Table 1.

Outcomes of an awareness campaign initiated by the French national health insurance for the dTcaP booster vaccine for adults aged 25 years in the 19 cantons of the Ardennes region

	Delivery of the dTcaP booster vaccine N (%)	Non-delivery of the dTcaP booster vaccine N (%)	p-value
CPAM awareness campaign	331	1,644	0.29
Intervention group*	231 (17.4)	1,098 (82.6)
Control group	100 (15.5)	546 (84.5)
Consultation with a general practitioner†			< 0.0001
Intervention group	275 (19.1)	1,167 (80.9)
Control group	56 (10.5)	477 (89.5)

*Ten cantons were randomly selected to constitute the intervention group (INT) and nine cantons made up the control group (CON). †at least once within 12 months after the start of the awareness campaign. CPAM; Caisse Primaire d’Assurance Maladie