Reliability of the international spinal cord injury urodynamic basic data set version 1.0

Area of Science:

• Urology
• Nephrology
• Rehabilitation Medicine

Background:

• Urodynamic assessment is crucial for managing neurogenic bladder in spinal cord injury (SCI).
• Standardized data collection tools are needed to improve the consistency and reliability of urodynamic evaluations in SCI.
• The International SCI Urodynamic Basic Data Set (UBS) was developed to standardize this process.

Purpose of the Study:

• To evaluate the interrater and intrarater reliability of version 1.0 of the International SCI Urodynamic Basic Data Set (UBS).
• To determine the clinical utility of the UBS for urodynamic assessment in individuals with SCI.

Main Methods:

• A cross-sectional study was conducted at a urodynamic clinic.
• Two independent raters analyzed urodynamic tracings from 50 SCI patients.
• Each rater completed the UBS twice, with a 1-month interval between assessments, to assess intrarater reliability.
• Interrater and intrarater reliability were analyzed using Kappa, Weighted Kappa, and Intraclass Correlation Coefficient (ICC).

Main Results:

• Interrater reliability for most UBS items was substantial to almost perfect (0.78-0.99).
• Intrarater reliability ranged from fair to almost perfect for the first rater (0.37-1.00) and moderate to almost perfect for the second rater (0.51-1.00).
• Lower reliability was noted for bladder compliance and urethral function items.

Conclusions:

• The International SCI Urodynamic Basic Data Set (UBS) version 1.0 demonstrates acceptable interrater and intrarater reliability for most items.
• While bladder compliance and urethral function showed lower reliability, these have been addressed in subsequent versions.
• The UBS is considered clinically useful for urodynamic assessment in SCI patients due to its simplicity and reliability.