Deliverable D 1.3 RESULTS OF META-ANALYSIS ... - cast-eu.org

Campaigns and awareness raising strategies in traffic safety — Deliverable D-1.17.6.4 SCOPE (MASS-MEDIA)Results for mass-media campaigns are similar to those for all campaigns withrespect to campaign duration (see Table 7.46. cf. Table 7.28). Table 7.46shows little difference for scale-dependent effects of mass-media campaigns.It is notable that only 39 out of 98 local seatbelt campaigns were classified asmass-media. This confirms that the original sample contains a considerablenumber of local seatbelt campaigns that have been excluded by our definitionof mass-media campaigns. Furthermore, most of these smaller campaignsappear to have targeted a single group, as evidenced by their exclusionreducing the number of seatbelt effects from campaigns with a single targetgroup from 98 to 38, and the overall effect from +31 per cent to +22 per cent.Table 7.46 Overall effect of mass-media campaigns on road accidents and seatbelt use byduration, scale and specificity of campaign. After accounting for publication bias. Eachoverall effect is based on n individual effects (excluding any artificial effects generated bytrim-and-fill).AccidentsSeatbelt usedurationeffect(%)95%confidenceinterval (%)nSig.?(p < 0.05)effect(%)95%confidenceinterval (%)nSig.?(p < 0.05)52 weeks -12 (-20;-2) 29 yes -- -- 3 --scalelocal -8 (-15;+1) 18 no +21 (+13;+29) 39 yesregional -13 (-18;-8) 67 yes +34 (+19;+51) 20 yesnational -10 (-20;+1) 10 no +14 (-4;+36) 7 nospecificity1 target -16 (-22;-9) 57 yes +22 (+7;+38) 38 yes>1 target -4 (-18;+13) 9 no +10 (+2;+18) 6 yesnot specified 0 (-8;+8) 29 no +20 (+14;+26) 22 yes92