Preventing workplace AOD
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Preventing workplace AOD impairment: using theory and evidence to inform programme implementation. Tamzyn Davey , Rod McClure, Jeremy Davey, James Freeman Safety 2010 World Conference, Thursday 23 rd September, 11:30am, Westminster Suite . CRICOS No. 00213J. Definitions.

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Tamzyn Davey, Rod McClure, Jeremy Davey, James Freeman

Safety 2010 World Conference, Thursday 23rd September, 11:30am, Westminster Suite

CRICOS No. 00213J


  • AODs = alcohol and/or other illicit drugs (marijuana, amphetamines, cocaine, & heroin)

  • Workplace AOD impairment= using alcohol and or other illicit drugs before or during work (includes ‘hangover’ at work)


  • Context – PhD research programme

  • Background – workplace impairment

  • Findings

    • Utility of Theory of Planned Behaviour

    • Relationship between employee AOD use and workplace impairment

  • Implications for workplace policy and programmes

Background context
Background & Context

  • AODs problem in workplace because affects coordination & judgement - injury/property damage

  • Australian industries obligated under OHS legislation to ensure workers’ safety - implementation workplace AOD policies to avoid culpabilities for AOD-related injury/death

  • PhD research programme

    • Evaluating process and impact of workplace AOD policy in state-wide industry in Australia, to reduce impairment and prevent injury


  • Participants: 1163 employees (98% response rate) from 12 sites across Queensland, Australia

  • Data: survey pre-AOD policy implementation eliciting employee:

    • Demographics

    • Knowledge

    • Behavioural Intentions

    • Deterrence

    • AOD use

    • Self-reported behaviour

Findings behavioural intentions and behaviour
Findings – Behavioural Intentions and Behaviour

  • Theory of Planned Behaviour (TpB)


Subjective Norms



Perceived Behavioural Control

Utility of the tpb in this context
Utility of the TpB in this context

Table: The predictors of behavioural intentions

Table: Predicting behaviour

Interpretation (males)

  • Not surprising: high levels of drinking or using drugs (esp dependency) would mean coming to work impaired, more likely

    • But, contrary to literature on workplace AOD impairment

Implications (males)

  • TpB

    • Understanding mechanism by which behaviour change occurs in context of workplace AOD impairment

    • Targeting TpB constructs may improve impact of workplace programmes in reducing AOD impairment

  • AOD use

    • Reducing general levels of drinking & drug use likely to result in reduction of workplace AOD impairment

Thank you. (males)

[email protected]

Mark your Diaries!

International Council on Alcohol, Drugs and Traffic Safety Conference (T2013)

August 2013, Brisbane Convention and Exhibition Centre