{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T20:00:12Z","timestamp":1778097612598,"version":"3.51.4"},"reference-count":25,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2020,10,21]],"date-time":"2020-10-21T00:00:00Z","timestamp":1603238400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Neurourology and Urodynamics"],"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aims<\/jats:title><jats:p>Nocturnal polyuria (NP) is defined by the International Continence Society (ICS) as \u201cexcessive production of urine during the main sleep period\u201d and is one of the main causes of nocturia. The ICS recognized that \u201cexcessive\u201d is not clearly defined and that this needs to be highlighted in both clinical and research settings. The aim of this study was to identify different definitions of NP and apply them to a population of women attending the Urogynaecology clinic.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This was a retrospective study of complete bladder diaries collected from women attending a tertiary Urogynaecology Unit. Six different definitions were identified and were divided into \u201cabsolute,\u201d \u201crelative,\u201d and \u201cfunctional definitions.\u201d Prevalence data were calculated and values generated for sensitivity, specificity, positive and negative predictive values when related to women voiding\u2009\u2265\u20092 times per night.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Complete bladder diaries were obtained from 1398 women, over 6 years, with a mean age of 57 years. Prevalence varied across the definitions from 21.5% (absolute definition) to 77% (relative definition). Sensitivity ranged from 43% (absolute) to 87% (relative). The definitions that showed the highest combined sensitivity and specificity were the functional definitions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>From this study it is clear that more work needs to be done to arrive at a consensus for defining NP to enable accurate diagnosis and development of treatment pathways. We propose that a relative definition may provide a more clinically relevant method of defining NP.<\/jats:p><\/jats:sec>","DOI":"10.1002\/nau.24546","type":"journal-article","created":{"date-parts":[[2020,10,21]],"date-time":"2020-10-21T17:26:19Z","timestamp":1603301179000},"page":"265-271","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Defining nocturnal polyuria in women"],"prefix":"10.1002","volume":"40","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3689-1012","authenticated-orcid":false,"given":"Georgina","family":"Baines","sequence":"first","affiliation":[{"name":"King\u2032s College Hospital  London England"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ana Sofia","family":"Da Silva","sequence":"additional","affiliation":[{"name":"King\u2032s College Hospital  London 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