A Population-Based Study of Factors Associated With Nocturia in Reproductive-Aged Turkish Women

Purpose: This study aimed to investigate the prevalence of nocturia according to the International Continence Society (ICS) definition in Turkish women and to determine the associated risk factors and the correlation of other voiding symptoms with nocturia. Materials and Methods: A prospective epidemiological study was carried out by use of self-reported questionnaires in 4,250 reproductive-aged women from January 2013 to May 2013. The International Consultation on Incontinence Questionnaire-Short Form and a questionnaire developed by the researchers according to the ICS were administered to define nocturia and other lower urinary tract symptoms. Other physical, reproductive, and health characteristics were also recorded concurrently. Results: Overall, 1,636 women were included in the final analyses. The women had an average age of 34.4 +/- 5.26 years. The overall prevalence of nocturia was 34.7% ( 567 of 1,636 women). Women with nocturia were older (p<0.001), had a higher body mass index (p=0.026), and had more children (p<0.001). Nocturia occurred more frequently in women with a history of nocturnal enuresis (p<0.001). Three or more pregnancies, 3 or more deliveries, and age >40 years were significant risk factors for nocturia. We also found that other lower urinary tract symptoms correlated significantly (p<0.001) with nocturia. Conclusions: Although the prevalence of nocturia is higher with increasing age, younger adults are also affected. Nocturia may cause sleep disorders, mood disturbances, reduced quality of life, and distractibility. Thus, even if one void nightly causes a patient to experience bother, nocturia should be queried about and should be treated if necessary according to the cause of the disease.