Table 1. Births and sample for newborn screening and referral level of participating centers.

City	Hospitals or maternal-child health care center	Referral level	Births 2009 at the hospital or center	Sample (% total births at the hospital or center)
Armenia (Andean)	1. Hospital Universitario San Juan de Dios	III	3,959	753 9%)
	2. Hospital La Misericordia	II	1,262	614 8%)
	3. Hospital del Sur	I	418	196 (46,8%)
Barranquilla (Caribbean)	4. Hospital Universidad del Norte	III	1,164	1,043 (89%)
	5. Hospital Santa Mónica	II	2,505	688 (27%)
	6. Hospital Niño Jésus	II	2,702	1,170 (43%)
Bogota (Center)	7. Clínica Colombia	III	4,714	544 1.5%)
	8. Hospital de Engativá	II	2,730	1,971 (72.2%)
	9. Hospital La Victoria	III	3,913	301 .6%)
	10. Hospital Simón Bolívar	III	1,771	545 0.7%)
	11. Instituto Materno Infantil	III	3,026	2,037 (67.3%)
Bucaramanga (Eastern)	12. Hospital de Floridablanca	II	1,700	981 7.7%)
	13. UIMIST	I	1,181	659 5.8%)
	14. Los Comuneros	III	1,068	596 6%)
	15. Local del Norte	I	1,040	560 3%)
	16. ESE Giron	I	362	202 (55%)
Cucuta (Eastern)	17. Hospital Erasmo Meoz	III	3,653	1,124 (30.7%)
Florencia Amazonian)	18. Clínica Medilaser	III	1,105	510 (46.1%)
Riohacha (Caribbean)	19. Hospital Nuestra Señora de los Remedios	III	2,603	801 (30.7%)