United States National Library of Medicine National Institutes of Health

2007 MEDLINE/PubMed Baseline Excluding OLDMEDLINE Data: 14,359,553 Citations Found

Element Name	Citations	Occurrences	Min/Avg/Max Occurrences	Min/Avg/Max Length
PMID	14,359,553	14,359,553	1/1.00/1	1/7.24/8
DateCreated	14,359,553	14,359,553	1/1.00/1	8/8.00/8
DateCompleted	14,359,553	14,359,553	1/1.00/1	8/8.00/8
DateRevised	13,737,934	13,737,934	0/1.00/1	8/8.00/8
ISSN	14,275,788	14,275,788	0/1.00/1	9/9.00/9
Volume	14,039,763	14,039,763	0/1.00/1	1/2.25/50
Issue	13,607,965	13,607,965	0/1.00/1	1/1.42/30
PubDate	14,359,553	14,359,553	1/1.00/1	4/7.34/55
Title	14,359,553	14,359,553	1/1.00/1	2/37.16/595
ISOAbbreviation	7,816,185	7,816,185	0/1.00/1	3/16.56/61
ArticleTitle	14,359,553	14,359,553	1/1.00/1	2/84.76/1086
MedlinePgn	14,359,553	14,359,553	1/1.00/1	1/5.64/69
Abstract
AbstractText	8,293,362	8,293,362	0/1.00/1	50/1169.60/9992
CopyrightInformation	204,488	204,488	0/1.00/1	4/35.88/1000
Affiliation	7,237,675	7,237,675	0/1.00/1	1/94.29/274
Author	14,056,285	46,819,032	0/3.33/744	1/11.26/375
Author Valid Yes		46,814,327
Author Valid No		4,705
LastName	14,039,729	46,766,308	0/3.33/743	1/6.92/163
ForeName	14,033,353	46,733,994	0/3.33/743	1/2.86/56
Initials	14,033,352	46,733,986	0/3.33/743	1/1.44/8
Suffix	280,328	296,581	0/1.06/5	2/2.19/3
CollectiveName	48,969	52,724	0/1.08/25	1/42.64/375
LastForeSuffix	14,039,729	46,766,308	0/3.33/743	1/9.79/163
LastInitialsSuffix	14,039,729	46,766,308	0/3.33/743	1/8.37/163
Language	14,359,553	14,379,469	1/1.00/4	3/3.00/3
Grant	1,240,934	2,167,646	0/1.75/62	4/15.28/49
GrantID	1,236,464	2,162,645	0/1.75/62	1/8.95/44
Acronym	1,204,805	2,101,000	0/1.74/62	2/2.00/2
Agency	1,240,934	2,167,646	0/1.75/62	2/4.42/14
DataBank	157,709	160,091	0/1.02/4	6/60.80/47047
DataBankName	157,709	160,091	0/1.02/4	3/6.67/18
AccessionNumber	157,709	1,180,338	0/7.48/5880	2/7.34/14
PublicationType	14,359,553	26,571,420	1/1.85/10	4/17.85/40
ArticleDate	399,997	399,997	0/1.00/1	8/8.00/8
VernacularTitle	2,462,084	2,462,084	0/1.00/1	1/81.07/614
Country	14,359,553	14,359,553	1/1.00/1	4/9.89/35
MedlineTA	14,359,553	14,359,553	1/1.00/1	1/15.35/96
NlmUniqueID	14,359,553	14,359,553	1/1.00/1	7/7.16/9
Chemical	7,789,682	29,700,524	0/3.81/57	4/20.58/250
RegistryNumber	7,789,682	29,700,524	0/3.81/57	1/4.52/14
NameOfSubstance	7,789,682	29,700,524	0/3.81/57	2/16.06/249
CitationSubset	14,184,346	16,684,044	0/1.18/6	1/1.98/3
