Embase for biomedical searching: Content and

coverage

Your host: Chris Flemming Your presenter: Ian Crowlesmith

Welcome to our Embase webinar!

Registering in Embase

2

Embase content & coverage

Embase 1947 - 2012

Multiple perspectives highlight different aspects of Embase

Scope now extends over many niches in biomedicine

• Scope and coverage• Embase focus areas• Journal content 2012• Journals by country & language• Journal selection policy

Agenda

Excerpta Medica Abstract Journals (1947/8)- 15 abstract journal titles, growing to more than

40- abstract journals (not citation indexes)- controlled indexing (later branded as “Emtree”)

Evolution of Embase (1947-2012)

EMBASE database online (1974)- first commercial offering via Lockheed Dialog- now available on multiple online platforms

EMBASE becomes Embase (2009)- additional MEDLINE content licensed from NLM- online availability extended back to 1947- original abstracts (1947-1974) become available

as Embase Classic

Embase scope and coverage (2012)

Other topics 28%

Including public health, basic biomedical science and topics included from MEDLINE

Embase vs MEDLINE scope

Similar overall pattern of coverage... but with two major differences

1. Pharmacology & toxicologyEmbase: 11.2% (889 titles)MEDLINE: 8.3% (465 titles)

2. General clinical medicineEmbase: 10.5% (835 titles)MEDLINE: 8.9% (495 titles)

Salud(i)Ciencia ArgentinaSalus VenezuelaSapporo Medical journal JapanScientia Medica BrazilScientific Journal of Kurdistan University of Medical Sciences Iran

Clinical Medicine Insights: Therapeutics New ZealandAfrican Journal of Pharmacy and Pharmacology NigeriaAnales de la Real Academia Nacional de Farmacia SpainAnkara Universitesi Eczacilik Fakultesi Dergisi TurkeyArhiv za Farmaciju Serbia

Embase vs MEDLINESearching the difference

Peer-reviewed literature in biomedical science

Embase focus areas

- Drug therapy and research, including pharmacology, toxicology, pharmaceutics and pharmacoeconomics

- Public health, including occupational and environmental health

- Basic and applied biological science relevant to human medicine, e.g. physiology, biotechnology and forensic science

- Health policy and management

- Biomedical engineering + medical devices

- Clinical and experimental (human) medicine,including psychiatry and mental health

Embase traditionally includes much literature in health-related topics such as:- Complementary and alternative medicine 89 journal titles in

Embasee.g. Osteopathische Medizin (Urban und Fischer)

- Substance dependence and abuse traditional topics initiated

- Pollution control relevant to human medicine as EM abstract journals

Embase content - additional topics

In addition, with the expansion to include all of MEDLINE, Embase now has extensive coverage of:- Nursing 270 titles- Dentistry 183 titles- Veterinary science 123 titles

Embase (active) journals in 2012

Indexed at Embase (5396 titles)

Indexed by MEDLINE (e.g on PubMed) (5592 titles)

2368 journals

Indexed at Embase

Unique to Embase

Search:

[embase]/lim

3028 journals

Indexed at Embase

Also covered by MEDLINE

Search:

[embase]/lim AND [medline]/lim

2564 journals*

Indexed by MEDLINE

Also in MEDLINE

Search:

[medline]/lim NOT [embase]/lim

Embase: now covers 7960 journals (20 March 2012)

* Converted to Embase format as described in the “Coverage of MEDLINE in Embase” white paper (May 2011)

Embase journals by country(all 7,960 titles in 2012)

49.7%

33.8%

9.3%7.2%

EuropeAsia

North America

RoW *

* RoW = Rest of the World (esp. Australia & New Zealand, Africa, South America)

MEDLINE journals (on PubMed)(5,592 titles* in 2012)

Europe

Asia

North America

RoW

48.5%

40.5%

6.4%4.6%

* As defined within Embase, with some titles merged

Embase unique journals(2,368 titles not in MEDLINE)

