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

CountryUnited States
H Index
Subject Area and CategorySocial Sciences
Life-span and Life-course Studies
PublisherUS Department of Health and Human Services
Publication typeJournals
ISSN15518930, 15518922

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

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)19992.333
Cites / Doc. (4 years)20004.591
Cites / Doc. (4 years)20014.633
Cites / Doc. (4 years)20025.486
Cites / Doc. (4 years)20037.651
Cites / Doc. (4 years)200411.217
Cites / Doc. (4 years)200514.182
Cites / Doc. (4 years)200619.889
Cites / Doc. (4 years)200717.861
Cites / Doc. (4 years)200820.400
Cites / Doc. (4 years)200924.667
Cites / Doc. (4 years)201023.103
Cites / Doc. (4 years)201122.107
Cites / Doc. (4 years)201210.692
Cites / Doc. (4 years)201315.226
Cites / Doc. (4 years)201415.523
Cites / Doc. (4 years)201517.156
Cites / Doc. (3 years)19992.333
Cites / Doc. (3 years)20004.591
Cites / Doc. (3 years)20015.019
Cites / Doc. (3 years)20027.340
Cites / Doc. (3 years)20038.082
Cites / Doc. (3 years)200413.636
Cites / Doc. (3 years)200516.526
Cites / Doc. (3 years)200625.897
Cites / Doc. (3 years)200719.920
Cites / Doc. (3 years)200824.708
Cites / Doc. (3 years)200927.652
Cites / Doc. (3 years)201025.000
Cites / Doc. (3 years)201124.833
Cites / Doc. (3 years)201210.650
Cites / Doc. (3 years)201316.840
Cites / Doc. (3 years)201417.000
Cites / Doc. (3 years)201519.324
Cites / Doc. (2 years)19992.333
Cites / Doc. (2 years)20005.081
Cites / Doc. (2 years)20017.000
Cites / Doc. (2 years)20026.485
Cites / Doc. (2 years)20039.576
Cites / Doc. (2 years)200414.630
Cites / Doc. (2 years)200518.273
Cites / Doc. (2 years)200625.000
Cites / Doc. (2 years)200726.714
Cites / Doc. (2 years)200825.412
Cites / Doc. (2 years)200927.938
Cites / Doc. (2 years)201025.500
Cites / Doc. (2 years)201125.250
Cites / Doc. (2 years)201210.357
Cites / Doc. (2 years)201318.947
Cites / Doc. (2 years)201418.933
Cites / Doc. (2 years)201515.923
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 Cites20124
Self Cites20134
Self Cites20140
Self Cites201514
Total Cites199970
Total Cites2000202
Total Cites2001266
Total Cites2002345
Total Cites2003396
Total Cites2004600
Total Cites2005628
Total Cites2006751
Total Cites2007498
Total Cites2008593
Total Cites2009636
Total Cites2010550
Total Cites2011447
Total Cites2012213
Total Cites2013421
Total Cites2014646
Total Cites2015715
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 document19992.333
External Cites per document20004.591
External Cites per document20015.019
External Cites per document20027.340
External Cites per document20038.082
External Cites per document200413.636
External Cites per document200516.526
External Cites per document200625.897
External Cites per document200719.920
External Cites per document200824.708
External Cites per document200927.652
External Cites per document201025.000
External Cites per document201124.833
External Cites per document201210.450
External Cites per document201316.680
External Cites per document201417.000
External Cites per document201518.946
Cites per document19992.333
Cites per document20004.591
Cites per document20015.019
Cites per document20027.340
Cites per document20038.082
Cites per document200413.636
Cites per document200516.526
Cites per document200625.897
Cites per document200719.920
Cites per document200824.708
Cites per document200927.652
Cites per document201025.000
Cites per document201124.833
Cites per document201210.650
Cites per document201316.840
Cites per document201417.000
Cites per document201519.324
% 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
Citable documents199930
Citable documents200044
Citable documents200153
Citable documents200247
Citable documents200349
Citable documents200444
Citable documents200538
Citable documents200629
Citable documents200725
Citable documents200824
Citable documents200923
Citable documents201022
Citable documents201118
Citable documents201220
Citable documents201325
Citable documents201438
Citable documents201537
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 documents199918
Uncited documents200019
Uncited documents200126
Uncited documents200217
Uncited documents200318
Uncited documents20048
Uncited documents20056
Uncited documents20062
Uncited documents20071
Uncited documents20080
Uncited documents20091
Uncited documents20101
Uncited documents20112
Uncited documents20121
Uncited documents20132
Uncited documents201410
Uncited documents20154
Cited documents199912
Cited documents200025
Cited documents200127
Cited documents200230
Cited documents200331
Cited documents200436
Cited documents200532
Cited documents200627
Cited documents200724
Cited documents200824
Cited documents200922
Cited documents201021
Cited documents201116
Cited documents201219
Cited documents201323
Cited documents201428
Cited documents201533
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