Scimago Journal & Country Rank

National vital statistics reports : from the Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System

Country United States  - SIR icon SIR Ranking of United States
H Index
Subject Area and CategorySocial Sciences
Life-span and Life-course Studies
PublisherUS Department of Health and Human Services
Publication typeJournals
ISSN15518922, 15518930


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The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Life-span and Life-course Studies1999Q1
Life-span and Life-course Studies2000Q1
Life-span and Life-course Studies2001Q1
Life-span and Life-course Studies2002Q1
Life-span and Life-course Studies2003Q1
Life-span and Life-course Studies2004Q1
Life-span and Life-course Studies2005Q1
Life-span and Life-course Studies2006Q1
Life-span and Life-course Studies2007Q1
Life-span and Life-course Studies2008Q1
Life-span and Life-course Studies2009Q1
Life-span and Life-course Studies2010Q1
Life-span and Life-course Studies2011Q1
Life-span and Life-course Studies2012Q1
Life-span and Life-course Studies2013Q1
Life-span and Life-course Studies2014Q1
Life-span and Life-course Studies2015Q1
Life-span and Life-course Studies2016Q1
Life-span and Life-course Studies2017Q1

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19992.700
Cites / Doc. (4 years)20005.227
Cites / Doc. (4 years)20015.250
Cites / Doc. (4 years)20026.114
Cites / Doc. (4 years)20038.645
Cites / Doc. (4 years)200412.492
Cites / Doc. (4 years)200516.333
Cites / Doc. (4 years)200622.977
Cites / Doc. (4 years)200720.333
Cites / Doc. (4 years)200822.514
Cites / Doc. (4 years)200927.067
Cites / Doc. (4 years)201025.621
Cites / Doc. (4 years)201125.214
Cites / Doc. (4 years)201215.115
Cites / Doc. (4 years)201321.903
Cites / Doc. (4 years)201424.378
Cites / Doc. (4 years)201528.789
Cites / Doc. (4 years)201627.767
Cites / Doc. (4 years)201731.977
Cites / Doc. (3 years)19992.700
Cites / Doc. (3 years)20005.227
Cites / Doc. (3 years)20015.679
Cites / Doc. (3 years)20028.149
Cites / Doc. (3 years)20039.146
Cites / Doc. (3 years)200415.209
Cites / Doc. (3 years)200519.351
Cites / Doc. (3 years)200628.897
Cites / Doc. (3 years)200722.880
Cites / Doc. (3 years)200827.125
Cites / Doc. (3 years)200930.217
Cites / Doc. (3 years)201027.500
Cites / Doc. (3 years)201128.278
Cites / Doc. (3 years)201215.400
Cites / Doc. (3 years)201324.600
Cites / Doc. (3 years)201427.226
Cites / Doc. (3 years)201531.800
Cites / Doc. (3 years)201629.000
Cites / Doc. (3 years)201735.355
Cites / Doc. (2 years)19992.700
Cites / Doc. (2 years)20005.811
Cites / Doc. (2 years)20017.833
Cites / Doc. (2 years)20027.152
Cites / Doc. (2 years)200310.906
Cites / Doc. (2 years)200416.769
Cites / Doc. (2 years)200520.500
Cites / Doc. (2 years)200628.222
Cites / Doc. (2 years)200729.929
Cites / Doc. (2 years)200828.529
Cites / Doc. (2 years)200930.188
Cites / Doc. (2 years)201028.250
Cites / Doc. (2 years)201128.417
Cites / Doc. (2 years)201214.500
Cites / Doc. (2 years)201328.000
Cites / Doc. (2 years)201430.174
Cites / Doc. (2 years)201528.737
Cites / Doc. (2 years)201629.650
Cites / Doc. (2 years)201740.750
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites19990
Self Cites20000
Self Cites20010
Self Cites20020
Self Cites20030
Self Cites20040
Self Cites20050
Self Cites20060
Self Cites20070
Self Cites20080
Self Cites20090
Self Cites20100
Self Cites20110
Self Cites20127
Self Cites20135
Self Cites20140
Self Cites201517
Self Cites20163
Self Cites20179
Total Cites199981
Total Cites2000230
Total Cites2001301
Total Cites2002383
Total Cites2003439
Total Cites2004654
Total Cites2005716
Total Cites2006838
Total Cites2007572
Total Cites2008651
Total Cites2009695
Total Cites2010605
Total Cites2011509
Total Cites2012308
Total Cites2013615
Total Cites2014844
Total Cites2015954
Total Cites2016928
Total Cites20171096
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document19992.700
External Cites per document20005.227
External Cites per document20015.679
External Cites per document20028.149
External Cites per document20039.146
External Cites per document200415.209
External Cites per document200519.351
External Cites per document200628.897
External Cites per document200722.880
External Cites per document200827.125
External Cites per document200930.217
External Cites per document201027.500
External Cites per document201128.278
External Cites per document201215.050
External Cites per document201324.400
External Cites per document201427.226
External Cites per document201531.233
External Cites per document201628.906
External Cites per document201735.065
Cites per document19992.700
Cites per document20005.227
Cites per document20015.679
Cites per document20028.149
Cites per document20039.146
Cites per document200415.209
Cites per document200519.351
Cites per document200628.897
Cites per document200722.880
Cites per document200827.125
Cites per document200930.217
Cites per document201027.500
Cites per document201128.278
Cites per document201215.400
Cites per document201324.600
Cites per document201427.226
Cites per document201531.800
Cites per document201629.000
Cites per document201735.355
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20040
Non-citable documents20050
Non-citable documents20060
Non-citable documents20070
Non-citable documents20080
Non-citable documents20090
Non-citable documents20100
Non-citable documents20110
Non-citable documents20120
Non-citable documents20130
Non-citable documents20140
Non-citable documents20150
Non-citable documents20160
Non-citable documents20170
Citable documents199930
Citable documents200044
Citable documents200153
Citable documents200247
Citable documents200348
Citable documents200443
Citable documents200537
Citable documents200629
Citable documents200725
Citable documents200824
Citable documents200923
Citable documents201022
Citable documents201118
Citable documents201220
Citable documents201325
Citable documents201431
Citable documents201530
Citable documents201632
Citable documents201731
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents199917
Uncited documents200019
Uncited documents200125
Uncited documents200215
Uncited documents200318
Uncited documents20048
Uncited documents20056
Uncited documents20062
Uncited documents20070
Uncited documents20080
Uncited documents20091
Uncited documents20101
Uncited documents20111
Uncited documents20120
Uncited documents20130
Uncited documents20142
Uncited documents20151
Uncited documents20160
Uncited documents20170
Cited documents199913
Cited documents200025
Cited documents200128
Cited documents200232
Cited documents200330
Cited documents200435
Cited documents200531
Cited documents200627
Cited documents200725
Cited documents200824
Cited documents200922
Cited documents201021
Cited documents201117
Cited documents201220
Cited documents201325
Cited documents201429
Cited documents201529
Cited documents201632
Cited documents201731
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