CDAI Calculator

To calculate CDAI, simply add the counts of swollen and tender joints, and include patient and evaluator global assessments to get the total score.

The CDAI (Clinical Disease Activity Index) is a straightforward and widely used tool in medical field. It aims to assess the activity of rheumatoid arthritis (RA). Moreover, it facilitates the medical professionals in tracking the severity and response to treatments in individuals with RA.

This index includes the number of tender and swollen joints, and assessments by both the patient and healthcare provider. Being aware of your CDAI score can assist in understanding your condition better.

Formula:

Contents

1 Formula:
2 Solved Calculation:
3 What is A CDAI Calculator?
4 Final Words:

CDAI = SJC + TJC + PGA + EGA

Symbol	Description
SJC	Swollen Joint Count
TJC	Tender Joint Count
PGA	Patient Global Assessment (0 to 10 scale)
EGA	Evaluator Global Assessment (0 to 10 scale)

Solved Calculation:

Example 1:
Scenario: A patient has a swollen joint count (SJC) of 6, a tender joint count (TJC) of 7, a patient global assessment (PGA) of 4, and an evaluator global assessment (EGA) of 3.

Step	Calculation
Add Swollen Joint Count (SJC)	6
Add Tender Joint Count (TJC)	7
Add Patient Global Assessment (PGA)	4
Add Evaluator Global Assessment (EGA)	3
Total CDAI Score	6 + 7 + 4 + 3 = 20

Answer: The CDAI score is 20.

Example 2:
Scenario: A patient has a swollen joint count (SJC) of 8, a tender joint count (TJC) of 5, a patient global assessment (PGA) of 3, and an evaluator global assessment (EGA) of 4.

Step	Calculation
Add Swollen Joint Count (SJC)	8
Add Tender Joint Count (TJC)	5
Add Patient Global Assessment (PGA)	3
Add Evaluator Global Assessment (EGA)	4
Total CDAI Score	8 + 5 + 3 + 4 = 20

Answer: The CDAI score is 20.

What is A CDAI Calculator?

The CDAI Calculator is a vital tool for assessing the Crohn’s Disease Activity Index (CDAI). To know this index greatly helps in measuring the severity of symptoms in patients with Crohn’s disease. It uses several components such as abdominal pain, general well-being, and the presence of complications to generate a CDAI score. The CDAI score interpretation helps healthcare professionals understand the current state of the disease and decide on the best treatment approach.

For rheumatoid arthritis (RA), a similar tool is used to evaluate the CDAI score based on joint assessments and patient-reported symptoms. This score can be compared to related measures like the SDAI score to give a comprehensive understanding of disease activity.

Final Words:

Shortly, the CDAI Calculator offers a straightforward way to monitor disease activity in Crohn’s and rheumatoid arthritis. It assists doctors in tailoring treatment plans based on specific CDAI score ranges and symptom severity.