The Vitals Risk Index (VRI) is an early warning score for pediatric patients. The authors are from the Nationwide Children's Hospital and Ohio State University in Columbus.
Patient selection: pediatric pateint
Parameters:
(1) age in years
(2) heart rate in beats per minute
(3) respiratory rate in breaths per minute
(4) systolic blood pressure in mm Hg
(5) temperature in °F
(6) oxygen saturation in percent
(7) supplemental oxygen (oxygen flow rate or FIO2)
|
Age |
Heart Rate |
Coefficient |
|
0 to 3 months |
< 90 |
8.79 |
|
|
90 to 109 |
1.84 |
|
|
110 to 150 |
0 |
|
|
151 to 180 |
4.31 |
|
|
> 180 |
18.29 |
|
3.01 to 12 months |
< 80 |
8.79 |
|
|
80 to 99 |
1.84 |
|
|
100 to 150 |
0 |
|
|
151 to 170 |
4.31 |
|
|
> 170 |
18.29 |
|
1.01 to 4 years |
< 70 |
8.79 |
|
|
70 to 89 |
1.84 |
|
|
90 to 120 |
0 |
|
|
121 to 150 |
4.31 |
|
|
> 150 |
18.29 |
|
4.01 to 12 years |
< 60 |
8.79 |
|
|
60 to 69 |
1.84 |
|
|
70 to 110 |
0 |
|
|
111 to 130 |
4.31 |
|
|
> 130 |
18.29 |
|
> 12 years |
< 50 |
8.79 |
|
|
50 to 59 |
1.84 |
|
|
60 to 100 |
0 |
|
|
101 to 120 |
4.31 |
|
|
> 120 |
18.29 |
|
Age |
Respiratory Rate |
Coefficient |
|
0 to 3 months |
< 20 |
13.58 |
|
|
20 to 80 |
0 |
|
|
> 80 |
12.36 |
|
3.01 to 12 months |
< 20 |
13.58 |
|
|
20 to 70 |
0 |
|
|
> 70 |
12.36 |
|
1.01 to 4 years |
< 15 |
13.58 |
|
|
15 to 60 |
0 |
|
|
> 60 |
12.36 |
|
4.01 to 12 years |
< 12 |
13.58 |
|
|
12 to 40 |
0 |
|
|
> 40 |
12.36 |
|
> 12 years |
< 8 |
13.58 |
|
|
8 to 24 |
0 |
|
|
> 24 |
12.36 |
|
Age |
Systolic Blood Pressure |
Coefficient |
|
0 to 3 months |
< 50 |
20.94 |
|
|
50 to 59 |
4.16 |
|
|
60 to 80 |
0 |
|
|
81 to 100 |
0.57 |
|
|
> 100 |
1.31 |
|
3.01 to 12 months |
< 70 |
20.94 |
|
|
70 to 79 |
4.16 |
|
|
80 to 100 |
0 |
|
|
101 to 120 |
0.57 |
|
|
> 120 |
1.31 |
|
1.01 to 4 years |
< 75 |
20.94 |
|
|
75 to 89 |
4.16 |
|
|
90 to 110 |
0 |
|
|
111 to 125 |
0.57 |
|
|
> 125 |
1.31 |
|
4.01 to 12 years |
< 80 |
20.94 |
|
|
80 to 89 |
4.16 |
|
|
90 to 120 |
0 |
|
|
121 to 130 |
0.57 |
|
|
> 130 |
1.31 |
|
> 12 years |
< 85 |
20.94 |
|
|
85 to 99 |
4.16 |
|
|
100 to 130 |
0 |
|
|
131 to 150 |
0.57 |
|
|
> 150 |
1.31 |
|
Parameter |
Finding |
Coefficient |
|
temperature |
< 101.3 |
0 |
|
|
101.3 to 104 |
9.01 |
|
|
> 104 |
14.27 |
|
oxygen saturation |
< 85% |
19.8 |
|
|
85 to 95% |
5.06 |
|
|
> 95% |
0 |
|
supplemental oxygen |
<= 0.45 L/min, FIO2 <= 21% |
0 |
|
|
0.46 to 6.5 L/min, 22 to 31% |
4.94 |
|
|
> 6.5 L/min, FIO2 > 31% |
13.12 |
total score =
= SUM(points for all of the coefficients)
Interpretation:
• minimum score: 0
• maximum score: 100
• The higher the VRI the worse the patient's condition.
Performance:
• The area under the ROC curve is 0.76.