Europe

Asia

North America

RoW

52.7%

17.9%

16.2%

13.2%

82% of Embase-unique titles are from outside N. America

Asian journal coverage in Embase

Country Embase MEDLINE Embase uniqueJapan 223 159 64India 197 45 152China 143 89 54South Korea 50 20 30Pakistan 35 5 30Singapore 31 12 19Taiwan 17 7 10Bangladesh 11 3 8Hong Kong 10 3 7Malaysia 9 4 5Nepal 6 5 1Thailand 5 4 1Indonesia 2 1 1Sri Lanka 2 1 1Philippines 1 1

Article language

Language Embase (2010) * MEDLINE (2010) ***English 824,587 (89%) ** 661,667 (92%)Non-English 11% 8%

* [embase]/lim OR [medline]/lim AND [2010]/py AND english:la ** also excluding conference abstracts*** [medline]/lim AND [2010]/py AND english:la

German 17,320 7,004

French 13,552 8,827

Spanish 12,519 7,311

Portuguese 5,303 4,004

Italian 3,146 1,672

Turkish 3,646 675

Chinese 23,757 11,523

Japanese 7,820 5,655

Active Embase journal titles (20 March 2012)

Print ISSN

e-ISSN Publisher CountryIndexed at

EmbasePriority journal

Articles in Press

Indexed by Medline

Journal of interpersonal violence

08862605 15526518Sage Publications

United States

      Yes

Journal of interprofessional care

13561820 14699567Informa Healthcare

United Kingdom

      Yes

Journal of Interventional Cardiac Electrophysiology

1383875X 15728595Springer Netherlands

Netherlands Yes Yes Yes Yes

Journal of Interventional Cardiology

08964327 15408183Blackwell Publishing Inc

United States

Yes Yes Yes Yes

Journal of Interventional Gastroenterology

21541280 21541299Landes Bioscience

United States

Yes      

Journal of Interventional Oncology

19160518 19160518Decker Publishing

Canada Yes      

Embase List of Journals *

* Full list available from: http://www.embase.com/info/what-is-embase/coverage

Journal selection policy

- journal quality indicator, not an indicator of processing speed

- searchable as a Quick Limit (see Advanced Search)- Embase currently has 2233 priority journals

Judged primarily by 3 factors:- editorial board / peer review process- articles written in English language- publication by one of ca. 100 major

publishers

Journal quality

Q1-Q3: journal samples are reviewed & scored for quality Q4: selection is based on quality, topic, country/languageQ1 : selected new journal content is added to Embase

Journal selection process

Priority journals

Embase journal growth (2009-2012)

2009 2010 2011 20120

2000

4000

6000

8000

Embase uniqueShared titlesDelivered by MEDLINE

+189

+30

+55

Journals

Poll

The following slides were used to answer 3 poll topics:oRecords in Embase compared to MEDLINEoHow to search for AiP, In Process and conference abstractsoEmbase workflow and currency

The audience voted to show indicatetheir preferences.

Records in Embase

All-in TOTAL in Embase 25,153,489 records *

Of which: Indexed at Embase 15,771,895

records Delivered by MEDLINE 9,381,594

records(MeSH terms mapped to Emtree)

Other data: MEDLINE on PubMed 19,673,026

records Embase-unique on Embase 5,585,597

records Embase Classic (1947-1974) ** 1,820,335

records

* Results on 13 May 2012; excludes Articles in Press / In-process** Available with Embase as part of Embase.com

01 02 03 04 05 06 07 08 09 10 11

Embase records

1.0 m

800 K

600 K

400 K

200 K

01 02 03 04 05 06 07 08 09 10 11

Embase

Medline

records

on PubMed1.0 m

800 K

600 K

400 K

200 K

01 02 03 04 05 06 07 08 09 10 11

Conference abstracts

Journal articles1.0 m

800 K

600 K

400 K

200 K

Additional Embase content

All-in TOTAL in Embase 25,153,489 records *

Of which: Conferences (2009 - present) 2,420

conferences Conference abstracts (2009 - present) 718,694 abstracts

Pre-indexed data: Articles in Press 105,073 records In Process records 13,315 records

