Primary care research: difficulties recruiting preschool children to clinical trials

Objectives.  The aims of the present study were to report difficulties experienced recruiting preschool children to a clinical trial and to report the acceptability of a dental intervention to their parents. Design.  The study was a randomized controlled trial (RCT). Setting.  The study took place i...

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Bibliographic Details
Published in:International journal of paediatric dentistry 2005-05, Vol.15 (3), p.197-204
Main Authors: CHADWICK, B. L., TREASURE, E. T.
Format: Article
Language:English
Subjects:
Child, Preschool
Dental Research - methods
Dentistry
Humans
Infant
Parents - psychology
Patient Acceptance of Health Care
Patient Dropouts
Patient Selection
Pit and Fissure Sealants
Primary Health Care
Randomized Controlled Trials as Topic
Wales
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Summary:Objectives.  The aims of the present study were to report difficulties experienced recruiting preschool children to a clinical trial and to report the acceptability of a dental intervention to their parents. Design.  The study was a randomized controlled trial (RCT). Setting.  The study took place in community dental clinics, health centres and patient homes. Sample and Methods.  Health visitors were used to recruit 508 children aged between 18 and 30 months from high caries areas of South Wales. Children with caries‐free first primary molars were entered into a placebo‐controlled individual RCT of fissure sealants. All children received a standard package of dental health education. Children in the test group had their first primary molars sealed with glass ionomer. All children were reviewed once. Families were asked to rate the acceptability of procedures. Results.  Health visitors referred 1228 children for screening, but only 547 were seen (44·5%) and 508 subjects were recruited to the trial. Of these, 449 (88·4%) were seen at follow‐up. Some 667 children missed 1610 visits at baseline, and 373 of those recruited missed an appointment. At follow‐up, 1056 appointments were staffed to review 449 children. Three‐quarters of parents reported the examination to be very easy. Conclusions.  Preschool children are difficult to access for community trials. Dental examinations and sealant placement were acceptable to the majority of families who were seen.
ISSN:0960-7439
1365-263X
DOI:10.1111/j.1365-263X.2005.00634.x