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Abbreviation: OR
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Long Form No. Long Form Research Area Co-occurring Abbreviation PubMed/MEDLINE Info. (Year, Title)
odds ratio
(137423 times)
Medicine
(12218 times)
CI (76509 times)
BMI (4411 times)
HR (3419 times)
1981 Death certificate study of leukemia among farmers from Wisconsin.
operating room
(2998 times)
General Surgery
(790 times)
ICU (164 times)
LOS (118 times)
ED (102 times)
1959 Notes on chemical disinfection relevant to operating room (O.R.) activity.
risk of CAD
(411 times)
Nutritional Sciences
(33 times)
CI (92 times)
ORs (28 times)
CAD (15 times)
1999 Dietary factors in relation to rheumatoid arthritis: a role for olive oil and cooked vegetables?
Odds Ratios
(318 times)
Public Health
(47 times)
CI (111 times)
CIs (15 times)
HR (11 times)
1994 [Sociodemographic conditions and nutritional status of children under 1 year old in peripherical areas of Guadalajara, Mexico].
objective response
(312 times)
Neoplasms
(204 times)
OS (92 times)
PFS (79 times)
CR (57 times)
1980 Temporary occlusion of the hepatic artery plus infusion and systemic chemotherapy for inoperable cancer of the liver.
olfactory receptor
(262 times)
Molecular Biology
(53 times)
OSNs (11 times)
GPCRs (8 times)
SNPs (8 times)
1996 Sequence analysis in the olfactory receptor gene cluster on human chromosome 17: recombinatorial events affecting receptor diversity.
open repair
(236 times)
General Surgery
(166 times)
EVAR (111 times)
AAA (71 times)
ER (27 times)
1998 Concurrent comparison of endoluminal versus open repair in the treatment of abdominal aortic aneurysms: analysis of 303 patients by life table method.
overall response
(232 times)
Neoplasms
(101 times)
CR (148 times)
OS (68 times)
PR (53 times)
1990 [Results of combined therapy of irradiation and intra-arterial one-shot injection of cisplatin for head and neck cancers].
optic radiation
(225 times)
Chemistry
(53 times)
DTI (44 times)
FA (36 times)
ECD (32 times)
1978 Prominent excitatory pathways in the cat visual cortex (A 17 and A 18): a current source density analysis of electrically evoked potentials.
10  odorant receptor
(215 times)
Neurology
(46 times)
OSNs (48 times)
OSN (29 times)
OB (16 times)
1996 Genomic structure and transcription of a murine odorant receptor gene: differential initiation of transcription in the olfactory and testicular cells.
11  older age
(203 times)
Medicine
(30 times)
CI (29 times)
AF (6 times)
COVID-19 (6 times)
1999 Hyperfibrinogenemia is an independent risk factor for atherosclerotic renal artery stenosis.
12  opioid receptor
(134 times)
Neurology
(22 times)
MOR (11 times)
DOR (9 times)
IR (5 times)
1995 Cellular distribution of the mRNA for the kappa-opioid receptor in the human neocortex: a non-isotopic in situ hybridization study.
13  overweight
(122 times)
Public Health
(15 times)
BMI (24 times)
CI (15 times)
GWG (4 times)
2001 Gender specific associations of the Trp64Arg mutation in the beta3-adrenergic receptor gene with obesity-related phenotypes in a Mediterranean population: interaction with a common lipoprotein lipase gene variation.
14  obesity-resistant
(104 times)
Physiology
(49 times)
OP (93 times)
HFD (23 times)
LFD (8 times)
1992 Skeletal muscle composition in dietary obesity-susceptible and dietary obesity-resistant rats.
15  ovulation rate
(91 times)
Veterinary Medicine
(49 times)
LS (15 times)
IE (11 times)
UC (11 times)
1983 Testicular growth in boars of different genetic lines and its relationship to reproductive performance.
16  operational research
(78 times)
Public Health
(10 times)
TB (9 times)
MSF (4 times)
LMICs (2 times)
1991 Family planning operations research in Africa: reviewing a decade of experience.
17  orienting response
(78 times)
Psychophysiology
(39 times)
SCR (14 times)
HR (7 times)
CIT (5 times)
1975 Defensive responses to phobic stimuli.
18  older
(75 times)
Medicine
(7 times)
CI (8 times)
ORs (5 times)
BMI (4 times)
1998 [Infectious disease and sociodemographic characteristics of foreign immigrants in the Central Penitentiary for Men in Barcelona].
