A home-based method for the detection of impaired glucose tolerance in hypertensive primary care patients.
OBJECTIVE
The aim of this project was to compare an oral glucose tolerance test (OGTT) partly performed in the patient's home (OGTTh) with a clinic-obtained OGTT with regard to the ability of the tests to identify patients with impaired glucose tolerance (IGT) and type 2 diabetes mellitus (DM-2).


METHODS
A method comparison.


METHODS
The study was completed at two primary health care centres.


METHODS
Fifty-one patients with hypertension aged 50-79 years completed both OGTT tests.


METHODS
Values for capillary P-glucose obtained two hours after a glucose load were compared between the two OGTT tests. Fasting plasma glucose (fP-glucose) and HbA1c were also measured.


RESULTS
Thirty-seven patients were classified in the same group (normal/IGT/DM-2) by the two tests. The index of validity based on the test's ability to identify normal or pathological values (≥ 8.9 mmol/l) was 0.75. The value for kappa was 0.66 with a sensitivity of 0.54 and a specificity of 0.82.


CONCLUSIONS
OGTTh may be a useful screening method for IGT in risk groups such as hypertensive patients.
Viktoriakliniken Halmstad , Sweden.
Lukas
L
Zandén
Håkan
H
Bergh
D000368:Aged; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology / Q000378:metabolism*; D005260:Female; D005947:Glucose / Q000378:metabolism*; D005951:Glucose Tolerance Test / Q000379:methods*; D006442:Glycated Hemoglobin / Q000378:metabolism; D006801:Humans; D006973:Hypertension / Q000453:epidemiology / Q000378:metabolism*; D008297:Male; D008403:Mass Screening / Q000379:methods; D008875:Middle Aged; D017063:Outcome Assessment, Health Care / Q000706:statistics & numerical data; D011237:Predictive Value of Tests; D011320:Primary Health Care / Q000379:methods*; D012307:Risk Factors; D012680:Sensitivity and Specificity; D013997:Time Factors
D005947:Glucose; D006442:Glycated Hemoglobin
Diabetes; IGT; OGTT; Sweden; general practice; home test; hypertension; validity