The Association between Nocturia and Nocturnal Polyuria in Clinical and Epidemiological Studies: A Systematic Review and Meta-Analyses

The association between nocturia and nocturnal polyuria is apparent and robust. However, the clinical importance of the association appears to be less obvious than previously suggested based on single studies. The observed high prevalence of nocturnal polyuria, as a result of the applied International Continence Society definition, may be responsible for this discrepancy.