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You are now viewing entries beginning with the letter O (61 entries)

1. OA
acronym for Osteoarthritis (OA)
2. Obesity and Risk for Obesity
Obesity can be simply defined as being very overweight. At MCHP, the risk for obesity has been measured using the Body Mass Index (BMI) and various scales that categorize the values of the BMI. These categories identify the risk for obesity. For mo...
3. Observation
One of 13 alternate levels of care (ALC) comprising short stay encounters for patients who require close nursing observation or medical management.
4. Observation Units
A designated area within or near an Emergency Department (ED) of an acute care hospital where patients are assessed to determine if they need to be admitted to hospital. Observation may include reassessment, diagnostic testing and short-term treatment. I...
5. Obstetric Service Type
See Pregnancy and Birth Service Type glossary term.
6. Obstetrical Trauma: Vaginal Delivery, with Instrumentation
Obstetric trauma during instrument-assisted vaginal delivery is an injury to the mother while giving birth by vaginal delivery with the aid of birthing instruments such as forceps or vacuums. Obstetric trauma includes fourth degree perineal lacerations; l...
7. Obstetrical Trauma: Vaginal Delivery, without Instrumentation
Obstetric trauma during vaginal delivery without instrumentation is an injury to the mother while giving birth by vaginal delivery without the aid of birthing instruments. Obstetric trauma includes fourth-degree perineal lacerations; laceration of the cer...
8. Obstetrician/Gynecologist
A specialist that deals with the female reproductive system and pregnancy.
9. Obstructive Sleep Apnea (OSA)
Obstructive sleep apnea (OSA) is a sleep disorder in which the upper airway repeatedly collapses and is obstructed. Symptoms include choking, snoring, periods of not breathing during sleep, and waking often. OSA is associated with excessive daytime sleepi...
10. Occasional Patients
Patients attending a health care provider who receive most of their care from another provider. They are considered core patients of the other provider.
11. Occupancy Rate
An indicator of hospital performance that measures the degree to which hospital beds are full. For each hospital, it is expressed as "Number of beds occupied"/"Number of Beds".
12. Odds
The ratio of the probability of an event to that of nonoccurrence. For example, if 60 males experienced a hip fracture and 40 did not, the odds of experiencing a hip fracture in males is 60:40 or 1.5.
13. Odds Ratio
The ratio of the odds (likelihood) of an event occurring in one group to the odds of it occurring in another group, or to a data-based estimate of that ratio (e.g.: from a logistic regression model). These groups might be men and women, an experimental gr...
14. Off-Reserve First Nations
Off-Reserve First Nations includes Registered (Indian Act Status) First Nations who live outside of the First Nation community with which they are affiliated in the First Nations Research File in 2016. For more information about the Manitoba First Nations...
15. Office of the Public Trustee
See Public Trustee Office glossary term.
16. Offset Variable
An offset variable is used to adjust Poisson and Negative Binomial models for differential "exposure" in data records (e.g., different lengths of time periods, populations).
17. Older Adults
People age 65 years and older. This age group can be further grouped in young-old (65-74), middle-old (75-84) and old-old (85+) age categories.
18. Oligohydramnios Diagnosis
A pregnancy condition characterized by a low level of amniotic fluid. (Shannon DW, 2011). For more information, please read the CVS Pharmacy Health Information Center web page on
19. OLS Regression
acronym for Ordinary Least Squares (OLS) Regression
20. On-Reserve First Nations
On-Reserve First Nations includes Registered (Indian Act Status) First Nations who live within the First Nation community with which they are affiliated in the First Nations Research File in 2016. For more information about the Manitoba First Nations Rese...
21. On-Time Pass for Grade 12 Language Arts (LA) Exam
This indicator measures the percentage of residents born in Manitoba that passed the Grade 12 LA Exam 18 years later (the year they would be expected to write the exam).
22. On-Time Pass for Grade 12 Mathematics Exam
The percentage of residents born in Manitoba that passed the Grade 12 Mathematics Exam 18 years later (the year they would be expected to write the exam).
23. One Year Outcomes
An event used to describe the outcome of persons discharged home following a Long Stay in hospital, including: 1). death; 2). admission to Personal Care Home (PCH); 3). admission to a long-term care hospital (Deerlodge, Riverview); 4). receipt of home car...
24. Only Child Family
concept/Social Determinants of Health-SDOH-Digital Library-Image.jpg A family consisting of parent(s) and only one child. This includes children by both birth ...
25. Open Cases
The per cent of residents who were open in the Home Care Program, that is, the per cent of residents who were registered with the Home Care program for at least one day during a specified time period.
26. Open Cholecystectomy
see Cholecystectomy.
27. Open Home Care Cases (Prevalence)
The number of open cases of home care service per year in a two year period, per 1,000 area residents. A person may have more than one home care case in this period, and each would be counted as a separate case. Values are adjusted to reflect the total po...
28. Operations
See Procedures.
29. Ophthalmologist
A physician with specialized training who diagnoses and treats disorders of the eye. An ophthalmologist is qualified to prescribe medication, prescribe and adjust eyeglasses and contact lenses and is qualified to perform laser treatment and surgery.
30. Ophthalmoscopy
See Fundoscopy.
31. Opioid Defined Daily Doses (DDDs)
This measures the crude and adjusted average annual rate of opioid DDDs among residents aged 16 and older with at least one prescription for opioids was measured in a fiscal year. Opioids were identified by ATC codes N02A, N07BC02, R05DA01, R05DA03-R05DA...
32. Opioid Prescriptions
This measures the crude and adjusted percentage of residents aged 16 and older with at least one prescription for opioids in a fiscal year. Chronic prevalence was defined as at least three prescriptions in the fiscal year. Opioids were identified by ATC ...
