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Related to reference group: Primary group
a group with which a person identifies or wishes to belong.
A number of similar objects or structures considered together, e.g., bacteria with similar metabolic characteristics. Atomic molecules and compounds with similar structures or properties are classified with certain groups.
The hydroxyl, -OH, which imparts alcoholic characteristics to organic compounds. These exist in three forms: primary, -CH2OH; secondary, =CHOH; and tertiary, =COH.
amino acid group
The NH2 group that characterizes the amines.
In organic chemistry, the group -N=N-.
blood groupSee: blood group
clinical cooperative group
A network of clinicians and scientists who work together from widely separated locations to study and treat relatively rare diseases, e.g., certain forms of cancer. In cancer care, prominent clinical cooperative groups include the Children's Oncology Group (COG), the Gynecology Oncology Group (GOG), and the Eastern Cooperative Oncology Group (ECOG).
Coliform bacteria.See: coliform (2)
The collective term for Escherichia, Salmonella, and Shigella bacteria.
control groupControl (4).
diagnosis-related groupAbbreviation: DRG
An indexing or classification system for standardizing prospective payment for medical care. Diseases and conditions are assigned to a single DRG when they are felt to share similar clinical and health care utilization features. The reimbursement for treating all individuals within the same DRG is the same regardless of actual cost to the health care facility. See: table
|DRG Numerical Designation||Diagnosis|
|371, 372, 373, 374,388, 389, 390, 391||Childbirth with or without operative obstetrics; with or without complications|
|359||Uterine and adnexal procedures for nonmalignant diseases|
|498, 500, 243||Spinal fusion and other back and neck procedures; medical back pain|
|143, 125, 112||Chest pain; circulatory disorders other than acute myocardial infarction with cardiac catheterization|
|116||Permanent pacemaker placement or percutaneous transluminal coronary angioplasty with coronary artery stent|
|182, 183||Esophagitis, gastritis, and miscellaneous digestive disorders|
|89, 91||Simple pneumonia and pleurisy|
|127, 87||Heart failure and shock; pulmonary edema|
|106||Coronary bypass graft surgery with cardiac catheterization|
|209||Major joint and limb reattachment procedures (esp. hip and knee replacement)|
|25||Seizures and headache|
|14||Specific cerebrovascular disorders, excluding transient ischemic attack|
|79, 97, 98||Complicated respiratory infections; bronchitis and asthma|
|148||Major small and large bowel procedures|
|475||Respiratory system diagnosis with ventilator support|
|320||Kidney and urinary tract infections|
|297||Nutritional and miscellaneous metabolic disorders|
|128||Deep vein thrombosis|
|130||Peripheral vascular disorders|
|489||HIV disease with major related conditions|
An assembly of individuals affected by a specific subject (as by disease, health care delivery system, marketed service, professional or management issue) to solicit and study their opinions, identify interests, and make strategic plans to meet expressed needs.
Hh blood groupSee: blood group
historical control group
In a research study, a person or group of persons who were treated in the past and who provide contrast and comparison to participants currently being studied. Because a wide variety of variables may change over time, the use of historical controls as opposed to a contemporary control group is often an indication that an investigation has less methodological rigor.
A cluster of cells that have come from one cell, e.g., the clusters of chondrocytes in cartilage.
Kell blood groupSee: blood group
Leapfrog GroupSee: Leapfrog Group
mutual help groupSupport group.
Mycobacterium simiae-avium groupAbbreviation: SAV mycobacterium
An emerging group of nontuberculous bacilli found widely in nature. They are slow-growing, acid-fast, and occasionally cause opportunistic infections in immunocompromised patients. They are generally resistant to most antituberculous drugs.
The -CONH radical.
The nonamino acid component of a conjugated protein. It is usually the portion of an enzyme that is not an amino acid.See: apoenzyme; holoenzyme
rabies virus group
A genus of viruses whose official designation is Lyssavirus. The group includes the causative agent of rabies in humans.
reference groupControl (3).
resource utilization groupAbbreviation: RUG
Any of 44 classifications into which nursing home patients may be assigned according to their activity levels, underlying illnesses, the complexity of care they need, their cognitive status, and other variables affecting their care. The primary use is for insurance reimbursement calculations.
The monosaccharide unit, C6H10O5, a component of higher polysaccharides.
A group of patients or families of patients with similar problems such as breast cancer, multiple sclerosis, or alcoholism, who meet to assist one another in coping with their problems and seeking solutions. The composition and focus of support groups vary. Some groups comprise patients who have or have had the same disorder. Discussions often center on current treatments, resources available for assistance, and what individuals can do to improve or maintain their health. Other groups involve those who have had the same psychological and emotional trauma, such as rape or the death of a loved one. Benefits expressed by members include the knowledge that they are not alone and that others have experienced the same or similar problems and have learned to cope effectively. Synonym: mutual help group
the group against which a comparison is being made, e.g. reference sires.