Regarding OHS policy, it was formulated by modifying the protocol
defined by Fernández-Muñiz et al. (2007, 2009) to measure
the ‘‘safety policy’’ variable. The respondents were asked to indicate
the level of formalisation of a series of activities related to
OHS planning. OHS training and involvement was constructed by
adapting the protocol used by Fernández-Muñiz et al. (2007,
2009) to measure the ‘‘employee incentives’’ and ‘‘training in occupational
hazard’’ variables. The respondents were asked to indicate
the level of formalisation of a series of activities connected to training
and employee involvement.