* Results on 13 May 2012; excludes Articles in Press / In-process

Embase List of Conferences *

* Full list available on: http://www.embase.com/info/what-is-embase/conference-coverage

Year SourceConference Name (Embase entry date up to 31 March 2012)

Conference Location

Conference Date

Abst Entry Date

2012Neuropathology and Applied Neurobiology (2012) 38 SUPPL. 1

113th Meeting of the British Neuropathological Society

London, United Kingdom

2012-01-11 to 2012-01-13

78 07-Feb-12

2012Neurourology and Urodynamics (2012) 31:2

2012 Annual Winter Meeting of the Society for Urodynamics and Female Urology

New Orleans, LA, United States

2012-02-28 to 2012-03-03

182 12-Mar-12

2012 Pain Practice (2012) 12 SUPPL. 16th World Congress - World Institute of Pain

Miami Beach, FL, United States

2012-02-04 to 2012-02-06

740 03-Feb-12

2012Parkinsonism and Related Disorders (2012) 18 SUPPL. 2

WFN 19th World Congress on Parkinson's Disease and Related Disorders

Shanghai, China2011-12-11 to 2011-12-14

908 04-Jan-12

2012Pediatrics International (2012) 54 SUPPL. 1

10th International Kawasaki Disease Symposium - "From Genetics to Clinics"

Kyoto, Japan2012-02-07 to 2012-02-10

289 29-Feb-12

2012Peritoneal Dialysis International (2012) 32 SUPPL. 1

32nd Annual Dialysis ConferenceSan Antonio, TX, United States

2012-02-26 to 2012-02-28

96 29-Mar-12

2012Psycho-Oncology (2012) 21 SUPPL. 1

9th Annual Conference of the American Psychosocial Oncology Society, APOS

Miami, FL, United States

2012-02-23 to 2012-02-25

232 21-Feb-12

2012Reproduction, Fertility and Development (2012) 24:1

Annual Conference of the International Embryo Transfer Society, IETS 2012

Phoenix, AZ, United States

2012-01-07 to 2012-01-10

240 28-Dec-11

2012Reproduction, Fertility and Development (2012) 24:1

DABE Symposium 2012Phoenix, AZ, United States

2012-01-07 to 2012-01-07

12 28-Dec-11

2012Rheumatology (2012) 51 SUPPL. 1

Excellence in Rheumatology 2012 Madrid, Spain2012-01-25 to 2012-01-28

146 21-Feb-12

Embase workflow

Articles in Press (AiPs)

In process records (IPs)

Fully indexed records

Conference abstracts

single step

<1 week

<1 week

(300K records)

260K records 420K records

(160K records)

Deduplication+ conversion(>700K records)

<2 weeks

Articles (pre-pub)

Journal issue (published)

Journal (supp.) (published)

MEDLINE articles

1m records

<1 week

250K records

update update

Embase records

Embase currency (2009-2012)

Mar

Jun

Sep

Dec

Mar

Jun

Sep

Dec

Mar

Jun

Sep

Dec

Mar

4.0

3.0

2.0

1.0

0.0

1.0

2.0

3.0

4.0

5.0Weeks ahead (Embase vs MEDLINE on PubMed)

2009 2010 2011

Data for 6 journals tracked

from 2009 – present *

* BMJ, JAMA, New England Journal of Medicine, The Lancet, Nature, Science

Questions & Answers

• A Q&A will be sent by email.• For more information and questions please contact

bdtraining@elsevier.com• Our next Embase webinar is scheduled for June 20th

and will be an introduction webinar.• Go to www.trainingdesk.elsevier.com/embase for all

training related materials and webinar recordings.

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