Table 2.

Neonatal deaths (0–28 days) in Japan and Tohoku, 2002–2012, by cause and gender

Japan								Tohoku
Males				Females				Males				Females
Rank	Category (ICD)	Freq.	%	Rank	Category (ICD)	Freq.	%	Rank	Category (ICD)	Freq.	%	Rank	Category (ICD)	Freq.	%
1	Congenital hypoplasia and dysplasia of the lung	446	5.1	1	Trisomy 18	434	5.8	1	Extremely low birth weight newborn	19	5.4	1	Severe neonatal asphyxia	19	5.9
2	Trisomy 18	390	4.5	2	Congenital hypoplasia and dysplasia of the lung	327	4.4	2	Bacterial sepsis of newborn, unspecified	17	4.8	2	Congenital hypoplasia and dysplasia of the lung	17	5.3
3	Severe neonatal asphyxia	354	4.1	3	Extremely low birth weight newborn	326	4.3	3	Severe neonatal asphyxia	15	4.2	3	Primary atelectasis of newborn	13	4.0
4	Extremely low birth weight newborn	348	4.0	4	Primary atelectasis of newborn	302	4.0	4	Congenital hypoplasia and dysplasia of the lung	15	4.2	4	Trisomy 18	13	4.0
5	Primary atelectasis of newborn	331	3.8	5	Severe neonatal asphyxia	299	4.0	5	Birth-related asphyxia	13	3.7	5	Extremely low birth weight newborn	10	3.1
	All other	6823	78.5		All other	5808	77.5		All other	276	77.7		All other	250	77.6
	Total	8692	100.0		Total	7496	100.0		Total	355	100.0		Total	322	100.0

Note. ICD International Classification of Diseases