Person—glycosylated haemoglobin level (measured), percentage N[N].N

Identifying and definitional attributes
Metadata item type:	Data Element
Short name:	Glycosylated haemoglobin level (measured)
METEOR identifier:	270325
Registration status:	Health, Standard 01/03/2005
Definition:	A person's glycosylated haemoglobin (HbA1c) level, measured as percentage.
Data Element Concept:	Person—glycosylated haemoglobin level

Value domain attributes

Representational attributes

Representation class:

Percentage

Data type:

Number

Format:

N[N].N

Maximum character length:

Supplementary values:

Value	Meaning
99.9	Not stated/inadequately described

Data element attributes

Collection and usage attributes

Guide for use:

HbA1c results vary between laboratories; use the same laboratory for repeated testing.

When reporting, record absolute result of the most recent HbA1c level in the last 12 months.

Record the absolute result of the test (%).

Collection methods:

Test is performed in accredited laboratories:

A single blood sample is sufficient and no preparation of the patient is required.
Measure HbA1c ideally using High Performance Liquid Chromatography (HPLC).

Source and reference attributes

Submitting organisation:

National diabetes data working group

Origin:

National Diabetes Outcomes Quality Review Initiative (NDOQRIN) data dictionary.

Reference documents:

Koening, R. J. Peterson, CM and Kilo, C et al. Hemoglobin A1c as an indicator of the degree of glucose intolerance in diabetes. Diabetes 259 (1976): 230-232. Nathan, D.M., Singer, D.E, Hurxthal, K, and Goodson, J.D. The clinical information value of the glycosylated hemoglobin assay. N. Eng. J. Med. 310 (1984): 341-346.