Skip to Content
Archives
NLM Home | About the Archives

Skip to Content
United States National Library of Medicine National Institutes of Health

Overall Results for 2004 MEDLINE/PubMed® Baseline: 12,421,396 Citations Found

Element Name Citations Occurrences Min/Avg/Max Occurrences Min/Avg/Max Length
PMID 12,421,396 12,421,396 1/1.00/1 1/7.12/8
DateCreated 12,421,396 12,421,396 1/1.00/1 8/8.00/8
DateCompleted 12,421,396 12,421,396 1/1.00/1 8/8.00/8
DateRevised 11,824,724 11,824,724 0/1.00/1 8/8.00/8
ISSN 12,329,487 12,329,487 0/1.00/1 8/9.00/9
Volume 12,125,817 12,125,817 0/1.00/1 1/2.24/50
Issue 11,742,900 11,742,900 0/1.00/1 1/1.41/30
PubDate 12,421,396 12,421,396 1/1.00/1 4/7.39/53
ArticleTitle 12,421,396 12,421,396 1/1.00/1 2/83.62/834
MedlinePgn 12,421,396 12,421,396 1/1.00/1 1/5.58/66
Abstract        
    AbstractText 6,755,349 6,755,349 0/1.00/1 2/1140.15/9990
    CopyrightInformation 134,604 134,604 0/1.00/1 7/35.58/1000
Affiliation 5,537,870 5,537,870 0/1.00/1 1/88.51/266
Author 12,141,292 38,531,226 0/3.17/744 1/10.67/375
    LastName 12,133,372 38,509,153 0/3.17/743 1/6.95/163
    ForeName 12,127,209 38,478,799 0/3.17/743 1/2.24/56
    Initials 12,127,016 38,477,437 0/3.17/743 1/1.45/6
    Suffix 254,124 268,996 0/1.06/5 2/2.18/3
    CollectiveName 20,929 22,073 0/1.05/21 1/44.16/375
Language 12,421,396 12,436,684 1/1.00/4 3/3.00/3
Grant 1,037,778 1,759,448 0/1.70/50 4/15.12/49
    GrantID 1,037,778 1,759,448 0/1.70/50 1/8.78/44
    Acronym 1,010,964 1,707,990 0/1.69/50 2/2.00/2
    Agency 1,037,778 1,759,448 0/1.70/50 2/4.40/7
DataBank 134,155 135,574 0/1.01/4 6/41.16/47047
    DataBankName 134,155 135,574 0/1.01/4 3/6.77/9
    AccessionNumber 134,155 674,370 0/5.03/5880 1/6.91/10
PublicationType 12,421,396 16,622,348 1/1.34/8 4/14.00/37
ElectronicPubDate 67,226 67,226 0/1.00/1 8/8.00/8
VernacularTitle 2,339,261 2,339,261 0/1.00/1 3/80.98/614
Country 12,421,396 12,421,396 1/1.00/1 3/9.87/35
MedlineTA 12,421,396 12,421,396 1/1.00/1 1/15.33/96
NlmUniqueID 12,421,396 12,421,396 1/1.00/1 7/7.13/9
Chemical 6,739,741 24,836,064 0/3.69/50 4/20.10/244
    RegistryNumber 6,739,741 24,836,064 0/3.69/50 1/4.60/14
    NameOfSubstance 6,739,741 24,836,064 0/3.69/50 2/15.51/243
CitationSubset 12,375,544 14,671,935 0/1.19/6 1/1.98/3
GeneSymbol 59,509 126,195 0/2.12/25 1/4.51/41
CommentsCorrections 479,410 581,916 0/1.21/23 9/44.65/500
    RetractionOf 447 462 0/1.03/8 37/99.71/371
    RetractionIn 517 518 0/1.00/2 22/69.91/341
    SummaryForPatientsIn 229 238 0/1.04/3 33/45.43/55
    OriginalReportIn 231 239 0/1.03/3 33/47.94/68
    CommentOn 234,318 261,502 0/1.12/22 19/44.86/120
    CommentIn 209,997 264,506 0/1.26/23 21/45.72/104
    ErratumIn 49,887 50,652 0/1.02/3 9/37.02/500
    ErratumFor 934 937 0/1.00/2 30/45.50/86
    RepublishedFrom 890 893 0/1.00/2 19/43.35/110
    RepublishedIn 673 673 0/1.00/1 20/45.42/81
    UpdateIn 693 701 0/1.01/2 37/50.82/54
    UpdateOf 594 595 0/1.00/2 44/52.98/53
MeshHeading 12,372,884 132,975,700 0/10.75/68 2/19.40/149
    DescriptorName 12,372,884 132,975,700 0/10.75/68 2/13.79/88
        Descriptor Major 5,985,929 10,349,265 0/1.73/37  
        Descriptor Not Major 12,335,063 122,626,435 0/9.94/60  
QualifierName 11,389,066 66,354,422 0/5.83/60 5/11.26/29
        Qualifier Major 10,787,573 28,487,753 0/2.64/28  
        Qualifier Not Major 9,139,544 37,866,669 0/4.14/55  
    Descriptor and/or Qualifier Major 12,244,369 37,995,887 0/3.10/37  
NumberOfReferences 972,056 972,056 0/1.00/1 1/2.08/4
PersonalNameSubject 105,459 119,321 0/1.13/17 3/11.08/74
    LastName 105,459 119,321 0/1.13/17 2/7.51/69
    ForeName 102,098 115,022 0/1.13/17 1/2.25/41
    Initials 101,910 114,790 0/1.13/17 1/1.43/5
    Suffix 809 825 0/1.02/2 2/2.10/3
OtherID 198,574 282,392 0/1.42/4 1/6.95/16
OtherAbstract        
    AbstractText 62,037 62,077 0/1.00/2 60/1282.37/4096
    CopyrightInformation 1,860 1,860 0/1.00/1 11/16.80/17
Keyword 136,353 1,610,619 0/11.81/98 2/16.73/123
    Keyword Major 90,497 541,564 0/5.98/50  
    Keyword Not Major 134,347 1,069,055 0/7.96/88  
GeneralNote 121,943 239,405 0/1.96/32 1/35.13/694
SpaceFlightMission 3,756 17,392 0/4.63/12 6/13.91/28
Investigator 8,001 9,228 0/1.15/6 9/30.92/96
    LastName 8,001 9,228 0/1.15/6 2/6.70/16
    ForeName 7,994 9,218 0/1.15/6 1/2.71/9
    Initials 7,993 9,217 0/1.15/6 1/1.84/2
    Suffix 11 11 0/1.00/1 2/2.09/3
    Affiliation 8,000 9,227 0/1.15/6 3/19.67/83


