Class information for:
Level 1: INTERPREGNANCY INTERVAL//BIRTH SPACING//PREGNANCY SPACING

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
21420 419 27.3 58%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
17 4 REPRODUCTIVE BIOLOGY//OBSTETRICS & GYNECOLOGY//VETERINARY SCIENCES 563730
186 3       OBSTETRICS & GYNECOLOGY//PREGNANCY//POSTPARTUM DEPRESSION 55886
940 2             PRENATAL CARE//STILLBIRTH//OBSTETRICS & GYNECOLOGY 10958
21420 1                   INTERPREGNANCY INTERVAL//BIRTH SPACING//PREGNANCY SPACING 419

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 INTERPREGNANCY INTERVAL authKW 2527302 12% 68% 51
2 BIRTH SPACING authKW 248417 4% 23% 15
3 PREGNANCY SPACING authKW 227733 1% 63% 5
4 BIRTH INTERVAL authKW 202759 4% 17% 16
5 SOMATIC CLASSIFICATION authKW 163969 1% 75% 3
6 ABT NEONATOL PADIATR INTENSIVMED address 145752 0% 100% 2
7 LENGTH RELATED BIRTHWEIGHT authKW 145752 0% 100% 2
8 MIFEPRISTONE INDUCED ABORTION authKW 145752 0% 100% 2
9 ABT NEONATOL PADIAT INTENS MED address 129553 1% 44% 4
10 PAST OBSTETRIC HISTORY authKW 93694 1% 43% 3

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Obstetrics & Gynecology 15758 58% 0% 244
2 Demography 2036 6% 0% 24
3 Public, Environmental & Occupational Health 925 20% 0% 84
4 Pediatrics 628 14% 0% 59
5 Reproductive Biology 266 5% 0% 22
6 Family Studies 177 3% 0% 11
7 Social Sciences, Biomedical 118 2% 0% 10
8 Medicine, General & Internal 89 8% 0% 35
9 Anthropology 50 2% 0% 8
10 Tropical Medicine 28 1% 0% 6

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ABT NEONATOL PADIATR INTENSIVMED 145752 0% 100% 2
2 ABT NEONATOL PADIAT INTENS MED 129553 1% 44% 4
3 REPROD EPIDEMIOL SOCIAL SCI 79205 1% 22% 5
4 ABT PERINATALMED FRAUENKLIN 72876 0% 100% 1
5 AFD EPIDEMIOL BIOSTAT 72876 0% 100% 1
6 BUR WOMEN CHILDRENS HLTH 72876 0% 100% 1
7 CLIN ANGIOL ARTERIAL HYPERTENS DIABETOL 72876 0% 100% 1
8 COMP SCI DEVICE ROBOT 72876 0% 100% 1
9 CONTRACEPT DRUG DEVICE 72876 0% 100% 1
10 DEUT ZENTRUM WACHSTUM 72876 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ZENTRALBLATT FUR GYNAKOLOGIE 16319 4% 1% 16
2 PAEDIATRIC AND PERINATAL EPIDEMIOLOGY 7999 3% 1% 12
3 ZEITSCHRIFT FUR GEBURTSHILFE UND NEONATOLOGIE 6295 2% 1% 7
4 FAMILY PLANNING PERSPECTIVES 4641 2% 1% 9
5 BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY 4284 3% 0% 14
6 ZEITSCHRIFT FUR GEBURTSHILFE UND PERINATOLOGIE 3288 1% 1% 6
7 AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY 2624 6% 0% 27
8 MATERNAL AND CHILD HEALTH JOURNAL 2279 2% 0% 8
9 GEBURTSHILFE UND FRAUENHEILKUNDE 2102 3% 0% 12
10 REPRODUCTIVE HEALTH 2052 1% 1% 4

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 INTERPREGNANCY INTERVAL 2527302 12% 68% 51 Search INTERPREGNANCY+INTERVAL Search INTERPREGNANCY+INTERVAL
2 BIRTH SPACING 248417 4% 23% 15 Search BIRTH+SPACING Search BIRTH+SPACING
3 PREGNANCY SPACING 227733 1% 63% 5 Search PREGNANCY+SPACING Search PREGNANCY+SPACING
4 BIRTH INTERVAL 202759 4% 17% 16 Search BIRTH+INTERVAL Search BIRTH+INTERVAL
5 SOMATIC CLASSIFICATION 163969 1% 75% 3 Search SOMATIC+CLASSIFICATION Search SOMATIC+CLASSIFICATION
6 LENGTH RELATED BIRTHWEIGHT 145752 0% 100% 2 Search LENGTH+RELATED+BIRTHWEIGHT Search LENGTH+RELATED+BIRTHWEIGHT
7 MIFEPRISTONE INDUCED ABORTION 145752 0% 100% 2 Search MIFEPRISTONE+INDUCED+ABORTION Search MIFEPRISTONE+INDUCED+ABORTION
8 PAST OBSTETRIC HISTORY 93694 1% 43% 3 Search PAST+OBSTETRIC+HISTORY Search PAST+OBSTETRIC+HISTORY
9 ACHONDROGENESIS 1A 72876 0% 100% 1 Search ACHONDROGENESIS+1A Search ACHONDROGENESIS+1A
10 AUTISM SPECTRUM DISORDER RECURRENCE RISK 72876 0% 100% 1 Search AUTISM+SPECTRUM+DISORDER+RECURRENCE+RISK Search AUTISM+SPECTRUM+DISORDER+RECURRENCE+RISK

