Koopman et al developed a tool to screen an adult for findings associated with an elevated fasting blood glucose level. The authors are from the University of Missouri and University of South Carolina.
TAG-IT is derived from Tool + Assess + Glucose + ImpairmenT.
Parameters:
(1) age in years
(2) gender
(3) body mass index (BMI)
(4) family history of diabetes mellitus
(5) heart rate in beats per minute
(6) hypertension
|
Parameter |
Finding |
Points |
|
age of the patient |
20 to 27 years of age |
0 |
|
|
28 to 35 years of age |
1 |
|
|
36 to 44 years of age |
2 |
|
|
45 to 64 years of age |
4 |
|
gender |
female |
0 |
|
|
male |
3 |
|
body mass index |
< 25 kg per square meter |
0 |
|
|
25 to 29.9 kg per sq meter |
2 |
|
|
>= 30 kg per square meter |
3 |
|
family history of diabetes |
no |
0 |
|
|
yes |
1 |
|
heart rate |
< 70 beats per minute |
0 |
|
|
70 to 79 beats per minute |
1 |
|
|
80 to 99 beats per minute |
2 |
|
|
>= 100 beats per minute |
4 |
|
hypertension |
absent |
0 |
|
|
present |
1 |
total score =
= SUM(points for all 6 parameters)
Interpretation:
• minimum score: 0
• maximum score 16
• The higher the score the more likely that the patient will show an elevated fasting glucose concentration.
• A cutoff of >= 5 has the greatest sensitivity. A cutoff of >= 6 or >= 7 give similar Youden scores (0.35).
Performance:
• A cutoff >= 5 has a sensitivity of 87% and specificity of 43%.
• A cutoff >= 6 has a sensitivity of 79% and specificity of 56%.
• A cutoff >= 7 has a sensitivity of 66% and specificity of 69%.
• The area under the ROC curve was 0.74.
Specialty: Endocrinology, Clinical Laboratory
ICD-10: ,
