Gu et al reported models for predicting the risk of decreased glomerular filtration rate for a Chinese adult. The authors are from Nanjing Medical University, Nantong University and The First Affiliated Hospital of Nanjing Medical University in China.
Patient selection: Chinese adult
Parameters:
(1) serum homocysteine concentration in µmol/L (reference range 0 to 15 µmol/L)
(2) age in years
(3) sex
Parameter
Finding
Points
beta-coefficient
homocysteine
normal
0
0
abnormal
2
0.428
age
< 46 years
0
0
46 to 52 years
3
1.08
52 to 59 years
4
1.299
>= 59 years
13
2.599
sex
male
2
0.72
female
0
0
value of X =
= SUM(beta-coefficients) - 3.293
probability of decreased GFR =
= 1 / (1 + EXP((-1) * X))
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 17
Total Score
Decreased GFR
0
0%
2
3.8%
3
17.4%
4
15.3%
5
18.5%
6
20.9%
7
20.3%
8
28.3%
13
32.6%
15
46.8%
17
62.7%
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