Galen eCalcs - Calculator: Simple Disease Activity Index (SDAI)

Description

The Simple Disease Activity Index for Rheumatoid Arthritis (SDAI) is the numerical sum of five outcome parameters: tender and swollen joint count (based on a 28-joint assessment), patient and physician global assessment of disease activity [visual analogue scale (VAS 0-10 cm], and level of C-reactive protein (mg/dl, normal <1 mg/dl). This calculator is associated with the Rheumatology specialty.

Calculator Configuration Options

Preference Name	Valid Range	Description
Publishing	Checked / Unchecked	When checked the calculator will display for users on the front end. When unchecked, the calculator WILL NOT display for users on the front end.
Orderable Item Override	(BLANK) / G-SDAI	“(BLANK)” indicates that the global configuration options for Orderable Item will be used. “G-SDAI” indicates that the calculator specific value will be used and can display the specific calculator name in the output.
Show Full Questions in Annotations	True / False	When checked the calculator will display for users on the front end. True will enable the display of the full calculator input question text (rather than Q1, Q2, etc.) in the result output annotations. False will disable the display of the full calculator input question text and display the question numbers and answers only in the result output annotations.

Calculator Inputs

Input	Mapping Type	Description
CRP	Result	Any result item for C-Reactive Protein

Calculator Outputs

Output	Mapping Type	Description
Interpretation	Result	The textual interpretation of the SDAI score
Score	Result	The SDAI score value (0 - 86) References https://www.rheumatology.org/Portals/0/Files/SDAI%20Form.pdf