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The Prevalence of Nocturia and Nocturnal Polyuria: Can New Cutoff Values Be Suggested According to Age and Sex?
Int Neurourol J. 2016 Dec; 20(4):304-310.IN

Abstract

PURPOSE

The aims of this study were to assess the prevalence of nocturia and nocturnal polyuria (NP) and to define new cutoff values according to age and sex for both conditions.

METHODS

Data from a population-based prevalence survey conducted among a random sample of 2,128 adults were analyzed in this study. Participants were requested to fill out a questionnaire including the International Continence Society (ICS) definitions of lower urinary tract symptoms and the International Consultation on Incontinence Questionnaire - Short Form. Additionally, a 1-day bladder diary was given to each individual. The participants were divided into 5 age groups. The prevalence of nocturia was calculated based on definitions of nocturia as ≥1 voiding episodes, ≥2 episodes, and ≥3 episodes. NP was evaluated according to the ICS definition. The mean±standard errors and 95th percentile values were calculated in each group as new cutoff values for NP.

RESULTS

The prevalence of nocturia was estimated as 28.4%, 17.6%, and 8.9% for ≥1, ≥2, and ≥3 voiding episodes each night, respectively. When nocturia was defined as 2 or more voiding episodes at night, the prevalence decreased significantly. The mean NP index was 29.4%±15.0% in men and 23.1%±11.8% in women. For the age groups of <50 years, 50-59 years, and ≥60 years, the new cutoff values for the diagnosis of NP were calculated as 48%, 69%, and 59% for men and 41%, 50%, and 42% for women, respectively.

CONCLUSIONS

We found that the definition of nocturia was still controversial and that waking up once for voiding might be within the normal spectrum of behavior. The definition of NP should be modified, and new cutoff values should be defined using the data presented in our study and in other forthcoming studies.

Authors+Show Affiliations

Department of Urology, Pamukkale University School of Medicine, Denizli, Turkey.Department of Public Health, Pamukkale University School of Medicine, Denizli, Turkey.Department of Urology, Pamukkale University School of Medicine, Denizli, Turkey.Department of Urology, Pamukkale University School of Medicine, Denizli, Turkey.Department of Urology, Istanbul University Cerrahpasa School of Medicine, Istanbul, Turkey.Department of Urology, Pamukkale University School of Medicine, Denizli, Turkey.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28043108

Citation

Zumrutbas, Ali Ersin, et al. "The Prevalence of Nocturia and Nocturnal Polyuria: Can New Cutoff Values Be Suggested According to Age and Sex?" International Neurourology Journal, vol. 20, no. 4, 2016, pp. 304-310.
Zumrutbas AE, Bozkurt AI, Alkis O, et al. The Prevalence of Nocturia and Nocturnal Polyuria: Can New Cutoff Values Be Suggested According to Age and Sex? Int Neurourol J. 2016;20(4):304-310.
Zumrutbas, A. E., Bozkurt, A. I., Alkis, O., Toktas, C., Cetinel, B., & Aybek, Z. (2016). The Prevalence of Nocturia and Nocturnal Polyuria: Can New Cutoff Values Be Suggested According to Age and Sex? International Neurourology Journal, 20(4), 304-310. https://doi.org/10.5213/inj.1632558.279
Zumrutbas AE, et al. The Prevalence of Nocturia and Nocturnal Polyuria: Can New Cutoff Values Be Suggested According to Age and Sex. Int Neurourol J. 2016;20(4):304-310. PubMed PMID: 28043108.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The Prevalence of Nocturia and Nocturnal Polyuria: Can New Cutoff Values Be Suggested According to Age and Sex? AU - Zumrutbas,Ali Ersin, AU - Bozkurt,Ali Ihsan, AU - Alkis,Okan, AU - Toktas,Cihan, AU - Cetinel,Bulent, AU - Aybek,Zafer, Y1 - 2016/12/26/ PY - 2016/03/03/received PY - 2016/04/04/accepted PY - 2017/1/4/entrez PY - 2017/1/4/pubmed PY - 2017/1/4/medline KW - Nocturia KW - Polyuria KW - Prevalence KW - Terminology SP - 304 EP - 310 JF - International neurourology journal JO - Int Neurourol J VL - 20 IS - 4 N2 - PURPOSE: The aims of this study were to assess the prevalence of nocturia and nocturnal polyuria (NP) and to define new cutoff values according to age and sex for both conditions. METHODS: Data from a population-based prevalence survey conducted among a random sample of 2,128 adults were analyzed in this study. Participants were requested to fill out a questionnaire including the International Continence Society (ICS) definitions of lower urinary tract symptoms and the International Consultation on Incontinence Questionnaire - Short Form. Additionally, a 1-day bladder diary was given to each individual. The participants were divided into 5 age groups. The prevalence of nocturia was calculated based on definitions of nocturia as ≥1 voiding episodes, ≥2 episodes, and ≥3 episodes. NP was evaluated according to the ICS definition. The mean±standard errors and 95th percentile values were calculated in each group as new cutoff values for NP. RESULTS: The prevalence of nocturia was estimated as 28.4%, 17.6%, and 8.9% for ≥1, ≥2, and ≥3 voiding episodes each night, respectively. When nocturia was defined as 2 or more voiding episodes at night, the prevalence decreased significantly. The mean NP index was 29.4%±15.0% in men and 23.1%±11.8% in women. For the age groups of <50 years, 50-59 years, and ≥60 years, the new cutoff values for the diagnosis of NP were calculated as 48%, 69%, and 59% for men and 41%, 50%, and 42% for women, respectively. CONCLUSIONS: We found that the definition of nocturia was still controversial and that waking up once for voiding might be within the normal spectrum of behavior. The definition of NP should be modified, and new cutoff values should be defined using the data presented in our study and in other forthcoming studies. SN - 2093-4777 UR - https://www.unboundmedicine.com/medline/citation/28043108/The_Prevalence_of_Nocturia_and_Nocturnal_Polyuria:_Can_New_Cutoff_Values_Be_Suggested_According_to_Age_and_Sex L2 - https://dx.doi.org/10.5213/inj.1632558.279 DB - PRIME DP - Unbound Medicine ER -
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