ISSN 1728-2985
ISSN 2414-9020 Online

Comparison of the International Prostate and Visual Prostate Symptom Scores in Turkish patients

S. Caliskan, M. Sungur

1 Health Sciences University, Kanuni Sultan Süleyman Training and Research Hospital, Department of Urology, İstanbul, Turkey; 2 Hitit University, Çorum Erol Olçok Training and Research Hospital, Department of Urology, Çorum, Turkey
Introduction. Benign prostate hyperplasia is one of the most common disease in elderly men. The patients usually present lower urinary tract symptoms including frequency, urgency, nocturia and interittancy. The prostate symptom scores are usually used for daily urology practice. We aimed to compare the International Prostate Symptom Score and Visual Prostate Symptom Score in Turkish patients. Methods. The study protocol was conducted from from February to August 2017. The patients presenting with lower urinary tract symptoms over the age of 45 years were included. The age, prostate specific antigen level, education level and symtom scores were recorded. The patients with history of neurological disease, prostatic surgery, radiotherapy and any malignancy were excluded. Results. There were 81 patients in the current study. The mean age and PSA level was 58.86±7.39 years and 1,94±1,77 ng/ml. Most of the patients (54.32%) had primary level of education and the patients who were graduated from university (19.75%) followed. The secondary and high school level was 12.34% and 13.58% respectively. The fully complete rate of the symptom scores 37% for IPSS and 9.8% for VPSS and 81% for CSS (p<0.05). In the patients with fully complete; there was no significant difference for patients’ education level and age. Conclusions. The IPSS and VPSS are established symtom scores for patients with benign prostate hyperplasia. The difficulties to understand and translate problems of these questionnaires; new, mother language originated symptom score is needed for Turkish patients.

Keywords

symptom
prostate
questionnaire

Introduction. Benign prostate hyperplasia(BPH) is the most common benign disease in American men [1]. Aproximetely, BPH affects 75 and 83% of the men in the seventh and eigth decade of life respectively. The patients with BPH usually present lower urinary tract symptoms (LUTSs). The LUTSs include storage, voiding and postvoiding associated symptoms and are seen in 30% of the men over the age of 65 years [2]. In 1992, the World Health Organization accepted to use symptom score which was developed by American Urological Association [3]. This symptom score was called International Prostate Symptom Score (IPSS) which includes seven questions about bladder emptying, frequency, intermittancy, urgency, weak stream, nocturia and straining [4]. A new symptom score was developed by Walt et al in 2011 that was called Visual Prostate Symptom Score (VPSS) [5]. The VPSS has advantages about simplicity and easy understandable for elderly men when comparing the IPSS [3].

In this stuy, we aimed to compare the answering of IPSS and VPSS for the patients presenting with LUTS in urban area (Çorum city) of Turkey.

Methods. Data were recorded prospectively from the patients who were admitted to Hitit Universtiy, Çorum Erol Olçok Training and Research Hospital for LUTS over the age of 45 years from February to August 2017. The patients were requested to fill the IPSS and VPSS without any assistance. The IPSS included 8 questions for irritative symptoms (2, 4, 7. questions (Qs)), obstructive symptoms (1, 3, 5, 6 Qs) and quality of life (8.Q); VPSS consisted 4 pictograms; 1 and 2 for irritative symptoms, 3 for obstructive symptom and 4 for quality of life. The education level, age and PSA level of the patients were noted. The questionnaires were evaluated for the patients completed or not with themselves. The patients who had history of prostate surgery, urethral stricture, radiotherapy and neurological disorders were excluded from the study.

The statistical analyses were performed using MedCalc Statistical Software demo version 16.2.0 (MedCalc Software bvba, Ostend, Belgium; https://www.medcalc.org; 2016). The data was expressed as mean+standard deviation and chi squared test was used for percentage, p value <0.05 was considered as statistically significant.

