Class information for:
Level 1: HOSPITAL VOLUME//VOLUME OUTCOME//VOLUME OUTCOME RELATIONSHIP

Basic class information
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
4 4 PSYCHIATRY//PSYCHOLOGY, CLINICAL//PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH 1867560
21 3       HEALTH CARE SCIENCES & SERVICES//HEALTH POLICY & SERVICES//ACADEMIC MEDICINE 121845
1197 2             MULTIMORBIDITY//GERIATRIC ONCOLOGY//JOURNAL OF GERIATRIC ONCOLOGY 9568
7280 1                   HOSPITAL VOLUME//VOLUME OUTCOME//VOLUME OUTCOME RELATIONSHIP 1411

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 HOSPITAL VOLUME authKW 720293 6% 38% 85
2 VOLUME OUTCOME authKW 325617 2% 54% 27
3 VOLUME OUTCOME RELATIONSHIP authKW 227188 2% 44% 23
4 HIGH VOLUME HOSPITALS authKW 204190 1% 57% 16
5 SURGEON VOLUME authKW 196709 2% 31% 28
6 SURGICAL VOLUME authKW 98558 1% 28% 16
7 PROVIDER VOLUME authKW 91195 0% 58% 7
8 FAILURE TO RESCUE authKW 89307 1% 20% 20
9 MINIMUM VOLUMES authKW 71470 0% 80% 4
10 MICHIGAN SURG ABORAT OUTCOMES EVALUAT address 65677 1% 29% 10

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Surgery 14074 53% 0% 749
2 Health Policy & Services 3458 8% 0% 119
3 Health Care Sciences & Services 3338 11% 0% 153
4 Gastroenterology & Hepatology 1320 10% 0% 137
5 Oncology 1046 16% 0% 224
6 Respiratory System 752 7% 0% 93
7 Urology & Nephrology 526 6% 0% 89
8 Cardiac & Cardiovascular System 451 8% 0% 116
9 Medicine, General & Internal 318 9% 0% 120
10 Otorhinolaryngology 177 3% 0% 39

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 MICHIGAN SURG ABORAT OUTCOMES EVALUAT 65677 1% 29% 10
2 BRAIN TUMOR STEM CELL NEUROONCOL SURG OUTCOMES 44670 0% 100% 2
3 CANC NKI 44670 0% 100% 2
4 COMM BOARD CERTIFICAT SYST EXPERT SURG 44670 0% 100% 2
5 PATIENT COMPARAT EFFECTIVENESS 44670 0% 100% 2
6 VOLUME OUTCOME STUDY GRP UROL CANC SURG 44670 0% 100% 2
7 HEALTHCARE OUTCOMES POLICY 41557 1% 10% 18
8 VA OUTCOMES GRP 111B 40829 1% 23% 8
9 M SCORE 35731 0% 40% 4
10 QUEENSLAND LIVER TRANSPLANT UNIT 33499 0% 50% 3

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF GASTROINTESTINAL SURGERY 10669 3% 1% 45
2 ANNALS OF SURGERY 10392 4% 1% 63
3 HPB 8435 1% 2% 21
4 MEDICAL CARE 7372 3% 1% 42
5 SURGERY 5237 3% 0% 49
6 JOURNAL OF THE AMERICAN COLLEGE OF SURGEONS 4903 2% 1% 34
7 ANNALS OF SURGICAL ONCOLOGY 4560 3% 1% 39
8 JAMA SURGERY 4330 1% 2% 11
9 BRITISH JOURNAL OF SURGERY 3652 3% 0% 42
10 EJSO 2948 1% 1% 19

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 HOSPITAL VOLUME 720293 6% 38% 85 Search HOSPITAL+VOLUME Search HOSPITAL+VOLUME
2 VOLUME OUTCOME 325617 2% 54% 27 Search VOLUME+OUTCOME Search VOLUME+OUTCOME
3 VOLUME OUTCOME RELATIONSHIP 227188 2% 44% 23 Search VOLUME+OUTCOME+RELATIONSHIP Search VOLUME+OUTCOME+RELATIONSHIP
4 HIGH VOLUME HOSPITALS 204190 1% 57% 16 Search HIGH+VOLUME+HOSPITALS Search HIGH+VOLUME+HOSPITALS
5 SURGEON VOLUME 196709 2% 31% 28 Search SURGEON+VOLUME Search SURGEON+VOLUME
6 SURGICAL VOLUME 98558 1% 28% 16 Search SURGICAL+VOLUME Search SURGICAL+VOLUME
7 PROVIDER VOLUME 91195 0% 58% 7 Search PROVIDER+VOLUME Search PROVIDER+VOLUME
8 FAILURE TO RESCUE 89307 1% 20% 20 Search FAILURE+TO+RESCUE Search FAILURE+TO+RESCUE
9 MINIMUM VOLUMES 71470 0% 80% 4 Search MINIMUM+VOLUMES Search MINIMUM+VOLUMES
10 LOW VOLUME HOSPITALS 57426 0% 43% 6 Search LOW+VOLUME+HOSPITALS Search LOW+VOLUME+HOSPITALS

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.

Classes with closest relation at Level 1


rank cluster_id2 link
1 10534 OPTIMAL PATIENT CARE//MORBIDITY AND MORTALITY CONFERENCE//PATIENT SAFETY INDICATORS
2 14422 BREAST CENTER//GERMAN CANCER SOCIETY//ADDITIONAL CHARGE
3 22407 JULY EFFECT//JULY PHENOMENON//RESIDENT INVOLVEMENT
4 19110 SURGICAL BACKUP//BNK//CARDIAC CATHETERIZATION DIAGNOSTIC AND INTERVENTIONAL
5 17862 ACE 27//AGGREGATED DIAGNOSIS GROUPS//CHARLSON
6 29478 SPECIALTY HOSPITALS//PHYSICIAN OWNERSHIP//BUSINESS OF MEDICINE
7 16251 PROVIDER PROFILING//LEAGUE TABLES//HOSPITAL REPORT CARDS
8 28454 RURAL SURGERY//MITHOEFER RURAL SURG//CLIN DIABET EPIDEMIOL GRP
9 13825 HOSPITAL INFORMATION SYSTEMS UTILIZATION//HOSPITAL MORTALITY DATA//LENGTH OF STAY DISTRIBUTION
10 10432 P POSSUM//SURGICAL APGAR SCORE//POSSUM

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