Public Health Nutrition

Interventions

Strengthening the rigour of population-wide, community-based obesity prevention evaluations

Luke Wolfendena1 c1 p1 and John Wiggersa1a2

a1 School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Newcastle, New South Wales, Australia

a2 Hunter New England Population Health, Newcastle, New South Wales, Australia

Abstract

Objective The aim of the present study was to review the methodological literature regarding evaluation methods for complex public health interventions broadly and, based on such methods, to critically reflect on the evaluation of contemporary community-based obesity prevention programmes.

Design A systematic review of the methods and community-based literature was performed by one reviewer.

Results The review identified that there is considerable scope to improve the rigour of community-based obesity prevention programmes through: prospective trial registration; the use of more rigorous research designs, particularly where routine databases including an objective measure of adiposity are available; implementing strategies to quantify and reduce the risk of selective non-participation bias; the development and use of validated instruments to assess intervention impacts; reporting of intervention process and context information; and more comprehensive analyses of trial outcomes.

Conclusions To maximise the quality and utility of community-based obesity prevention evaluations, programme implementers and evaluators need to carefully examine the strengths and pitfalls of evaluation decisions and seek to maximise evaluation rigour in the context of political, resource and practical constraints.

(Received March 19 2012)

(Revised July 23 2012)

(Accepted September 10 2012)

(Online publication November 19 2012)

Keywords

  • Community;
  • Obesity;
  • Evaluation;
  • Methodology;
  • Prevention

Correspondence

c1 Corresponding author: Email luke.wolfenden@hnehealth.nsw.gov.au

p1 Address for correspondence: c/o Hunter New England Population Health, Locked Bag 10, Wallsend, Newcastle, NSW 2298, Australia.

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