International Consultation on Incontinence Questionnaire Nocturia Module (ICIQ-N)

The ICIQ-N is a questionnaire for evaluating the frequency of daytime and night time urination and impact on quality of life (QoL) and outcome of treatment in men and women in research and clinical practice across the world. The ICIQ-N is derived from the fully validated ICSmale and BFLUTS questionnaires to assess the impact of frequent daytime and night time urination on outcome. This short and simple questionnaire will also be of use to general practitioners and clinicians in both primary and secondary care institutions to screen for nocturia, to obtain a brief yet comprehensive summary of the level and impact of frequent urination and to facilitate patient-clinician discussions.

Number of items: 2

Question items:

  • Frequency
  • Nocturia

Associated publications:
Donovan J, Abrams P, Peters T, Kay H, Reynard J, Chapple C, de la Rosette J, Kondo A. The ICS-‘BPH’ study: the psychometric validity and reliability of the ICSmale questionnaire. BJU. 1996; 77:554-562

Jackson , S., Donovan, J., Brookes, S., Eckford, S., Swithinbank, L., & Abrams, P. The Bristol Female Lower Urinary Tract Symptoms questionnaire: development and psychometric testing. BJU . 1996; 77:805-812

Level of validation according to ICI grades of recommendation:
Grade A
Validity, reliability and responsiveness established with rigour in several data sets

Suggested modules to use in conjunction:

Completion time:
A few minutes

0-8 overall score with greater values indicating increased symptom severity
Bother scales are not incorporated in the overall score but indicate impact of individual symptoms for the patient

Available languages:
Canadian English • Canadian French • Dutch • German • Italian • Korean • Thai • UK English • US English

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