Education on tick bite and Lyme borreliosis prevention, aimed at schoolchildren in the Netherlands: comparing the effects of an online educational video game versus a leaflet or no intervention

Table 1 Study design

Date	Total number		Total number included in analysis
	Schools	Children	Schools	Children
t1 ^a	40	1447	25	981
February-March 2012 Questionnaire 1				Game	Leaflet	Control
				group ^b	group ^b	group ^b
				254	328	399
t2	25	887	25	887
June-July 2012 Questionnaire 2				Game	Leaflet	Control
June-July 2012 Questionnaire 2				199 (78.3%)	316 (96.3%)	372 (93.2%)

^aPre-intervention study [12]
^bOnly t1 participants whose school also participated at t2 were included for analysis

ISSN: 1471-2458