*2.1. Data Sources*

This study analyzed data from the Ontario Leading Indicators Project (OLIP), a cross-sectional survey conducted by researchers at the Institute for Work & Health from 2011 to 2014 in partnership with health and safety associations in Ontario, Canada. The aim of the OLIP study was to identify leading indicator measures for workplaces to improve their health and safety performance before injuries and illnesses occur. Study details are available elsewhere [21]. Briefly, OHS and wellness data were collected in collaboration with four OHS associations representing employers from most labor sectors in Ontario. The target population consisted of organizations registered with the

Workplace Safety & Insurance Board (WSIB), an organization responsible for workers' compensation to approximately 62.5% of Ontario's workforce [22]. Workplace Safety & Insurance Board compensation coverage is optional for certain workers such as independent contractors, sole proprietors, and partners in partnerships. Organizations included in the study analysis had at least one full-time employee in the following industries: education, electrical and utilities, agriculture, manufacturing, municipal, healthcare, service, pulp and paper, forestry, and mining. Other industries were not examined.