19  open resection
(74 times)
General Surgery
(35 times)
LR (31 times)
CR (11 times)
DDH (11 times)
1998 Cosmesis and body image after laparoscopic-assisted and open ileocolic resection for Crohn's disease.
20  object recognition
(70 times)
Behavioral Sciences
(27 times)
OP (12 times)
OF (7 times)
EPM (6 times)
2003 Chronic D-amphetamine induces sexually dimorphic effects on locomotion, recognition memory, and brain monoamines.
21  odds risk
(57 times)
Medicine
(7 times)
CI (26 times)
RR (6 times)
MD (5 times)
1989 [Influence of some ambient factors in the epidemiology of essential hypertension].
22  operation
(57 times)
General Surgery
(22 times)
CI (10 times)
CT (4 times)
CABG (3 times)
1989 The effect of hemorrhagic shock on the clotting cascade in injured patients.
23  obstructive pulmonary disease
(56 times)
Cardiology
(10 times)
CI (14 times)
COPD (11 times)
LOS (5 times)
2003 [Utilization and effectiveness of the flu vaccination in the prevention of the hospitalization induced by cardiorespiratory decompensation in high-risk patients in Caceres].
24  oocyte retrieval
(56 times)
Reproductive Medicine
(30 times)
IVF (13 times)
ET (7 times)
hCG (6 times)
1988 Programmed follicular stimulation reduces cycle cost and stress with no compromise in cycle quality: use of a modified programmed protocol.
25  oestrogen receptor
(54 times)
Pathology
(15 times)
PR (17 times)
CK (3 times)
HER2 (3 times)
1981 Effect of median raphe nucleus electrocoagulation and serotonin synthesis blockade on oestrogen receptor content of rat uterus.
26  overweight/obesity
(50 times)
Public Health
(7 times)
BMI (9 times)
CI (6 times)
CIs (3 times)
2007 Factors associated with adolescents' overweight and obesity at community, school and household levels in Xi'an City, China: results of hierarchical analysis.
27  operative time
(47 times)
General Surgery
(11 times)
CI (11 times)
LOS (7 times)
EBL (4 times)
1991 [The facilitating effect of atrial natriuretic factor on the carotid sinus baroreflex function].
28  ovarian reserve
(45 times)
Reproductive Medicine
(16 times)
AMH (20 times)
AFC (9 times)
FSH (8 times)
2000 Recurrent pregnancy loss and diminished ovarian reserve.
29  orienting reflex
(38 times)
Psychophysiology
(20 times)
SCR (7 times)
HR (6 times)
LPC (5 times)
1976 [Finger vasomotor, heart rate, and electrodermal measures of orienting and defensive reflexes (author's transl)].
30  observed
(37 times)
Neoplasms
(5 times)
CI (6 times)
ORs (3 times)
CIs (2 times)
2001 [Correlation of protoporphyrin zinc with lead in blood in workers of the car batteries industry in Bogota, Colombia].
31  occupational rhinitis
(37 times)
Occupational Medicine
(9 times)
OA (15 times)
LMW (6 times)
HMW (4 times)
1996 Nasal provocation test in the diagnostics of occupational allergic rhinitis.
32  others
(37 times)
Public Health
(6 times)
CI (10 times)
AIMP (1 time)
ASD (1 time)
2002 The contribution of prone sleeping position to the racial disparity in sudden infant death syndrome: the Chicago Infant Mortality Study.
