{"title":"Derivation and validation of a symptom-anchored diagnostic criterion for nocturnal polyuria in women: aligning with aging physiology.","authors":"Pei-Chi Wu, Sheng-Mou Hsiao, Ho-Hsiung Lin","doi":"10.1097/GME.0000000000002857","DOIUrl":null,"url":null,"abstract":"<p><strong>Objectives: </strong>To investigate the physiological validity of current diagnostic criteria for nocturnal polyuria and to derive and validate a symptom-anchored revision consistent with female aging.</p><p><strong>Methods: </strong>This retrospective cross-sectional study analyzed 3-day bladder diaries from 3,000 women with lower urinary tract symptoms. We assessed age-specific nocturnal polyuria prevalence using current International Continence Society definitions (nocturnal polyuria index ≥33% for women >66 y and ≥20% for women ≤65 y). To address discrepancies with aging physiology, a novel cutoff was derived using the Youden index anchored to symptom bother (King's Health Questionnaire nocturia severity score ≥1). The proposed composite definition (nocturnal polyuria index ≥28% plus symptom score ≥1) was validated using multivariable regression and randomized split-sample validation (training: n=2,500; validation: n=500).</p><p><strong>Results: </strong>Under current criteria, nocturnal polyuria prevalence was higher in younger women (75.5%) compared with older women (50.5%). Multivariable analysis identified age as a protective factor (odds ratio: 0.96; 95% CI: 0.95-0.97), inconsistent with physiology. Conversely, the proposed new definition identified age as a significant positive risk factor (odds ratio: 1.03; 95% CI: 1.02-1.04). Prevalence remained stable at 26.8% (one-in-four) in premenopausal women, rising linearly to 46.3% (one-in-two) in postmenopausal women. Internal validation confirmed model stability (area under curve: 0.86; 95% CI: 0.83-0.90).</p><p><strong>Conclusions: </strong>Current age-stratified thresholds of nocturnal polyuria result in discrepancies with aging physiology. The proposed framework establishes a physiologically plausible standard. By anchoring symptom bother score and nocturnal polyuria index of 28%, this definition facilitates the identification of symptomatic women and highlights the distinct impact of menopause.</p>","PeriodicalId":18435,"journal":{"name":"Menopause: The Journal of The North American Menopause Society","volume":" ","pages":""},"PeriodicalIF":3.9000,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Menopause: The Journal of The North American Menopause Society","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1097/GME.0000000000002857","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OBSTETRICS & GYNECOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Objectives: To investigate the physiological validity of current diagnostic criteria for nocturnal polyuria and to derive and validate a symptom-anchored revision consistent with female aging.
Methods: This retrospective cross-sectional study analyzed 3-day bladder diaries from 3,000 women with lower urinary tract symptoms. We assessed age-specific nocturnal polyuria prevalence using current International Continence Society definitions (nocturnal polyuria index ≥33% for women >66 y and ≥20% for women ≤65 y). To address discrepancies with aging physiology, a novel cutoff was derived using the Youden index anchored to symptom bother (King's Health Questionnaire nocturia severity score ≥1). The proposed composite definition (nocturnal polyuria index ≥28% plus symptom score ≥1) was validated using multivariable regression and randomized split-sample validation (training: n=2,500; validation: n=500).
Results: Under current criteria, nocturnal polyuria prevalence was higher in younger women (75.5%) compared with older women (50.5%). Multivariable analysis identified age as a protective factor (odds ratio: 0.96; 95% CI: 0.95-0.97), inconsistent with physiology. Conversely, the proposed new definition identified age as a significant positive risk factor (odds ratio: 1.03; 95% CI: 1.02-1.04). Prevalence remained stable at 26.8% (one-in-four) in premenopausal women, rising linearly to 46.3% (one-in-two) in postmenopausal women. Internal validation confirmed model stability (area under curve: 0.86; 95% CI: 0.83-0.90).
Conclusions: Current age-stratified thresholds of nocturnal polyuria result in discrepancies with aging physiology. The proposed framework establishes a physiologically plausible standard. By anchoring symptom bother score and nocturnal polyuria index of 28%, this definition facilitates the identification of symptomatic women and highlights the distinct impact of menopause.
期刊介绍:
Menopause, published monthly, provides a forum for new research, applied basic science, and clinical guidelines on all aspects of menopause. The scope and usefulness of the journal extend beyond gynecology, encompassing many varied biomedical areas, including internal medicine, family practice, medical subspecialties such as cardiology and geriatrics, epidemiology, pathology, sociology, psychology, anthropology, and pharmacology. This forum is essential to help integrate these areas, highlight needs for future research, and enhance health care.