GeneSymbol	59,509	126,195	0/2.12/25	1/4.51/41
CommentsCorrections	649,522	786,300	0/1.21/40	9/45.63/835
RetractionOf	681	780	0/1.15/8	32/94.13/344
RetractionIn	756	766	0/1.01/2	27/71.36/341
SummaryForPatientsIn	493	506	0/1.03/3	29/45.37/55
OriginalReportIn	490	506	0/1.03/3	32/47.95/68
CommentOn	316,253	351,741	0/1.11/27	19/45.27/98
Element Name	Citations	Occurrences	Min/Avg/Max Occurrences	Min/Avg/Max Length
CommentIn	282,807	355,451	0/1.26/40	25/47.10/118
ErratumIn	68,296	69,288	0/1.01/3	9/39.00/835
ErratumFor	982	990	0/1.01/3	30/45.63/104
ReprintIn	210	213	0/1.01/3	33/50.57/72
ReprintOf	180	180	0/1.00/1	33/47.80/77
RepublishedFrom	1,148	1,152	0/1.00/2	19/44.84/110
RepublishedIn	939	944	0/1.01/2	26/46.81/89
UpdateIn	1,946	1,960	0/1.01/2	37/47.86/58
UpdateOf	1,823	1,823	0/1.00/1	36/48.01/56
PartialRetractionOf	0	0	0/0.00/0	0/0.00/0
PartialRetractionIn	0	0	0/0.00/0	0/0.00/0
MeshHeading	14,181,317	148,248,597	0/10.45/68	2/19.73/154
DescriptorName	14,181,317	148,248,597	0/10.45/68	2/13.71/104
Descriptor Major	6,961,843	12,060,291	0/1.73/37
Descriptor Not Major	14,138,137	136,188,306	0/9.63/61
QualifierName	13,144,345	79,297,764	0/6.03/64	5/11.26/29
Qualifier Major	12,491,421	33,986,121	0/2.72/28
Qualifier Not Major	10,623,591	45,311,643	0/4.27/63
Descriptor and/or Qualifier Major	14,052,416	44,772,823	0/3.19/37
NumberOfReferences	1,215,834	1,215,834	0/1.00/1	1/2.09/4
PersonalNameSubject	115,007	131,339	0/1.14/28	3/11.47/74
LastName	115,007	131,339	0/1.14/28	2/7.48/69
ForeName	111,388	126,695	0/1.14/28	1/2.70/41
Initials	111,386	126,692	0/1.14/28	1/1.43/6
Suffix	912	937	0/1.03/3	2/2.10/3
LastForeSuffix	115,007	131,339	0/1.14/28	3/10.09/72
LastInitialsSuffix	115,007	131,339	0/1.14/28	3/8.87/71
OtherID	218,071	310,394	0/1.42/5	1/6.92/16
OtherAbstract
AbstractText	61,933	61,973	0/1.00/2	60/1284.24/4096
CopyrightInformation	1,856	1,856	0/1.00/1	11/16.80/17
Keyword	154,512	1,586,535	0/10.27/98	2/17.02/123
Keyword Major	80,819	524,017	0/6.48/50
Keyword Not Major	153,309	1,062,518	0/6.93/88
GeneralNote	141,618	273,412	0/1.93/32	2/34.46/704
SpaceFlightMission	4,144	19,202	0/4.63/12	6/13.88/28
Investigator	8,953	10,308	0/1.15/6	7/31.05/96
LastName	8,953	10,308	0/1.15/6	2/6.70/16
ForeName	8,945	10,297	0/1.15/6	1/2.70/9
Initials	8,945	10,297	0/1.15/6	1/1.84/2
Suffix	16	16	0/1.00/1	2/2.19/3
Affiliation	8,952	10,307	0/1.15/6	3/19.81/83
LastForeSuffix	8,953	10,308	0/1.15/6	3/9.40/19
LastInitialsSuffix	8,953	10,308	0/1.15/6	3/8.54/18

