If your bone density measurement indicates that your bone density is between 1.0 and 2.49 standard deviations (SD) below what would be expected in the average young man or woman, then you are said to have a bone density in the osteopenic range.The test measures bone mass, usually in the hip and lumbar spine, quickly and painlessly.Bone density scanning, also called dual-energy x-ray absorptiometry (DEXA) or bone densitometry, is an enhanced form of x-ray technology that is used to measure bone loss.A negative number from either score is an indication that your bones are thinner than average.Nevertheless, bone densitometry T-scores at the spine remain a very useful measure in the determination of osteoporotic status.Bone Densitometry may be of limited use in people with a spinal deformity (scoliosis) or arthritis.A Z-score matches your bone mineral density with individuals of the same age, gender, and ethnicity.
Difference Between Z Score and T Score - DifferenceBetween.com
T scores and z scores | The BMJ
Bone Density Test: Who Needs It and How Often?Z-score is a standardized number that you may see on your bone density scan results or reports.Bone density machines used different kinds of units which is why it became a common practice to report the results of bone density tests in terms of Z scores.A Z-score of -2 means the patient is 2 SDs below the reference population.
If your Z-score is -1, 0, or a positive number, your bone density is comparable to that of other people of your demographic characteristics.
In both cases, a negative score means that you have less bone density than the average.Young normal, known as your T-score, compares your bone mineral density to optimal or peak density of a 30-year old, healthy adult and determines your fracture risk, which increases as bone mineral density falls below young-normal levels.
Bone Density Test - Bones Home PageAlthough no bone density test is 100-percent accurate, the BMD test is an important predictor of whether a person will have a fracture in the future.Also on the website mentioned above, I found a converter that converts T-scores in men and non-Caucasian races for DEXA femoral neck.
BMD datasets are machine-specific, therefore the correct DXA manufacturer must be selected.The Z-score is used to compare your bone density to the average values for a person of your same age and gender.So my left femur now scores at -2.7 which officially makes me osteoporotic according to the World Health Organization (WHO) criteria.
What Is Healthy Bone Mass? | LIVESTRONG.COMZ-score The Z-score is the comparison to the age-matched normal and is usually used in cases of severe osteoporosis.
Bone mass is usually expressed as a comparison to the bone mass you would expect a normal healthy adult to have.It is a statistical comparison of how your bone density compares to normal females.A Z-score of anything between -1 and 1 is normal, a Z-score between -1 and -2.5 means you have low bone mineral density and a Z-score of -2.5 or lower means you have osteoporosis.
Put simply: a T-score of above -1 is normal, between -1 and -2.5 the bone mineral density is lower than would be expected (this can also be called osteopenia) and a score of below -2.5 indicates that you have osteoporosis.Later bone density was measured in large populations and the Z-scores were compared to the general population and not just to healthy people.The score indicates if your bone density is normal, below normal, or at the levels that indicate osteoporosis.Low T or Z scores are associated with an increased risk of bone fracture.
Bone Density - Alberta Health Services
2012 Femur Bone Mineral Density Bone Mineral Content,andThe World Health Organisation (WHO) defines osteoporosis as a T-score less than -2.5 SD. However, Z-scores are mor.
Osteoporosis is a metabolic skeletal disease defined as a reduction of bone mineral density below a defined lower limit of normal.Initial enrollment of 1,554 children ages 6 to 16 years at five clinical centers across the United States began in 2002 and ended.I just met with my gyn today to go over my bone density measurement test results.Your bone density test result also includes a Z-score that compares your bone density to what is normal in someone your age and body size.An online Z-score calculator and height adjustment guidelines are provided at the BMDCS website.
My DEXA scan z score is -2.6 what does this mean exactlyA bone density scan will provide you with a T-score as well as a Z-score.
What the Numbers Mean: A positive T-score, or a negative score up to -1.0 means your bones are in good shape.January 24th, 2013 Interpreting Bone Density T-Score and Z-Score Health and Wellbeing, by admin.The test is most accurate for women of average stature, between 5 feet and 5 feet 10 inches tall.T score compares to a 30 yo normal of the same gender and ethnicity.Results of bone density tests can be reported in several ways. T-score. Your T-score is your bone density compared to the average score of a healthy 30-year-old. (This is called the young adult reference range).
Understanding Your Bone Densitometry Results
T-score Your T-score is your bone density compared with what is normally expected in a healthy young adult of your sex.