De Araujo Nobre et al reported a risk score for periodontitis. This can help to identify a patient who may benefit from aggressive care. The authors are from Malo Clinic in Lisbon.
Patient selection: adult
Parameters:
(1) age in years
(2) smoking
(3) number of observations in first year
(4) gingivitis present at baseline
(5) subgingival calculus at baseline
(6) history of periodontitis
Parameter
Finding
Points
age in years
<= 53 years
-1
> 53 years
0
smoking
nonsmoker
0
smoker
2
number of observations
0 or 1
2
>= 2
0
gingivitis at baseline
no
0
yes
2
subgingival calculus
no
0
yes
1
history of periodontitis
no
0
yes
1
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: -1
• maximum score: 8
Total Score
Risk Group
Incidence of Periodontitis
-1 or 0
low
4%
1 or 2
moderate
22%
3 to 8
high
28%
Performance:
• The area under the ROC curve is 0.75.
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