One of the most commonly used assessment tools for men with lower urinary
tract symptoms is the International Prostate Symptom Score
(IPSS). An alternative assessment tool is the Overactive Bladder Symptom Score (OABSS) which has been found to be reliable
and valid and highly responsive to treatment related fluctuations in
overactive bladder symptoms. This tool is also recommended in women with
OAB for evaluation after anticholinergic drug treatment. Repeating the test after an
acceptable treatment interval is an effective way to assess
the efficacy of a particular drug regimen on OAB symptoms.
The OABSS questionnaire was designed to quantify OAB symptoms as a single
score, and contains questions that address four symptoms of overactive
The OABSS has a maximum score of 15 with more weight assigned to
urgency and urgency incontinence than on frequency.