Recruitment strategies in a prospective longitudinal family study on parents with obesity and their toddlers

BMC Public Health

Table 1 Relative effectiveness of recruitment strategies according to cost (per participant) and enrolment yields

	Lower cost^a	Higher cost^a
Upper third^b	Community-focused strategies: ▪Posters	Kindergarten: ▪Phone contacts
Middle third^b	Media: ▪Internet
Lower third^b	Media: ▪Newspapers, Radio Community-focused strategies: ▪Recommendations Health professionals	Community-focused strategies: ▪Flyers ▪Advertisement on public transport ▪Face-to-face recruitment at public festivals, at clinic, city center/shopping center Kindergarten: ▪Email contacts

^aMedian cost of €23.33 divides the strategies into lower and higher cost portions based on whether the estimated cost was below/equal or above the median
^bRanking of relative effectiveness is divided into upper (3.80–5.70% enrolled families), middle (1.90–3.79% enrolled families), and lower (<1.89 enrolled families) thirds. ▪/•Subcategories are named if there were differences in cost and relative effectiveness in a main strategy

ISSN: 1471-2458