Table 1.

Distribution of facilities involved in the study by number of deliveries per year in 2004

Number of deliveries per year	Cases, n	Referents, n	Total, n
< 500	11	21	32
500 - 999	7	12	19
1000 - 2000	9	3	12
> 2000	1	-	1
Total	28	36	64