33  overall
(36 times)
Neoplasms
(7 times)
CI (7 times)
ORs (6 times)
CR (5 times)
1999 Treatment of severe malaria with artemisinin derivatives. A systematic review of randomised controlled trials.
34  osteoporosis
(33 times)
Metabolism
(7 times)
BMD (6 times)
CI (6 times)
TSH (3 times)
2005 The contribution of serum osteoprotegerin to bone mass and vertebral fractures in postmenopausal women.
35  risk of death
(33 times)
Cardiology
(5 times)
CI (5 times)
ICU (5 times)
COVID-19 (4 times)
2008 The risk associated with hyperoncotic colloids in patients with shock.
36  origin
(30 times)
Public Health
(4 times)
CI (2 times)
STEMI (2 times)
AMI (1 time)
2000 Hepatitis C virus, hepatitis B virus and human immunodeficiency virus infection in pregnant women in North-East Italy: a seroepidemiological study.
37  overall response rate
(29 times)
Neoplasms
(18 times)
CR (11 times)
PR (10 times)
OS (6 times)
1995 An overview of phase II studies of docetaxel in patients with metastatic breast cancer.
38  outer retina
(28 times)
Ophthalmology
(14 times)
IR (10 times)
SD-OCT (10 times)
OCT (5 times)
2008 Fundus autofluorescence and Fourier-domain optical coherence tomography imaging of 10 and 20 millisecond Pascal retinal photocoagulation treatment.
39  overall complications
(28 times)
General Surgery
(8 times)
CI (3 times)
HR (3 times)
LOS (3 times)
2012 Evidence to support the use of laparoscopic over open appendicectomy for obese individuals: a meta-analysis.
40  open surgery
(27 times)
General Surgery
(12 times)
CI (6 times)
AAA (3 times)
EVAR (2 times)
2007 Comparison between the oncologic outcome of laparoscopic surgery and open surgery for T1 and T2 rectosigmoidal and rectal carcinoma: matched case-control study.
41  risk of developing SHS
(27 times)
Gastroenterology
(3 times)
CI (6 times)
CIs (4 times)
ORs (3 times)
2003 Peculiar HLA polymorphisms in Italian patients with primary biliary cirrhosis.
42  risk of mortality
(27 times)
General Surgery
(5 times)
CI (5 times)
COVID-19 (3 times)
ICU (3 times)
2016 Development and Validation of a Risk Stratification Score for Children With Congenital Heart Disease Undergoing Noncardiac Surgery.
43  kappa-opioid receptor
(26 times)
Pharmacology
(7 times)
PKC (5 times)
nor-BNI (3 times)
ATP (2 times)
1997 Gx/z is regulated by mu but not delta opioid receptors in the stimulation of the low Km GTPase activity in mouse periaqueductal grey matter.
44  overall survival
(26 times)
Neoplasms
(13 times)
CI (4 times)
HCC (3 times)
HR (3 times)
2011 Hypoxic modification of radiotherapy in squamous cell carcinoma of the head and neck--a systematic review and meta-analysis.
45  over time
(25 times)
Public Health
(2 times)
CI (4 times)
ORs (3 times)
ED (2 times)
2008 Effects of long working hours and the night shift on severe sleepiness among workers with 12-hour shift systems for 5 to 7 consecutive days in the automobile factories of Korea.
46  obstruction
(24 times)
Pediatrics
(3 times)
CI (4 times)
COPD (3 times)
BMI (2 times)
2007 Cohort differences in disease and disability in the young-old: findings from the MRC Cognitive Function and Ageing Study (MRC-CFAS).
47  ORANGE
(24 times)
Botany
(9 times)
PSY (4 times)
AtOR (2 times)
ELIPs (2 times)
2001 Composite films based on biorelated agro-industrial waste and poly(vinyl alcohol). Preparation and mechanical properties characterization.
48  Ostwald ripening
(24 times)
Chemistry
(14 times)
OA (10 times)
NP (3 times)
NPs (3 times)
2005 Spontaneously formed trans-anethol/water/alcohol emulsions: mechanism of formation and stability.
49  risk of infection
(23 times)
Science
(4 times)
CI (3 times)
ORs (2 times)
AL (1 time)
2010 Oseltamivir for treatment and prevention of pandemic influenza A/H1N1 virus infection in households, Milwaukee, 2009.
