Analysis of Factors Influencing Telephone Call Response Rate in an Epidemiological Study

Table 2

Intensity of the mass media campaign in each region.

	RR; Mean (95% CI)	TNA	Appearance rate per media outlet	Intensity
Almeria	41.23% (38.3–43.6)	15	1.50	1.14
Zaragoza	66.01% (62.9–69.0)	21	1.00	2.00
Seville	62.95% (59.8–66.0)	23	0.67	0.67

RR = response rate; TNA = total number of appearances in mass media.