Rheumatology

Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Fatigue severity (0–10)

Neck, back, or hip pain severity (0–10)

Peripheral-joint pain or swelling severity (0–10)

Localized tenderness/discomfort severity (0–10)

Morning-stiffness severity (0–10)

Morning-stiffness duration mapped to 0–10

Complete all required inputs to calculate the score.

Fatigue severity (0–10)Accepted range: 0 to 10
Neck, back, or hip pain severity (0–10)Accepted range: 0 to 10
Peripheral-joint pain or swelling severity (0–10)Accepted range: 0 to 10
Localized tenderness/discomfort severity (0–10)Accepted range: 0 to 10
Morning-stiffness severity (0–10)Accepted range: 0 to 10
Morning-stiffness duration mapped to 0–10Accepted range: 0 to 10

Garrett S et al. A new approach to defining disease status in ankylosing spondylitis: the BASDAI. J Rheumatol (1994)