50  ouabain-resistant
(21 times)
Physiology
(9 times)
NEM (8 times)
OS (8 times)
LK (4 times)
1975 Variant HeLa cells selected for their resistance to ouabain.
51  ORadj
(20 times)
Occupational Medicine
(4 times)
CI (5 times)
ORs (3 times)
SIS (3 times)
1997 The role of diabetes mellitus in the higher prevalence of tuberculosis among Hispanics.
52  oral
(20 times)
Pharmacology
(6 times)
s.c (3 times)
CI (2 times)
EMGs (2 times)
1995 Respiratory-related control of palatoglossus and levator palatini muscle activity.
53  overall mortality
(20 times)
Medicine
(4 times)
CI (6 times)
HR (4 times)
AUC (2 times)
2010 Meta-analysis: natural history of non-alcoholic fatty liver disease (NAFLD) and diagnostic accuracy of non-invasive tests for liver disease severity.
54  oxidoreductase
(19 times)
Biochemistry
(7 times)
AFB1 (2 times)
FGFR2 (2 times)
OMST (2 times)
1991 Enzymological evidence for separate pathways for aflatoxin B1 and B2 biosynthesis.
55  occurrence of CAD
(18 times)
Cardiology
(3 times)
CI (6 times)
AKI (2 times)
CAD (2 times)
2005 Protective effect of doxycycline use on coronary artery disease?
56  other-race
(18 times)
Psychology
(6 times)
SR (12 times)
ORE (3 times)
CI (2 times)
2003 Face versus non-face object perception and the 'other-race' effect: a spatio-temporal event-related potential study.
57  observed in women
(17 times)
Medicine
(3 times)
ORs (4 times)
CIs (2 times)
MetS (2 times)
2011 N-Acetyltransferase 2 genetic polymorphisms and risk of colorectal cancer.
58  obese-resistant
(16 times)
Nutritional Sciences
(4 times)
OP (14 times)
HF (3 times)
Fos-LI (2 times)
2009 Differential feeding behavior and neuronal responses to CCK in obesity-prone and -resistant rats.
59  object relations
(16 times)
Psychology
(9 times)
SR (3 times)
CS (2 times)
AS/IO (1 time)
2003 Advances in the assessment of object relations in the 1990s.
60  operative
(16 times)
General Surgery
(7 times)
EBL (5 times)
BMI (2 times)
LOS (2 times)
2002 Hand-assisted laparoscopic splenectomy in patients with splenomegaly or prior upper abdominal operation.
61  operator
(16 times)
Molecular Biology
(5 times)
cI (2 times)
CDC (1 time)
CLL (1 time)
1975 Nucleotide sequence of the rightward operator of phage lambda.
62  overall risk
(16 times)
Neurology
(1 time)
CI (3 times)
AR (1 time)
AUDPC (1 time)
1991 The impact of a resident-directed survey on the education curriculum of a university surgical training program.
63  risk of major complications
(16 times)
Cardiology
(6 times)
CI (2 times)
PCI (2 times)
AMI (1 time)
2003 Association of extraintestinal manifestations of inflammatory bowel disease in a province of western Hungary with disease phenotype: results of a 25-year follow-up study.
64  risk of myocardial infarction
(16 times)
Cardiology
(4 times)
CI (5 times)
CVD (3 times)
ORs (3 times)
2014 Helicobacter pylori Infection Increase the Risk of Myocardial Infarction: A Meta-Analysis of 26 Studies Involving more than 20,000 Participants.
