Infant mortality in Brazil attributable to inborn errors of metabolism associated with sudden death: a time-series study (2002–2014)

Table 2 Infant mortality attributable to IEMs, stratified by region of Brazil, 2002–2014

Region of Brazil	Cases (n)	Birth per case (n)	Relative frequency (%)	Rate^a	95% CI
South	46	396,105	23.1	1.20	0.9–1.5
Southeast	80	1,183,689	40.2	0.68	0.54–0.84
Center-West	12	245,199	6.0	0.49	2.50–0.85
Northeast	43	833,562	21.6	0.52	0.37–0.69
North	18	320,674	9.0	0.56	0.33–0.89
Brazil	199	2,979,259	100	0.67	0.58–0.77

ISSN: 1471-2431