined by the organization, they can be monthly, bimonthly, quarterly, semiannual, annual or those designated by the company as a control parameter.

Frequency index

It is the relationship between the total number of Work Accidents (AT) with and without disability, recorded in a period and the total Man Hours Worked (HHT) during a period multiplied by a constant K. The result is interpreted as the number of AT that occurred during the last year per 100 full-time workers.[2]​.

Severity Index

It is the relationship between the number of days lost and charged due to work accidents, during a period and the total HHT during a period and multiplied by K.[2]​.

Disabling Injury Rate

It corresponds to the relationship between the frequency and severity indices of Work Accidents with Disability. It is a global index of the behavior of disabling injuries that has no unit; its usefulness lies in the comparison between different periods.[2]​

This indicator is dimensionless, that is, it has no units.

Incident indicator

It reflects the presentation of new events in a population in a given period.[3]​.

Prevalence indicator

It reflects the new and old events of a population in a given period.[3]​.