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Table 2 Differences in the average age of death in NDB and Orphanet

From: Nationwide comprehensive epidemiological study of rare diseases in Japan using a health insurance claims database

NDB

Orphanet

Number of diseases

Case 3. Average age of death is later in NDB than that in Orphanet

Childhood

Stillbirth, infantile

1

Acquired

Infantile, adolescent, late childhood

2

Elderly

Infantile, stillbirth, early childhood, adolescent

8

Case 4. Average age of death is earlier in NDB than that in Orphanet

Congenital

Adult, elderly

4

Childhood

Elderly

1