Table 1.

Characteristics of program participants

Variable	Category	n (%)
Previous MMG	Yes	10,404 (57.9%)
	No	7,560 (42.1%)
Screening unit	Mobile Unit	10,521 (58.6%)
	Fixed Unit	7,443 (41.4%)
Age group (years)	40–49	8,659 (48.2%)
	50–59	6,179 (34.4%)
	60–69	3,126 (17.4%)
Strategies for invitation	Community health agents	8,406 (46.8%)
	Physicians	4,861 (27.1%)
	Radio announcements	2,219 (12.4%)
	Conversations with friends	1,026 (5.7%)
	Other reasons	1,452 (8.1%)
Total		17,964 (100.0%)

Abbreviation: MMG = mammography.