Additional file 1: Text S1. Materials and data collection.
The Authors would like to thank Matthew O'Reilly and Nathalie Elliot for assistance in development of materials and data collection.
16 These included ability to recruit the desired number of villages and participants per village, the acceptability of randomisation procedures and interventions, ability to deliver interventions as planned, the value of incorporating a control intervention, and participants' understanding of intervention materials and data collection tools.
Following a model used previously to successfully reduce central line-associated bloodstream infections (CLABSI) state-wide [ 15], the Keystone Center acts as a support and resource center providing educational materials and data collection forms, but relies on local hospitals to implement the Bladder Bundle.
The forum was consulted on a variety of practical aspects of the study, such as the design of recruitment materials and data collection questionnaires, the best ways to introduce the study to potential participants, suggestions on retention of the study sample and effective follow-up methods.
In any given multidisciplinary health investigation such as the ABC study, it is critical that the materials, instruments and data collection tools used in the dental component are minimal, light, fool-proof, durable, expendable and able to be set down and packed up again quickly in a range of environments whilst still allowing the privacy of participants to be respected.
The subjects, stimulus material, experimental design and data collection was reported in detail in [ 12].
All materials used during recruitment and data collection were entitled 'short-term changes in health parameters' to prevent any alterations in eating or activity patterns because of their involvement in the study.
Details regarding site selection, project management, and data collection materials and methods are described elsewhere (19).
