Class information for:
Level 1: VACUUM EXTRACTION//INTRAPARTUM ULTRASOUND//FORCEPS

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
12159 928 19.7 57%


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
1003 2             EPISIOTOMY//OBSTETRICS & GYNECOLOGY//LABOR INDUCTION 10389
12159 1                   VACUUM EXTRACTION//INTRAPARTUM ULTRASOUND//FORCEPS 928

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 VACUUM EXTRACTION authKW 1094544 7% 51% 65
2 INTRAPARTUM ULTRASOUND authKW 734436 3% 89% 25
3 FORCEPS authKW 657149 6% 36% 56
4 ANGLE OF PROGRESSION authKW 533025 2% 90% 18
5 INSTRUMENTAL DELIVERY authKW 531718 4% 40% 40
6 OPERATIVE VAGINAL DELIVERY authKW 511842 4% 47% 33
7 SUBGALEAL HEMATOMA authKW 484565 2% 82% 18
8 FETAL HEAD POSITION authKW 462696 2% 94% 15
9 OCCIPUT POSTERIOR authKW 435477 2% 88% 15
10 CEPHALOHEMATOMA authKW 382862 2% 73% 16

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 48715 69% 0% 637
2 Pediatrics 1955 16% 0% 153
3 Acoustics 731 6% 0% 52
4 Radiology, Nuclear Medicine & Medical Imaging 305 8% 0% 76
5 Reproductive Biology 251 4% 0% 33
6 Medicine, General & Internal 123 7% 0% 65
7 Nursing 95 2% 0% 20
8 Surgery 94 8% 0% 71
9 Clinical Neurology 88 6% 0% 54
10 Emergency Medicine 77 1% 0% 13

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 MIDWESTERN REG MATERN HOSP 65806 0% 100% 2
2 SOFTWARE ENGN TELEMEDIA SET 65806 0% 100% 2
3 COOMBE WOMEN INFANTS UNIV HOSP 53833 1% 27% 6
4 RPA WOMEN BABIES 50125 1% 19% 8
5 ST ORSOLA MALPIGHI UNIV HOSP 38375 1% 17% 7
6 DELIVERY UNIT 37012 0% 38% 3
7 ANTENATAL TESTING 32903 0% 100% 1
8 ASSISTANCE PUBL HOP PARISU 717 SANTE R 32903 0% 100% 1
9 BANNER FT INS MED 32903 0% 100% 1
10 BARABOO RURAL TRAINING TRACK PROGRAM 32903 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 ULTRASOUND IN OBSTETRICS & GYNECOLOGY 17350 5% 1% 49
2 JOURNAL DE GYNECOLOGIE OBSTETRIQUE ET BIOLOGIE DE LA REPRODUCTION 17316 3% 2% 27
3 OBSTETRICS AND GYNECOLOGY 12359 8% 1% 73
4 JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE 8676 4% 1% 33
5 AUSTRALIAN & NEW ZEALAND JOURNAL OF OBSTETRICS & GYNAECOLOGY 8266 3% 1% 30
6 BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY 7731 3% 1% 28
7 AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY 6878 7% 0% 65
8 ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA 5446 4% 0% 34
9 GYNECOLOGIE OBSTETRIQUE & FERTILITE 5396 2% 1% 14
10 BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY 4418 3% 1% 26

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 VACUUM EXTRACTION 1094544 7% 51% 65 Search VACUUM+EXTRACTION Search VACUUM+EXTRACTION
2 INTRAPARTUM ULTRASOUND 734436 3% 89% 25 Search INTRAPARTUM+ULTRASOUND Search INTRAPARTUM+ULTRASOUND
3 FORCEPS 657149 6% 36% 56 Search FORCEPS Search FORCEPS
4 ANGLE OF PROGRESSION 533025 2% 90% 18 Search ANGLE+OF+PROGRESSION Search ANGLE+OF+PROGRESSION
5 INSTRUMENTAL DELIVERY 531718 4% 40% 40 Search INSTRUMENTAL+DELIVERY Search INSTRUMENTAL+DELIVERY
6 OPERATIVE VAGINAL DELIVERY 511842 4% 47% 33 Search OPERATIVE+VAGINAL+DELIVERY Search OPERATIVE+VAGINAL+DELIVERY
7 SUBGALEAL HEMATOMA 484565 2% 82% 18 Search SUBGALEAL+HEMATOMA Search SUBGALEAL+HEMATOMA
8 FETAL HEAD POSITION 462696 2% 94% 15 Search FETAL+HEAD+POSITION Search FETAL+HEAD+POSITION
9 OCCIPUT POSTERIOR 435477 2% 88% 15 Search OCCIPUT+POSTERIOR Search OCCIPUT+POSTERIOR
10 CEPHALOHEMATOMA 382862 2% 73% 16 Search CEPHALOHEMATOMA Search CEPHALOHEMATOMA

