Astrid ledgaard holm hia international conference granada 14 th of april 2011
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Health Impact Assessment of Commuting A quantitative analysis of changes in burden of disease due to increased commuting by bicycle in and out of Copenhagen. Astrid Ledgaard Holm HIA International Conference Granada 14 th of April 2011. Context of the study.

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Astrid Ledgaard Holm HIA International Conference Granada 14 th of April 2011

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Astrid ledgaard holm hia international conference granada 14 th of april 2011

Department of Public Health

Health Impact Assessment of CommutingA quantitative analysis of changes in burden of disease due to increased commuting by bicycle in and out of Copenhagen

Astrid Ledgaard Holm

HIA International Conference

Granada

14th of April 2011


Context of the study

Department of Public Health

Context of the study

  • 37% of everyone working or studying in Copenhagen choose to go by bike

  • By 2015 Copenhagen aims to:

    • Increase the percentage of commuters that cycle to work or education in Copenhagen to 50%

    • Reduce by 50 % the number of seriously injured cyclists


Purpose of the study

Department of Public Health

Purpose of the study

  • Dual purpose:

  • Estimate the health effect of increased commuting by bicycle in and out of Copenhagen

    • Shift commuters from passive to active transport

    • Both positive and negative effects

  • Health Impact Assessment as a decision making tool in Danish municipalities

    • Increasing interest in HIA in Denmark

    • Focus on quantification in effect estimation


  • Methods used in the study

    Department of Public Health

    Methods used in the study

    Policy, project or programme

    Screening

    Scoping

    Effect analysis

    Reporting

    Monitoring and evaluation


    Screening

    Department of Public Health

    Screening

    Policy, project or programme

    Screening tool

    Screening

    Is it relevant to perform an HIA?

    Scoping

    Effect analysis

    Reporting

    Monitoring and evaluation


    Scoping 1

    Department of Public Health

    Scoping (1)

    Policy, project or programme

    Quantitative approach (Burden of Disease)

    Screening

    Selection of relevant determinants of health

    Scoping

    Effect analysis

    Selection of relevant health outcomes

    Reporting

    Monitoring and evaluation


    Scoping 2

    Department of Public Health

    Scoping (2)

    Increased commuting by bicycle

    Project or plan

    Physical inactivity

    Air pollution

    Health determinants

    Bicycle accidents

    Changed incidence of ischemic hearth disease, ischemic stroke, type II diabetes, breast and colon cancer

    Health outcomes

    Changed burden of disease in the population of commuters

    Aggregated effect


    Effect analysis

    Department of Public Health

    Effect analysis

    Policy, project or programme

    Policy analysis and baseline description

    Impact assessment

    Screening

    Estimation of effect on health determinants

    Outcome assessment

    Scoping

    Assessment of effect on health outcomes

    Effect analysis

    Aggregation

    Assessment of aggregated effect on health outcomes

    Reporting

    Monitoring and evaluation

    Interpretation and formulation of recommendations


    Main results of effect analysis

    Department of Public Health

    Main results of effect analysis

    • Analyses of different scenarios

      • 50% bicycle commuting:

        • Reduction of 17 DALY (1,3%)

      • 50% bicycle commuting + no increase in number of bicycle accidents:

        • Reduction of 54 DALY (4,1%)

      • 50% bicycle commuting + no increase in number of accidents + shift of physically inactive commuters:

        • Reduction of 151 DALY (11,4%)

      • Very limited effect of air pollution


    Reporting

    Department of Public Health

    Reporting

    Policy, project or programme

    Screening

    Scoping

    Effect analysis

    Report and disseminate knowledge of results and recommendations

    Reporting

    Monitoring and evaluation


    Conclusion and recommendations

    Department of Public Health

    Conclusion and recommendations

    • Shifting commuters to go by bicycle has potential to lower the burden of disease in the population

  • Conditions for achieving positive health impacts of bicycle commuting:

    • Reduce effect of bicycle accidents

      • Reduce number and severity of accidents

    • Achieve maximum change in exposure

      • Shift physically inactive commuters


  • Astrid ledgaard holm hia international conference granada 14 th of april 2011

    Department of Public Health

    Thank you for your attention


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