organize consultations and to disseminate the guide

A steering group, which comprised the authors of this report plus the London Health Observatory's HIA facilitator while she was in post, was set up to draft and amend the guide, to organize consultations and to disseminate the guide. Fig. 2 shows the various stages involved in the formulation (phase 1), development (phase 2) and testing (phase 3) of a guide to reviewing evidence for use in HIA. The entire process involved substantial consultation with individuals who carry out evidence reviews for use in HIAs, such as HIA academics, HIA tiffany jewelry on sale and public health professionals (Table 1). A modified Delphi technique involving iteration and feedback was used at each stage during the many consultations on, and revisions to, the guide.

Members of an advisory tiffany jewelry on sale were asked to comment on the contents of the developing guide throughout the process. The advisory group and the individuals interviewed in the qualitative research study in phase 1, the invitees and volun- teers who piloted and conducted a peer- review of the developing guide in phase 2, and tiffany jewelry on sale who tested the final guide in phase 3 were all independent of each other, and no individual was involved in more than one phase.Wider consultation, with feedback from numerous additional individuals, was implemented by members of the steering group who presented various preliminary versions of the guide at HIA training courses, at workshops at international HIA and national public health conferences, and via email networks.

A scoping review of the literature and of existing guidelines on reviewing different types of research (i.e. tiffany jewelry on sale and qualitative) was undertaken to identify criteria for the principles underpinning the assessment of research evidence likely to be relevant to HIA. Key themes and criteria were collated and used to struc- ture the content of an outline of the guide that was presented to the advisory group for comment (Fig. 2).The aim of the qualitative research study was to determine the most practi- cal, relevant and accessible format for the guide. A series of in-depth, face-to-face interviews lasting about 75 minutes each was conducted with 10 representatives of the guide's target audience. Participants were recruited from three cities in Eng- land: London, Birmingham and Cambridge. To achieve a cross-section of the different sectors, one individual involved in each of commissioning, conducting and appraising HIA evidence reviews was recruited from each of the three cities and at least one tiffany jewlery on sale from each of local government, a public health authority and the independent (commercial) sector was recruited from each city.