65  risk of stroke
(16 times)
Cardiology
(6 times)
CI (4 times)
BMI (2 times)
CHD (2 times)
2010 The GPIIIA PlA2 polymorphism is associated with an increased risk of cardiovascular adverse events.
66  objective response rate
(15 times)
Neoplasms
(11 times)
CR (6 times)
OS (5 times)
5-FU (3 times)
1990 An overview of the role of radiation therapy and hyperthermia in treatment of malignant melanoma.
67  occurrence
(15 times)
Cardiology
(4 times)
CI (2 times)
AAA (1 time)
ACS-NSQIP (1 time)
2008 Depression after first-ever ischemic stroke: the prognostic role of neuroanatomic subtypes in clinical practice.
68  optical rectification
(15 times)
Optics and Photonics
(14 times)
THz (6 times)
LN (3 times)
AC (1 time)
2012 Bandwidth tunable THz wave generation in large-area periodically poled lithium niobate.
69  overlap ratio
(15 times)
Biomedical Engineering
(3 times)
GA (3 times)
SD-OCT (3 times)
AAD (2 times)
2009 Automatic 3D segmentation of prostate in MRI combining a priori knowledge, Markov fields and Bayesian framework.
70  risk of breast cancer
(15 times)
Neoplasms
(6 times)
CI (3 times)
BC (1 time)
BMI (1 time)
2004 Breast cancer incidence and use of antihypertensive medication in women.
71  octapeptide repeat
(14 times)
Biochemistry
(6 times)
Cbl (3 times)
PrP (3 times)
TNF (3 times)
2005 Transgenic mice expressing bovine PrP with a four extra repeat octapeptide insert mutation show a spontaneous, non-transmissible, neurodegenerative disease and an expedited course of BSE infection.
72  odds ratio estimate
(14 times)
Epidemiology
(4 times)
CI (7 times)
CABS (2 times)
AMI (1 time)
1986 Bladder cancer and occupational exposure to leather.
73  older children
(14 times)
Pediatrics
(3 times)
CI (5 times)
PCA (2 times)
AOM (1 time)
2006 Postoperative sleep disturbance in pediatric patients using patient-controlled devices (PCA).
74  operating theatre
(14 times)
Pediatrics
(3 times)
AS (1 time)
CI (1 time)
EVAR (1 time)
1999 Laparotomy for necrotizing enterocolitis: intensive care nursery compared with operating theatre.
75  OS rate
(14 times)
Gastroenterology
(2 times)
OS (7 times)
HCC (4 times)
RFA (2 times)
2014 A meta-analysis of cytokine-induced killer cells therapy in combination with minimally invasive treatment for hepatocellular carcinoma.
76  rate of complications
(14 times)
Urology
(2 times)
CI (4 times)
MD (2 times)
WMD (2 times)
2006 Short-term maternal and neonatal outcomes by mode of delivery. A case-controlled study.
77  risk of hypertension
(14 times)
Medicine
(3 times)
CI (5 times)
BP (3 times)
CD (1 time)
2015 Associations between serum potassium and sodium levels and risk of hypertension: a community-based cohort study.
78  older patients
(13 times)
Vascular Diseases
(2 times)
BMI (2 times)
CI (2 times)
AMI (1 time)
2005 Is the management of hepatitis C patients appropriate? A population-based study.
79  open fractures
(13 times)
Orthopedics
(4 times)
CI (4 times)
A/G (1 time)
DFFs (1 time)
2012 Relationship of hyperglycemia and surgical-site infection in orthopaedic surgery.
80  Ordinal regression
(13 times)
Neural Networks (Computer)
(6 times)
AL (1 time)
BQSVOR (1 time)
CI (1 time)
2009 Block-quantized support vector ordinal regression.
81  other regimens
(13 times)
Communicable Diseases
(4 times)
CI (6 times)
AR (4 times)
ART (4 times)
2012 Effects of climatic region on peritonitis risk, microbiology, treatment, and outcomes: a multicenter registry study.
82  rupture of membranes
(13 times)
Obstetrics
(5 times)
CI (4 times)
BANA (1 time)
MoM (1 time)
1997 Elevated second trimester human chorionic gonadotropin level associated with adverse pregnancy outcome.
83  ocular rigidity
(12 times)
Ophthalmology
(8 times)
IOP (4 times)
OAG (3 times)
OPA (3 times)
2012 Ocular rigidity: biomechanical role, in vivo measurements and clinical significance.
84  Oregon
(12 times)
Environmental Health
(2 times)
WA (5 times)
ID (4 times)
CA (2 times)
2006 Environmental contaminants and biomarker responses in fish from the Columbia River and its tributaries: spatial and temporal trends.
