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Unified Medical Language System® (UMLS®)

Statistics - 2018AB Release

Official Counts:
Release version: 2018AB
Release format: RRF
Concepts: 3,822,832
Number of concept names (AUIs): 14,438,243
Number of distinct concept names (SUIs): 12,187,892
Number of distinct normalized concept names (LUIs): 11,139,620
Number of sources (distinct source families by language): 155
Number of sources contributing concept names: 207
Number of languages contributing concept names: 25

Name Count by Language:

LanguageName Count% of Metathesaurus
ENG1031404771.44%
SPA147095010.19%
FRE4246432.94%
JPN3233222.24%
POR3005832.08%
DUT2867181.99%
ITA2371391.64%
GER2330001.61%
RUS1809631.25%
CZE1806931.25%
HUN1049650.73%
CHI776220.54%
NOR617400.43%
TUR511140.35%
POL501130.35%
KOR386640.27%
EST312040.22%
SWE297410.21%
FIN254890.18%
SCR99840.07%
GRE22410.02%
LAV14050.01%
DAN7230.01%
BAQ6950%
HEB4850%

 

Name Count by Source Restriction Level (SRL):

SRLSource Count% of Sources
0714918449.52%
11404380.97%
2221560.15%
3406076428.13%
41823551.26%
9288334619.97%
0+4733153950.78%

 

Count of Atoms by Suppressibility:

Suppressibility StatusName Count% of Metathesaurus
Y7014154.86%
N1230236885.21%
O14276889.89%
E67720.05%

 

Source Counts by Language (from MRSAB):

LanguageName count% of Metathesaurus
ENG13766.18%
FRE94.35%
GER94.35%
SPA94.35%
DUT73.38%
ITA62.9%
POR52.42%
KOR31.45%
JPN20.97%
* 20.97%
RUS20.97%
SWE20.97%
NOR20.97%
CZE20.97%
FIN20.97%
HUN20.97%
LAV10.48%
GRE10.48%
TUR10.48%
HEB10.48%
DAN10.48%
BAQ10.48%
SCR10.48%
CHI10.48%
EST10.48%
POL10.48%

*Note: 2 sources contribute relationships which have no associated language values.