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 BARTH, WH , (2015) PERSISTENT OCCIPUT POSTERIOR.OBSTETRICS AND GYNECOLOGY. VOL. 125. ISSUE 3. P. 695 -709 53 88% 8
2 SCHAAL, JP , EQUY, V , HOFFMAN, P , (2008) COMPARISON VACUUM EXTRACTOR VERSUS FORCEPS.JOURNAL DE GYNECOLOGIE OBSTETRIQUE ET BIOLOGIE DE LA REPRODUCTION. VOL. 37. ISSUE 8. P. S231-S243 70 70% 11
3 RIETHRNULLER, D , RAMANAH, R , MAILLET, R , SCHAAL, JP , (2008) VACUUM EXTRACTORS: DESCRIPTION, MECHANICS, INDICATIONS AND CONTRA-INDICATIONS.JOURNAL DE GYNECOLOGIE OBSTETRIQUE ET BIOLOGIE DE LA REPRODUCTION. VOL. 37. ISSUE 8. P. S210-S221 46 87% 5
4 BAUD, O , (2008) NEONATAL OUTCOMES AFTER INSTRUMENTAL VAGINAL DELIVERY.JOURNAL DE GYNECOLOGIE OBSTETRIQUE ET BIOLOGIE DE LA REPRODUCTION. VOL. 37. ISSUE 8. P. S260-S268 46 77% 4
5 MIKSOVSKY, P , WATSON, WJ , (2001) OBSTETRIC VACUUM EXTRACTION: STATE OF THE ART IN THE NEW MILLENNIUM.OBSTETRICAL & GYNECOLOGICAL SURVEY. VOL. 56. ISSUE 11. P. 736 -751 61 65% 31
6 O'MAHONY, F , HOFMEYR, GJ , MENON, V , (2010) CHOICE OF INSTRUMENTS FOR ASSISTED VAGINAL DELIVERY.COCHRANE DATABASE OF SYSTEMATIC REVIEWS. VOL. . ISSUE 11. P. - 35 83% 28
7 EGGEBO, TM , HASSAN, WA , SALVESEN, KA , TORKILDSEN, EA , OSTBORG, TB , LEES, CC , (2015) PREDICTION OF DELIVERY MODE BY ULTRASOUND-ASSESSED FETAL POSITION IN NULLIPAROUS WOMEN WITH PROLONGED FIRST STAGE OF LABOR.ULTRASOUND IN OBSTETRICS & GYNECOLOGY. VOL. 46. ISSUE 5. P. 606 -610 29 91% 3
8 FOUCHE, CJ , SIMON, EG , POTIN, J , PERROTIN, E , (2012) ULTRASOUND IN MONITORING OF THE SECOND STAGE OF LABOUR.GYNECOLOGIE OBSTETRIQUE & FERTILITE. VOL. 40. ISSUE 11. P. 658-665 29 97% 5
9 JEVE, YB , NAVTI, OB , KONJE, JC , (2016) COMPARISON OF TECHNIQUES USED TO DELIVER A DEEPLY IMPACTED FETAL HEAD AT FULL DILATION: A SYSTEMATIC REVIEW AND META-ANALYSIS.BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY. VOL. 123. ISSUE 3. P. 337 -345 19 86% 5
10 MALVASI, A , TINELLI, A , BARBERA, A , EGGEBO, TM , MYNBAEV, OA , BOCHICCHIO, M , PACELLA, E , DI RENZO, GC , (2014) OCCIPUT POSTERIOR POSITION DIAGNOSIS: VAGINAL EXAMINATION OR INTRAPARTUM SONOGRAPHY? A CLINICAL REVIEW.JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE. VOL. 27. ISSUE 5. P. 520-526 21 100% 11

Classes with closest relation at Level 1


Rank Class id link
1 26913 GROWING SKULL FRACTURE//LEPTOMENINGEAL CYST//INTRADIPLOIC ARACHNOID CYST
2 5957 EPISIOTOMY//OBSTETRIC ANAL SPHINCTER INJURY//PERINEAL LACERATION
3 17025 PARTOGRAPH//LABOR CURVE//OXYTOCIN AUGMENTATION
4 37440 SYMPHYSIOTOMY//DESTRUCTIVE OPERATIONS//DESTRUCTIVE PROCEDURE
5 22620 CEPHALOPELVIC DISPROPORTION//PELVIMETRY//OBSTETRIC DILEMMA
6 10067 SHOULDER DYSTOCIA//ERBS PALSY//OBSTETRIC BRACHIAL PLEXUS PALSY
7 1423 UTERINE RUPTURE//VAGINAL BIRTH AFTER CESAREAN//TRIAL OF LABOR
8 22980 OBSTETRIC EMERGENCIES//PERINATAL PATIENT SAFETY//CHILTERNS
9 25757 INTRACRANIAL HAEMORRHAGE//PSEUDOTUMOUR//HEMOPHILIC PSEUDOTUMOR
10 4057 EPIDURAL ANALGESIA//LABOR ANALGESIA//ANALGESIA OBSTETRIC

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