Safety and Health Metrics (LTIFR)

operationalbehavioral · safety · rate · organization

The frequency of lost-time work-related injuries per million hours worked, capturing workplace safety performance.

How it’s computed

Formula

LTIFR = (Number of lost-time injuries / Total hours worked) * 1,000,000

Measurement model

operational (a formula over systems data) — not a reflective survey scale; “reliability” here means data quality, not internal consistency

What it operationalizes

This metric measures the construct(s) below from operational data. Through them, it connects to the meta-analytic relationship network — the bridge from what you measure operationally to what the science knows.

Programmatic access: /api/v1/metrics/metric.lost_time_injury_frequency_rate.