33. Opioids
Opioids are a group of medications that are used in the symptomatic treatment of acute and chronic pain, and also as cough medications (Repchinsky, 2009; Krenzischek, Dunwoody, Polomano, & Rathmell, 2008; Dy et al., 2008). There is a risk of dependence an...
34. Optometrist
Although not a doctor of medicine, an optometrist is specifically trained to diagnose eye abnormalities and prescribe, supply and adjust eyeglasses and contact lenses.
35. Ordinary Least Squares (OLS) Regression
"The process of determining a regression or prediction equation to predict Y from X" (Dawson et al., 2004), using the method of least squares. In the resulting regression line, "the sum of the squared discrepancies between the actual dependent values and...
36. Organic Brain Illness
One of 13 alternate levels of care (ALC) for patients with organic brain illness waiting transfer to Selkirk Mental Health Centre.
37. Orthopedic Surgery
A branch of surgery that deals with injuries and other disorders of the musculoskeletal system. Orthopedic surgeons also address most musculoskeletal ailments including arthritis, trauma and congenital deformities using both surgical and non-surgical mean...
38. Osteoarthritis (OA)
Also known as degenerative arthritis or degenerative joint disease, and sometimes referred to as "arthrosis" or "osteoarthrosis", is a condition in which low-grade inflammation results in pain in the joints, caused by wearing of the cartilage that covers ...
39. Osteoporosis
Osteoporosis is a disease that leads to a reduction in bone density, causing the bones to become weak and more likely to break. Please see the Osteoporosis concept for more information on how this is defined, i...
40. Osteoporosis Mortality
This is the crude and adjusted mortality rate for residents age 50 and older with and without osteoporosis. Individuals were categorized as with or without osteoporosis in a three-fiscal-year period, and their mortality rate was calculated in the subseque...
41. Osteoporosis Prevalence
The percent of residents aged 50 and older with osteoporosis in a three-year period. Please see the Osteoporosis concept for more information on how this is defined, including the ICD codes and medications used...
42. OTC Medications
acronym for Over-the-Counter (OTC) Medications
43. Other Disorders
In this report, "Other Disorders" was defined as the presence of one or more ICD-9-CM code for any psychiatric condition, in either hospital discharge abstracts or medical services/physician claims data, except those who fit the descriptions used in this ...
44. Other Hospitals
All other hospitals (excluding target hospitals and Winnipeg hospitals), including smaller rural hospitals, as well as out of province hospitals and nursing stations.
45. Other Mental Health Disorders
Mental health disorders that include pediatric behavioural disorders, organic states and mental disorders attributable to addiction and mental retardation. The ICD-9-CM codes range from 290-294, 302-305, 310, 317-319.
46. Other Specialist Visits
This indicator counts the number of ambulatory visits to specialist physicians, as defined in Chartier et al. (2015). In this research, specialist physicians included: internal medicine (MD Bloc 01), psychiatry (MD Bloc 03), general surgery (MD Bloc 0...
47. Out of Hospital (OOH)
A flag used to indicate an intervention that was performed in an outpatient basis of one hospital while a patient is currently admitted as an inpatient in another hospital. For example, a patient currently admitted to a Small Rural hospital may require an...
48. Out of Province (OOP)
Out of province (OOP) may be used in two ways: it may refer to OOP patients - those who are admitted to a Manitoba hospital, but do not live in Manitoba, or it may refer to OOP hospitalizations - when Manitoba residents are admitted to ...
49. Out of Province Unique Identifier (OOPUI)
An identifier assigned to non-Manitobans in the WICUDB allowing for the identification of individuals in that database. Each time a record is added to the WICUDB for a non-Manitoban, a search is done by name and date of birth to identify prior WICUDB reco...
50. Outcome / Health Outcomes Quality Indicators (QIs)
Indicators of quality care reflect the consequences of care by evaluating the health status of individuals. (Campbell et al., 2000).
51. Outcome Assessment
A methodology to assess (health) outcomes and evaluate the effectiveness of hospital activities.
52. Outcome Measures
Reflect the consequences of care rather than the components of care. One of three key categories of measurement of quality of care, its two main domains are health status and user evaluation. The other categories are process measures and structure.
53. Outpatient
This term has different definitions in MCHP research. The majority use definition 1, or a slight variation of this defintion ... A patient who receives treatment or surgery from a hospital, but who is not admitted as an inpatient (Finlayso...
54. Outpatient Encounters
Includes visits or treatment provided by hospitals to patients on an outpatient basis.
55. Outpatient Hospital Care
Hospital care (e.g. chemotherapy, surgery) provided on an outpatient basis.
56. Outpatient Hospital Expenditures
The amount of money spent by a hospital that is attributable to outpatient services / departments.
57. Outpatient Surgical Care
Outpatient cases (day care with zero day length of stay) for surgical care recognized as falling into a surgical DRG category. Surgical procedures that could have been alternately performed on an inpatient basis like cataract surgery and hernia repair ar...
58. Over-the-Counter (OTC) Medications
Medications legally available without a physician prescription. Examples of OTC medications include acetaminophen, Tylenol, aspirin, and multivitamins.
59. Overall Acuity During Peak Flu Period
Analyses at MCHP have demonstrated seasonal patterns in the numbers of patients in hospital at Winnipeg acute care hospitals. Examining the patterns found that high-pressure periods leading to bed shortages consistently occurred during the winter months, ...
60. Ovulation
"Normal process of discharging a mature ovum from an ovary approximately 14 days prior to the onset of menses." (Olds SB et al., 2004).
61. Ovulation Induction
Ovulation induction is the stimulation of ovulation by medication.

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Manitoba Centre for Health Policy
Community Health Sciences, Max Rady College of Medicine,
Rady Faculty of Health Sciences,
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