Table 1.

Association of Collaboration with Emergency Preparedness Staff on Mass Vaccination Event in 2 Years Prior to 2009-10 H1N1 Influenza Vaccination Campaign with Immunization Program Managers' Perceived Effectiveness of Emergency Preparedness Staff

	Number of Immunization Programs That Had Collaborated with EP Program			Number of Immunization Programs That Had Not Collaborated with EP Program
	Effective/ very effective	Ineffective/very ineffective/neither effective nor ineffective	Total	Effective/ very effective	Ineffective/very ineffective/neither effective nor ineffective	Total	p-value*
How effective was your EP staff in:
Allocating scarce vaccine inventory to providers (n=37)	79%	21%	24	38%	62%	13	0.03
Facilitating decisions about who should receive scarce vaccine (n=43)	69%	31%	29	36%	64%	14	0.05
Developing risk communications materials about H1N1 influenza vaccine:
For providers (n=44)	66%	34%	32	25%	75%	12	0.02
For the public (n=45)	69%	31%	32	31%	69%	13	0.04
Supplementing immunization program staff (n=45)	72%	28%	32	54%	46%	13	0.30
Facilitating your jurisdiction's overall H1N1 influenza vaccination campaign (n=51)	78%	22%	36	60%	40%	15	0.30

^*p-values ≤0.05 statistically significant