Statistical analysis
Statistical analyses were performed with the Statistical Package of Social Sciences version 21.0 (SPSS, Chicago, IL). The SPSS normality test was used to determine whether the data were normally distributed or not. Because the skewness and kurtosis values of our data were distributed within ±1.5 range10 it was decided that the data were distributed normally. Data were presented as means and standard deviation and numbers (n) and percent (%). One-Way ANOVA test including post-hoc analysis and χ2 test were performed for comparison of variables according to nocturia severity. P<0.05 was considered statistically significant.