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Embase® is a registered trademark of Elsevier BV.
Presented by Ian Crowlesmith
23 April [email protected]
Your host:Ann-Marie Roche CONTENT AND COVERAGE
ON EMBASE
2
• Webinar control panel: ‘chat’ for questions or ‘ask a question’ minimize option for full screen view
• Q&A after 30 minutes
NEED TO KNOW
3
CONTENT AND COVERAGEON EMBASE: AGENDA
Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
1. Scope and journal coverage2. Country & language
coverage3. Conference coverage4. Articles in Press / In Process5. Overlap with MEDLINE6. Embase currency
4
CONTENT AND COVERAGEON EMBASE
Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
1. Scope and journal coverage
2. Country & language coverage
3. Conference coverage4. Articles in Press / In Process5. Overlap with MEDLINE6. Embase Currency
5Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
EMBASE SCOPE
NO SIGNIFICANT CHANGE SINCE 2012
Other topics 28%
Including: public health, general surgery, nursing, dentistry, veterinary science
6Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
EMBASE JOURNALS
TWO YEARS AGO : 7,960 JOURNALS COVERED (MARCH 2012)
2,368 journals
Indexed at Embase
Unique to Embase
Search:
[embase]/lim
3,028 journals
Indexed at Embase
Also covered by MEDLINE
Search:
[embase]/lim AND [medline]/lim
2,564 journals *
Indexed by MEDLINE
Also in MEDLINE
Search:
[medline]/lim NOT [embase]/lim
Indexed at Embase (5,396 titles)
Indexed by MEDLINE (e.g on PubMed) (5,592 titles)
* Converted to Embase format (see “Coverage of MEDLINE in Embase” white paper, May 2011)
7Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
EMBASE JOURNALS
THIS YEAR : 8,436 JOURNALS COVERED (MARCH 2014)
2,790 journals
Indexed at Embase
Unique to Embase
Search:
[embase]/lim
3,138 journals
Indexed at Embase
Also covered by MEDLINE
Search:
[embase]/lim AND [medline]/lim
2,508 journals *
Indexed by MEDLINE
Also in MEDLINE
Search:
[medline]/lim NOT [embase]/lim
Indexed at Embase (5,948 titles)
Indexed by MEDLINE (e.g on PubMed) (5,646 titles)
* Converted to Embase format (see “Coverage of MEDLINE in Embase” white paper, May 2011)
8Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
EMBASE JOURNALS 2014
EXTRACT FROM THIS YEAR’S LIST
Source: http://www.elsevier.com/online-tools/embase/about
9Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
JOURNAL SELECTION
KEY FACTORS .
Journal quality scored- editorial board / peer review process
- articles written in English language- publication by a major publisher
Journal topic & source- journal topic: core, medium, marginal (or out
of scope)- country of publication- article language (minimal requirement: English abstract)Journal
selection
- core topic journals of lower quality may be selected- marginal topic only higher quality journals selected- international representation from all countries
if possible
10Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
JOURNAL GROWTH
2010 - 2014
2010 2011 2012 2013 20140
500
1000
1500
2000
2500
3000
3500
Embase unique
Shared titles
MEDLINE unique
Journals covered in Embase each year
11
CONTENT AND COVERAGEON EMBASE
Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
1. Scope and journal coverage2. Country & language
coverage3. Conference coverage4. Articles in Press / In Process5. Overlap with MEDLINE6. Embase currency
12Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
EMBASE JOURNALS BY COUNTRY
8,436 JOURNAL TITLES (MARCH 2014)
49.7%
33.4%
9.5% 7.4%
North America
EuropeAsia
RoW *
* RoW = Rest of the World (esp. Australia & New Zealand, Africa, South America)
13Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
MEDLINE JOURNALS (ON PUBMED)
5,646 JOURNAL TITLES ** (MARCH 2014)
48.7%
40.5%
6.3% 4.4% Europe
North America
Asia RoW
**As defined within Embase (some MEDLINE titles are merged in Embase)
14Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
JOURNALS UNIQUE TO EMBASE
2,790 JOURNAL TITLES NOT IN MEDLINE
51.6%
18.9%
16.0%13.5%
North America
Europe
Asia
RoW
81% of Embase-unique titles are from outside North America
15Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
ASIAN JOURNALS IN EMBASE (2014)
Country Embase (total) MEDLINE Unique in Embase India 234 48 186 Japan 221 154 67 China 149 88 61 South Korea 62 21 41 Pakistan 34 5 29 Singapore 30 10 20 Taiwan 18 8 10 Hong Kong 14 3 11 Bangladesh 11 3 8 Malaysia 10 4 6 Nepal 7 5 2 Thailand 6 4 2 Indonesia 2 1 1 Sri Lanka 2 1 1 Philippines 2 1 1
16Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
ARTICLE LANGUAGE (LAST 5 YEARS)Language Embase (per year) * MEDLINE (per year) * Unique in Embase
English ** 877,186 (90%) 664,207 (92%) 213,000
Chinese 27,861 (2.9%) 11,523 (2.2%) 16,300
German 17,051 (1.7%) 7,421 (1.0%) 9,600
French 13,491 8,469 5,000
Spanish 12,582 6,839 5,700
Japanese 7,762 5,761 2,000
Russian 6,275 6,094 200
Portuguese 4,918 3,560 1,400
Polish 3,479 1,791 1,700
Turkish 3,264 545 2,700
Italian 2,880 1,522 1,400
Dutch 2,618 899 1,700
Czech 1,557 (0.16%) 585 (0.08%) 1,000
* Average: April 2009 – April 2014 ** excl. conference abstracts
17Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
ENGLISH VS NON-ENGLISH ARTICLES
2009 2010 2011 2012 20130.0
200,000.0
400,000.0
600,000.0
800,000.0
1,000,000.0
English (total)English (MEDLINE)Non-English (total)Non-English (MEDLINE)
Articles published per year in Embase 5-YEAR TREND
18
CONTENT AND COVERAGEON EMBASE
Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
1. Scope and journal coverage2. Country & language
coverage3. Conference coverage4. Articles in Press / In Process5. Overlap with MEDLINE6. Embase currency
19Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
CONFERENCES IN EMBASE
1,000 CONFERENCES/YEAR COVERED FROM 2009
20Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
CONFERENCE ABSTRACTS
CURRENTLY 300,000 ABSTRACTS/YEAR
21Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
CONFERENCE INDEXING
RESULTS CAN BE FILTERED BY “MEDICAL DEVICE”
22Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
CONFERENCES ABOUT DEVICES
SEE THE “CONFERENCE” FILTER . . .
23Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
CONFERENCES AB0UT DEVICES (2)
. . . SHOWING CONFERENCES RANKED BY THE NUMBER OF
ABSTRACTS
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CONTENT AND COVERAGEON EMBASE
Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
1. Scope and journal coverage2. Country & language
coverage3. Conference coverage4. Articles in Press / In
Process5. Overlap with MEDLINE6. Embase currency
EMBASE WORKFLOW
Articles in Press (AiPs) *
In process records (IPs) *
Fully indexed records
Conference abstracts *
single step
<1 week
<1 week
260K recordsDeduplication+ conversion
Articles (pre-pub)
Journal issue (published)
Journal (supps) (published)
MEDLINE articles
1m records
<1 week
300K records
update update
5,948 journals2,100 journals
800K records* includes Automatic Indexing (AI)
26Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
ARTICLES-IN-PRESS & IN-PROCESS RECORDS
SEARCHING USING QUICK LIMITS
27Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
ARTICLES IN PRESS
RECORD DISPLAY
EMBASE WORKFLOW
Articles in Press (AiPs)
In process records (IPs)
Fully indexed records
Conference abstracts
single step
<1 week
260K recordsDeduplication+ conversion
Articles (pre-pub)
Journal issue (published)
Journal (supps) (published)
MEDLINE articles
1m records
<1 week
300K records
update update
5,948 journals2,100 journals
800K records
<1 week
29Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
OVERLAP OF EMBASE WITH MEDLINE
TOTAL RECORDS
OVERLAPPING (DEDUPLICATED) RECORDS
“Embase” not MEDLINE: 6,073,183
MEDLINE not “Embase”: 9,091,369
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CONTENT AND COVERAGEON EMBASE
Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
1. Scope and journal coverage2. Country & language
coverage3. Conference coverage4. Articles in Press / In Process5. Overlap with MEDLINE6. Embase currency
EMBASE WORKFLOW
Articles in Press (AiPs)
In process records (IPs)
Fully indexed records
Conference abstracts
single step
<1 week
260K recordsDeduplication+ conversion
Articles (pre-pub)
Journal issue (published)
Journal (supps) (published)
MEDLINE articles
1m records
<1 week
300K records
update update
5,948 journals2,100 journals
800K records
<1 week
32Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
EMBASE CURRENCY VS MEDLINE
FULLY INDEXED RECORDS (DATA FROM 10 (BI)WEEKLY JOURNALS *)
2009
2010
2011
2012
2013
2014
-4.0
-2.0
0.0
2.0
4.0
6.0
8.0 Weeks ahead (Embase on Embase.com vs MEDLINE on PubMed)
* JAMA, New England Journal of Medicine, The Lancet, Nature, Science, PNAS, Circulation, J. Neuroscience, J. Biological Chemistry, Ann. Internal Medicine
33Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
RECORDS LICENSED FROM NLM
(MEDLINE NOT “EMBASE” RECORDS)
34Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
MEDLINE VS EMBASE CURRENCY
AVERAGE PROCESSING TIME = 4-5 DAYS
35Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
CONTENT AND COVERAGE ON EMBASE
WHAT HAVEN’T WE COVERED ?
Emtree thesaurus (especially recent enhancements)Embase indexing (including automatic indexing) /
comparison with indexing on MEDLINESpecific topics such as Pharmacovigilance, Medical
Devices & Systematic ReviewsHow to optimize searching using all the above
features & topics in Embase
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CONTENT AND COVERAGE ON EMBASE
SUMMARY OF WHAT WE HAVE COVERED
Embase currency
• Fully indexed records are loaded within 2 weeks on average
• Currency of fully indexed records from top journals is consistently better than on MEDLINE
• Records licensed from NLM are available in Embase within a week
Workflow & record types
• Conference coverage (since 2009), including using search filters to find relevant conference abstracts
• Articles in Press & In-process records (with automatic indexing)
• Deduplication between Embase & MEDLINE records
Scope & journal coverage
• Comprehensive scope with focus on drugs, clinical medicine and medical devices
• Journal policy, including annual growth & comparison vs MEDLINE
• Country & language of publication (incl. differences with MEDLINE)
Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
THANK YOU ANY
QUESTIONS?
37Ian Crowlesmith | 23 April 2014 | Content and Coverage on Embase
Ian Crowlesmith
Senior Product Manager, Content Development
38Ian Crowlesmith | 25 September 2013 | Searching for Adverse Events on Embase
Please fill in the survey which will pop up at the end of the webinar.
For more information and questions please use the contact details on our online page, where you may also find all training and support materials and our full webinar schedule.
Our next Embase webinar is on May 28 and this will be an introduction to Embase for new users.
AND FOR MORE INFORMATION …