Average Record Size in Bytes 1,166


Words in Title Average 11.54 Max 249
Words in Abstract Average 174.22 Max 1,612


AB Size Zero 5,666,047
AB Size < 1,000 2,908,143
AB Size 1,000 - 1,999 3,476,998
AB Size 2,000 - 2,999 352,831
AB Size 3,000 - 3,999 15,717
AB Size 4,000 - 4,999 1,391
AB Size > 5,000 269


Number of MH Occurrences with NO SHs 83,139,599
Number of MH Occurrences with ONE SH 36,878,973
Number of MH Occurrences with SHs 49,836,101


CollectiveName Counts:

Number of Citations containing ONLY CollectiveName 7,920
Number of Citations containing BOTH CollectiveName AND LastName 13,009


MedlineCitation Status Counts:

Completed 12,375,544
In-Process 0
In-Data-Review 0
PubMed-not-MEDLINE 45,852


Owner Counts:

Owner MedlineCitation GeneralNote Keyword
NLM 12,312,115 0 0
NASA 9,555 421 11,491
PIP 37,530 63,830 69,276
KIE 25,953 175,135 56,057
HSR 2,277 19 0
HMD 33,966 0 0
SIS 0 0 0
NOTNLM 0 0 0



Statistical Reports on MEDLINE/PubMed Baseline Data

First published: 30 September 2004
Last updated: 08 October 2004
Date Archived: 12 April 2007
Metadata | Permanence level: Permanent: Dynamic Content