85  overall population
(12 times)
Vascular Diseases
(2 times)
NHANES (2 times)
BMI (1 time)
BRCA (1 time)
2011 A case-control study of asphalt and tar exposure and lung cancer in minorities.
86  overall postoperative complications
(12 times)
General Surgery
(6 times)
SMD (4 times)
CI (2 times)
fURS (2 times)
2012 Laparoscopic appendectomy outcomes on the weekend and during the week are no different: a national study of 151,774 patients.
87  overall remission
(12 times)
Hematology
(4 times)
CR (8 times)
PR (6 times)
MM (4 times)
2010 [Bortezomib-based regimen for the treatment of 110 multiple myeloma patients].
88  post-operative complications
(12 times)
General Surgery
(4 times)
CI (3 times)
AGC (2 times)
BMI (2 times)
2014 An updated meta-analysis of randomized controlled trial assessing the effect of neoadjuvant chemotherapy in advanced gastric cancer.
89  risk of all-cause mortality
(12 times)
Cardiology
(5 times)
CI (5 times)
PCI (4 times)
ORs (3 times)
2014 Intravascular ultrasound-guided implantation of drug-eluting stents to improve outcome: a meta-analysis.
90  occurrence rate
(11 times)
Neurology
(6 times)
HFOs (5 times)
MI (4 times)
ES (3 times)
2005 Long-term achievement of the therapeutic objectives of lipid-lowering agents in primary prevention patients and cardiovascular outcomes: an observational study.
91  optical reflectometry
(11 times)
Chemistry
(10 times)
QCM-D (4 times)
QCM (3 times)
AFM (2 times)
2006 Effects of copolymer concentration and chain length on the pH-responsive behavior of diblock copolymer micellar films.
92  orientation relationship
(11 times)
Biophysics
(1 time)
K-S (3 times)
BN (1 time)
CRLP (1 time)
2014 Orientation relationship between alpha-Fe precipitate and alpha-Al2O3 matrix in iron-implanted sapphire.
93  osteoarthritis
(11 times)
Obesity
(1 time)
ADNC (1 time)
ANOVA (1 time)
BMI (1 time)
2009 Retrospective study of a series of 850 patients with temporomandibular dysfunction (TMD). Clinical and radiological findings.
94  oxygen radical
(11 times)
Allergy and Immunology
(2 times)
LC 9018 (2 times)
PM (2 times)
SOD (2 times)
1984 Oxygen radical production by peritoneal macrophages and Kupffer cells elicited with Lactobacillus casei.
95  risk of readmission
(11 times)
Cardiology
(1 time)
CI (2 times)
COVID-19 (2 times)
AKI (1 time)
2015 The outcomes of psychiatric inpatients by proportion of experienced psychiatrists and nurse staffing in hospital: New findings on improving the quality of mental health care in South Korea.
96  occupancy rate
(10 times)
Health Services
(3 times)
ED (3 times)
AI (1 time)
ASES (1 time)
1988 Fottler-Smith: theory of evaluating the effectiveness of nursing home administrators: an empirical analysis of determining dominant factors.
97  offspring
(10 times)
Substance-Related Disorders
(2 times)
ADHD (1 time)
BD (1 time)
BMI (1 time)
2004 Increased predisposition to cancer in brothers and offspring of testicular tumor patients.
98  opioid rotation
(10 times)
Neurology
(5 times)
MEDD (6 times)
ORR (4 times)
AEs (2 times)
1995 Opioid rotation for toxicity reduction in terminal cancer patients.
99  orally
(10 times)
Nutritional Sciences
(2 times)
i.p (3 times)
i.v (2 times)
IM (2 times)
1983 The primary humoral immune response of European green lizards (Lacerta viridis) to Leishmania agamae.
100  orbital radiotherapy
(10 times)
Endocrinology
(4 times)
GO (4 times)
IVGC (3 times)
OGC (3 times)
1997 Soluble interleukin-1 receptor antagonist serum levels in smokers and nonsmokers with Graves' ophthalmopathy undergoing orbital radiotherapy.