Results: There were 81 patients in the study. The mean age of the patients was 58.86±7.39 years. The education levels and demographic characteristics of the patients are shown in

Table 1. According to the Turkish education level; primary school (5 years), secondary school (8 years), high school (12 years) and university. 44 patients had primary, 10 had secondary and 11 patients had high school education level. There was 16 patients who had graduated from university.

The IPSS and VPSS questionnaires were completed by 30 and 8 patients without assistance respectively. Table 2 shows the comparison analysis between VPSS and IPSS for the education levels of the patients about full complete. There was no significant difference for education level between the full complete response of questionnaires (p=0.823).

Discussion: Benign prostate hyperplasia associated LUTS is very common problem in middle age or older men [6]. The IPSS is a useful questionnaire for evaluating the severity of LUTS and treatment efficacy of BPH in follow up [7]. Therefore guidelines recommend that IPSS can be used in the evaluation and follow up period for LUTS and BPH. The IPSS includes 8 questions; the first 7 questions were to evaluate storage and voiding symptoms and the patients choose 1 to 5 point in every question [3]. The final question is about quality of life. The symptom score ≤7, 8–19, ≥20 are classifed as mild, moderate and severe symptoms. But, most patients with a low education level can not answer the IPSS questionnaire correctly, eyesight related and cognitive problems are negative factors after the age of 50 years [6]. The patients usually ask questions the health workers for the explanation of the question because of its complexity [3]. To overcome the problems, a new symptom score that called VPSS was developed by Walt et al using 4 pictograms [5]. The advantages of VPSS are simpler and easier to understand for elderly men than IPSS [3]. The pictograms represent frequency, nocturia, weak stream and quality of life.

The authors investigated the correlation between VPSS and IPSS, found that 91.3% and 77.9% (p<0.05) of the patients completed the VPSS and IPSS respectively [7]. In another study from Indonesia, the authors reported that VPSS was completed much more than IPSS [3]. Taneja et al, found that 89 patients(80.9%) completed VPSS but only 48 patients(43.63%) could completed the IPSS [6]. The education level of the patients; 54.5% was Grade 9. The authors from Turkey reported the complete answering rate of IPSS and VPSS was 87.1–97.6% [8]. In study design, they gave the questionnaires to the patients and they filled the forms in home without time restriction. Maybe they completed the forms with assistance, because the answer rate was higher than the literature. Ceylan et al, reported the complete answering the IPSS and VPSS without help was 44.5 and 84.3% respectively [9] In the present study, 30 patients fully completed (44.4%), partial complete rate was 44.4% , 15 patients (18.5%) had no answer for the IPSS form. The answering the IPSS was 81.5% which is similar in the literature, but only 44.4% of the patients fully completed answering all of the questions.The IPSS which is the most preferable method for to evaluate the LUTS in men, was translated into several languages but still needs validation studies [9]. There are limitations to use IPSS in patients with limited education and illiterate [10]. Additionaly the elderly men have difficulties to read small print when answering the questiones [9]. The other disadvantages are lack of to evaluate the incontinence, pain and macroscopic hematuria. The VPSS gives objective measurement for LUTS especially in men with low education level [9]. Because this symptom scorre includes 4 pictograms that are easily unserstandable [3]. We could not afford this finding in the current study; only 9.8% of the patients fully completed the questiones and most of the patients (58%) could not understand the pictograms of VPSS. The writing explanation may be alternative for VPSS that increases the complete answering rate.

The limitations of the current study are small patient group from one single center. The other limitaion of the study is the education level of the patients. The education level can not be similar in the population

In conclusion, we think that there are some problems to understand for IPSS and VPSS for Turkish patients. New and easily understandable questions must be preperad for using national language to understand well.

About the Authors

Correspondence: Selahattin Çalışkan – Atakent Mah. 1.Sk. No:46. 34303 Küçükcekmece. İstanbul, Turkey; e-mail: dr.selahattincaliskan@gmail.com

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