Average Record Size in Bytes

1,292

Words in Title	Average	11.69	Max	249
Words in Abstract	Average	178.27	Max	1,666

AB Size Zero	6,066,191
AB Size < 1,000	3,360,498
AB Size 1,000 - 1,999	4,448,872
AB Size 2,000 - 2,999	459,727
AB Size 3,000 - 3,999	21,440
AB Size 4,000 - 4,999	2,146
AB Size > 5,000	679

Number of MH Occurrences with NO SHs	89,506,412
Number of MH Occurrences with ONE SH	42,701,339
Number of MH Occurrences with SHs	58,742,185

CollectiveName Counts

Number of Citations containing ONLY CollectiveName			16,556
Number of Citations containing BOTH CollectiveName AND LastName			32,413

MedlineCitation Status Counts:

Completed	0
In-Process	0
In-Data-Review	0
PubMed-not-MEDLINE	175,207
OLDMEDLINE	0
MEDLINE	14,184,346

Article PubModel Counts:

Print-Electronic	374,396
Electronic-Print	2,196
Print	13,959,556
Electronic	23,405

Owner Counts:

Owner	MedlineCitation	GeneralNote	Keyword
NLM	14,240,196	59	0
NASA	10,532	1,215	12,924
PIP	37,266	63,815	68,955
KIE	31,494	208,285	73,059
HSR	4,264	38	0
HMD	35,801	0	0
SIS	0	0	0
NOTNLM	0	0	0

JournalIssue CitedMedium Counts:

Internet	232,621
Print	14,126,932

ISSN IssnType Counts:

Electronic	231,700
Print	14,044,088

CitationSubsets Counts:

AIM	1,618,717
B	10,441
C	7,344
D	422,158
E	82,447
F	8,017
H	217,388
IM	13,144,286
J	69,041
K	9,799
N	491,946
OM	0
Q	192,495
QIS	0
QO	24,167
R	3,603
S	177,450
T	31,991
X	172,754

Publication Types Counts:

Addresses	2,773
Bibliography	12,637
Biography	112,575
Case Reports	1,242,763
Classical Article	4,102
Clinical Conference	4,872
Clinical Trial	428,956
Clinical Trial, Phase I	7,581
Clinical Trial, Phase II	11,651
Clinical Trial, Phase III	3,397
Clinical Trial, Phase IV	308
Comment	316,253
Comparative Study	1,292,509
Congresses	45,095
Consensus Development Conference	5,161
Consensus Development Conference, NIH	546
Controlled Clinical Trial	73,316
Corrected and Republished Article	1,148
Dictionary	502
Directory	6,393
Duplicate Publication	628
Editorial	195,033
English Abstract	1,365,929
Evaluation Studies	76,291
Festschrift	988
Government Publications	180
Guideline	13,885
Historical Article	226,767
In Vitro	338,997
Interview	17,545
Journal Article	13,385,519
Publication Types Counts (continued):
Lectures	3,910
Legal Cases	7,739
Legislation	1,657
Letter	571,589
Meta-Analysis	13,768
Multicenter Study	76,978
News	106,717
Newspaper Article	14,851
Overall	21,000
Patient Education Handout	1,970
Periodical Index	306
Practice Guideline	10,299
Published Erratum	988
Randomized Controlled Trial	224,684
Research Support, N.I.H., Extramural	105,365
Research Support, N.I.H., Intramural	2,756
Research Support, Non-U.S. Gov't	3,121,578
Research Support, U.S. Gov't, Non-P.H.S.	427,972
Research Support, U.S. Gov't, P.H.S.	1,414,869
Retracted Publication	756
Retraction of Publication	681
Review	1,215,442
Scientific Integrity Review	103
Technical Report	1,337
Twin Study	2,779
Validation Studies	27,026

Last updated: 04 January 2007
First published: 04 January 2007
Metadata| Permanence level: Permanence Not Guaranteed