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Fig. 4 | Orphanet Journal of Rare Diseases

Fig. 4

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

Fig. 4

Heatmap of the number of diseases by prevalence category in Orphanet and NDB. The figure showed the relationship of the prevalence categories between Orphanet and NDB data. We omitted the values of “Specific population, “Not yet documented,” and “Unknown” in Orphanet. As Orphanet sometimes displays more than one prevalence category for a disease, we adopted a median category to represent comparability

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Orphanet Journal of Rare Diseases

ISSN: 1750-1172