Study design, materials and methods
The patients, who applied to the functional urology outpatient clinic due to LUTS between March 2021 and June 2021 and filled out required questionnaires, were included. All patients underwent UF and peak flow rate (Qmax, ml/sec), and average flow rate (Qavg, ml/sec) were recorded. The International Prostate Symptom Score (IPSS), the Visual Prostate Symptom Score (VPSS) were used in men, and the International Consultation on Incontinence Modular Questionnaire-Female Lower Urinary Tract Symptoms (ICIQ-FLUTS) in women. Depression and anxiety conditions of the patients were evaluated with HADS in all patients. The parameters of UF and all scores were compared.
Results
A total of 70 patients (min: 30, max:70 years) were included in the study. The median age of the patients was 51 years (IQR 41-62), 39 (57%) were male, and 31 (43%) were female. Qmax was 15 ml/sec (IQR 11-26), Qavg 11 ml/sec (IQR 7-14), median voided volume 335 ml (IQR 177-456). IPPS was found to be 16 (IQR 11-23), VPSS 13 (IQR 10-16) in males, and ICIQ-FLUTS 78 (IQR 38-100) in females. The median depression score of the patients was 7 (IQR 5-10) and the anxiety score was 8 (IQR 5-12).
There was a negative correlation between Qmax, Qavg, and IPSS, VPSS in males (p<0.01) (Table 1). Also, a positive correlation was found between IPSS and HADS anxiety (p:0.002), HAD depression (p=0.016); and between VPSS and HADS anxiety (p:0.018), HAD depression (p=0.028). Similarly, there was a positive correlation between ICIQ-FLUTS and HADS depression (p=0.033) in females, however, the correlation was absent between ICIQ-FLUTS and HADS anxiety (p=0.058) (Table 2). Qmax and Qavg were found not to be associated with HADS in females (p=0.08, p=0.07, p=0.07, p=0.09, respectively).
Interpretation of results
There are many studies in the literature comparing VPSS and IPSS in the evaluation of LUTS in men. In a prospective study, Ceylan et al reported a positive correlation between total IPSS and total VPSS in men with LUTS (r = 0.72; p <.001) [1]. Similarly in our study, we were found a positive correlation between IPSS and VPSS values (p=0.034).
Although the relationship between anxiety, depression, and LUTS has received increasing attention recently, the nature of the causal relationship between them is still unclear. Huang et al. discovered that the incidence of anxiety/depression was higher in the LUTS group than in the non-LUTS group with a hazard ratio of 2.12 and 2.03, respectively [2]. Similar to our study, anxiety, and depression scores were found to be correlated with LUTS symptom scores.