How is the BASDAI score calculated from the six questions?

Each of the first five questions is scored 0 to 10, and the sixth question (morning stiffness duration) uses anchors of 0 hours, 5 = one hour, and 10 = two or more hours. The final BASDAI score is the average of the first five questions plus the sixth question, divided by 6, multiplied by 100, then rounded to one decimal.

Can I use the BASDAI calculator on my phone?

Yes, QxMD offers free access to the BASDAI calculator on both web and app platforms without a mandatory paid subscription for this tool.

What do BASDAI score ranges mean for disease activity?

Higher BASDAI scores indicate greater disease activity; the index is commonly used to assess response to treatment in Ankylosing Spondylitis, with clinical thresholds often applied to define moderate or high disease activity.

Do I need to answer all six questions to get a score?

Yes, the calculator requires input for all six dimensions to compute the standardized BASDAI score; incomplete entries will not produce a result.

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BASDAI Score Calculator

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QxMD includes a BASDAI calculator that asks the canonical six BASDAI disease activity questions and computes the stan...

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About this tool

What BASDAI Score Calculator does

The BASDAI Score Calculator on QxMD helps patients assess disease activity in Ankylosing Spondylitis using the standard six-question index. Users rate fatigue, neck/back/hip pain, joint pain/swelling, tenderness discomfort, morning stiffness discomfort, and morning stiffness duration on a 0 to 10 scale. The tool computes the standardized score and provides formula context and references for clinical interpretation. The interface presents each question sequentially with clear 0-to-10 slider inputs, and the site offers the calculator free on web and app without requiring a paid subscription for this specific tool.

Step by step

How to use the QxMD Calculate BASDAI Score Calculator

1
Open the BASDAI calculator on QxMD
2
Rate fatigue/tiredness on a 0 to 10 scale
3
Rate AS neck, back, or hip pain on a 0 to 10 scale
4
Rate joint pain/swelling on a 0 to 10 scale
5
Rate tenderness discomfort on a 0 to 10 scale

Is it right for you

Best for

Patients with Ankylosing Spondylitis who want a quick, free way to track disease activity between clinical visits using the validated BASDAI index.

Limitations

Results are estimates based on self-reported symptoms
Requires consistent 0-to-10 rating scale understanding
Not a substitute for professional clinical assessment

Questions

BASDAI Score Calculator FAQ

How is the BASDAI score calculated from the six questions?: Each of the first five questions is scored 0 to 10, and the sixth question (morning stiffness duration) uses anchors of 0 hours, 5 = one hour, and 10 = two or more hours. The final BASDAI score is the average of the first five questions plus the sixth question, divided by 6, multiplied by 100, then rounded to one decimal.
Can I use the BASDAI calculator on my phone?: Yes, QxMD offers free access to the BASDAI calculator on both web and app platforms without a mandatory paid subscription for this tool.
What do BASDAI score ranges mean for disease activity?: Higher BASDAI scores indicate greater disease activity; the index is commonly used to assess response to treatment in Ankylosing Spondylitis, with clinical thresholds often applied to define moderate or high disease activity.
Do I need to answer all six questions to get a score?: Yes, the calculator requires input for all six dimensions to compute the standardized BASDAI score; incomplete entries will not produce a result.

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