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 SHAH, PS , ZAO, J , (2009) INDUCED TERMINATION OF PREGNANCY AND LOW BIRTHWEIGHT AND PRETERM BIRTH: A SYSTEMATIC REVIEW AND META-ANALYSES.BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY. VOL. 116. ISSUE 11. P. 1425 -1442 35 85% 64
2 SACCONE, G , PERRIERA, L , BERGHELLA, V , (2016) PRIOR UTERINE EVACUATION OF PREGNANCY AS INDEPENDENT RISK FACTOR FOR PRETERM BIRTH: A SYSTEMATIC REVIEW AND METAANALYSIS.AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY. VOL. 214. ISSUE 5. P. 572 -591 29 62% 4
3 SHACHAR, BZ , LYELL, DJ , (2012) INTERPREGNANCY INTERVAL AND OBSTETRICAL COMPLICATIONS.OBSTETRICAL & GYNECOLOGICAL SURVEY. VOL. 67. ISSUE 9. P. 584-596 37 59% 20
4 CONDE-AGUDELO, A , ROSAS-BERMUDEZ, A , KAFURY-GOETA, AC , (2006) BIRTH SPACING AND RISK OF ADVERSE PERINATAL OUTCOMES - A META-ANALYSIS.JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION. VOL. 295. ISSUE 15. P. 1809-1823 33 58% 265
5 BIGELOW, CA , BRYANT, AS , (2015) SHORT INTERPREGNANCY INTERVALS: AN EVIDENCE-BASED GUIDE FOR CLINICIANS.OBSTETRICAL & GYNECOLOGICAL SURVEY. VOL. 70. ISSUE 7. P. 458 -464 26 72% 2
6 VANDENBROUCKE, L , LAVOUE, V , VOLTZENLOGEL, MC , LE GUELLEC, M , LASSEL, L , ISLY, H , POULAIN, P , MORCEL, K , (2013) RISK FACTORS AND PERINATAL CONSEQUENCES OF SHORT INTERPREGNANCY INTERVAL: A RETROSPECTIVE CASE-CONTROL STUDY.JOURNAL DE GYNECOLOGIE OBSTETRIQUE ET BIOLOGIE DE LA REPRODUCTION. VOL. 42. ISSUE 2. P. 166-173 19 100% 0
7 BHATTACHARYA, S , LOWIT, A , BHATTACHARYA, S , RAJA, EA , LEE, AJ , MAHMOOD, T , TEMPLETON, A , (2012) REPRODUCTIVE OUTCOMES FOLLOWING INDUCED ABORTION: A NATIONAL REGISTER-BASED COHORT STUDY IN SCOTLAND.BMJ OPEN. VOL. 2. ISSUE 4. P. - 24 67% 9
8 SHACHAR, BZ , MAYO, JA , LYELL, DJ , BAER, RJ , JELIFFE-PAWLOWSKI, LL , STEVENSON, DK , SHAW, GM , (2016) INTERPREGNANCY INTERVAL AFTER LIVE BIRTH OR PREGNANCY TERMINATION AND ESTIMATED RISK OF PRETERM BIRTH: A RETROSPECTIVE COHORT STUDY.BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY. VOL. 123. ISSUE 12. P. 2009 -2017 17 81% 0
9 EKIN, A , GEZER, C , TANER, CE , OZEREN, M , MAT, E , SOLMAZ, U , (2015) IMPACT OF INTERPREGNANCY INTERVAL ON THE SUBSEQUENT RISK OF ADVERSE PERINATAL OUTCOMES.JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH. VOL. 41. ISSUE 11. P. 1744 -1751 16 84% 1
10 EL BEHERY, MM , SIAM, S , SEKSAKA, MA , IBRAHIM, ZM , (2013) REPRODUCTIVE PERFORMANCE IN THE NEXT PREGNANCY FOR NULLIPAROUS WOMEN WITH HISTORY OF FIRST TRIMESTER SPONTANEOUS ABORTION.ARCHIVES OF GYNECOLOGY AND OBSTETRICS. VOL. 288. ISSUE 4. P. 939-944 16 84% 7

Classes with closest relation at Level 1


Rank Class id link
1 34711 GRANDMULTIPARITY//GRAND MULTIPARA//GREAT GRAND MULTIPARITY
2 9870 CHILD MORTALITY//JOURNAL OF BIOSOCIAL SCIENCE//UNDER FIVE MORTALITY
3 3956 LOW BIRTH WEIGHT//INFANT MORTALITY//PRETERM BIRTH
4 8307 MISOPROSTOL//DILATION AND EVACUATION//SECOND TRIMESTER ABORTION
5 17167 ADVANCED MATERNAL AGE//DELAYED CHILDBEARING//FERTILITY KNOWLEDGE
6 21928 HUMAN STAT GENET PROGRAM//PRETERM BIRTH//PREVENT PRETERM BIRTH
7 20417 HOME UTERINE ACTIVITY MONITORING//MAMMARY STIMULATION TEST//EXTERNAL TOCOGRAPHY
8 36399 MEDICAL AND NON MEDICAL//VARIANT FHR PATTERN//LOW BACK PAIN ASSESSMENT
9 32840 MATERNAL RECALL//RECALL VALIDITY//ABSTRACTING CHARTS
10 5943 ABORTION//FAMILY PLANNING PERSPECTIVES//INDUCED ABORTION

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