Undifferentiated Connective Tissue Disease (UCTD) Risk Score

Estimate the probability and timeline of UCTD evolution to a defined connective tissue disease (CTD) using clinical features, autoantibody profile, and disease duration. 30-40% of UCTD evolves within 5 years.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
Advertisement

How It Works

Estimate the probability and timeline of UCTD evolution to a defined connective tissue disease (CTD) using clinical features, autoantibody profile, and disease duration. 30-40% of UCTD evolves within 5 years

Each component has a specific meaning:

  • Clinical features — The clinical features recorded for the scenario being assessed.
  • Autoantibody profile — The autoantibody profile recorded for the scenario being assessed.
  • Disease duration — The disease duration recorded for the scenario being assessed.

Note: Interpret the uctd risk score result against the thresholds and context described above.

How to Use

Enter the clinical features, autoantibody profile, disease duration for the scenario you are assessing. Estimate the probability and timeline of UCTD evolution to a defined connective tissue disease (CTD) using clinical features, autoantibody profile, and disease duration. 30-40% of UCTD evolves within 5 years. Use the uctd risk score result to inform your calculation.

Related Calculators

ANA Titer/Pattern

Hyper-niche Medical

mRSS SSc

Hyper-niche Medical

Frequently Asked Questions