cricos no. 00213j preventing workplace aod impairment: using theory and evidence to inform programme...
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CRICOS No. 00213J
Preventing workplace AOD impairment: using theory and evidence to inform
programme implementationTamzyn Davey, Rod McClure, Jeremy Davey, James Freeman
Safety 2010 World Conference, Thursday 23rd September, 11:30am, Westminster Suite
Definitions
• 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)
Outline
• 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• 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
Findings
• 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
• Theory of Planned Behaviour (TpB)
Attitudes
Subjective Norms BehaviourIntentions
Perceived Behavioural
Control
Utility of the TpB in this context
Predictors ORs CIsAttitudes 1.42 0.76 2.66
Subjective Norms 3.21 1.36 7.54
Perceived Behaviour Control
2.00 1.31 2.92
Predictor ORs CIsBehavioural Intentions 11.28 7.36 17.29
Table: The predictors of behavioural intentions
Table: Predicting behaviour
Table. Coming to work impaired by AODs, and alcohol use (males)
Don’t work impaired
Have worked impaired
Total Chi-square Sig
Alcohol use
(males)AUDIT
Not harmful N 450 44 494 p < .001
% 91.1% 8.9% (-) 100%
Harmful N 205 52 257
% 79.8% 20.2% 100%
Indicates dependency
N 54 48 102
% 52.9% 47.1% (+) 100%
Table. Coming to work impaired by AODs, and cannabis use
Don’t work impaired
Have worked impaired
Total Chi-squareSig
Cannabis use
Never used N 636 77 713 p < .001% 89.2% 10.8% (-) 100%
Used more than year ago
N 270 56 326% 82.8% 17.2% 100%
Used within last year
N 31 19 50% 62.0% 38.0% (+) 100%
Used within last month
N 11 8 19% 57.9% 42.1% (+) 100%
Used within last week
N 9 8 17% 52.9% 47.1% (+) 100%
Used within last 24 hours
N 6 3 9% 66.7% 33.3% 100%
Interpretation
- 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
• 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.www.carrsq.qut.edu.autm.davey@qut.edu.au
Mark your Diaries!International Council on Alcohol, Drugs and Traffic Safety
Conference (T2013)August 2013, Brisbane Convention and Exhibition Centre
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