Objective: To systematically analyze the correlation between psoriasis and erectile dysfunction (ED). METHODS: We searched the Cochrane Library, EMbase, PubMed, OVID, Medline, VIP, WanFang, China National Knowledge Infrastructure (CNKI), and Chinese Biomedical Literature Database (CBM via SinoMed) for the published literature about the relationship between psoriasis and ED up to June 2016. According to inclusion and exclusion criteria, two researchers respectively extracted the relevant data and made a meta-analysis on the correlation of psoriasis with ED and IIEF-5 scores using the Review Manager 5.3 software. RESULTS: A total of 6 studies were included in this analysis. The analysis with the fixed-effects model revealed a significant correlation between psoriasis and ED (OR = 1.92, 95% CI: 1.53－2.40, P <0.01), and that on 3 of the studies with the random-effects model showed that the IIEF-5 scores were significantly lower in psoriasis patients than in non-psoriasis males (MD = －3.11, 95% CI: －4.85－－1.37, P <0.01). CONCLUSIONS There is a certain correlation between psoriasis and ED. Psoriasis patients may have a higher incidence of ED though it is to be further confirmed by more higher-quality studies.
Erectile Dysfunction ; complications ; epidemiology ; Humans ; Male ; Psoriasis ; complications ; epidemiology

PURPOSE: A low quality clinical trial could produce errors, and these errors could, in turn, distort the results of the clinical trial. To avoid applying distorted results of trials clinically, a quality analysis of clinical trials is needed. MATERIALS AND METHODS: We selected randomized controlled trials (RCTs) about erectile dysfunction (ED) conducted in Korea using Medline and KoreaMed. Quality assessment of selected RCTs was performed using three assessment tools (Jadad scales, van Tulder scale, Cochrane Collaboration Risk of Bias Tool [CCRBT]). RESULTS: The first RCT about ED conducted in Korea was published in 2002. Since 2002, a total of 20 RCTs have been published in medical journals. Among the 20 articles, only 1 article was found to have a low risk of bias according to the CCRBT. On the Jadad scale, there were 17 high quality articles, while 19 articles were assessed as high quality by the VTS. Only 2 RCTs described the randomization method adequately. Only 1 RCT presented allocation concealment. CONCLUSIONS: A low quality clinical trial could produce errors, and these errors could, in turn, distort the results of the clinical trial. To avoid applying distorted results of trials clinically, a quality analysis of clinical trials is needed. The quality of RCTs was found to be high because almost all of the selected RCTs were double blinded studies. However, the quality of RCTs was inadequate with regard to the lack of randomization and absence of allocation concealment. Therefore, performing adequate randomization and adding a description of the appropriate concealment of allocation may improve the quality of RCTs.
Bias (Epidemiology) ; Erectile Dysfunction ; Korea ; Male ; Random Allocation

Hyperlipidemia is one of the risk factors leading to erectile dysfunction (ED), a common disorder in men, especially in old men. Epidemiological studies have found that the decrease in high density lipoprotein (HDL) and elevation of total cholesterol/high density lipoprotein (TC/HDL) are correlated with ED. Studies have also shown that arterial stenosis and occlusion caused by hyperlipidemia could be attributed to the advanced-stage mechanism of ED induced by hyperlipidemia. Hyperlipidemia may damage man's erectile function at an early stage by affecting the endothelial cells and smooth muscles of the penis and the peripheral nerves for penile erection. Apart from dietary therapy and drug therapy aiming at hyperlipidemia, the traditional Chinese medicine therapy and gene therapy are two promising approaches to the treatment of ED caused by hyperlipidemia.
Aged ; Erectile Dysfunction ; epidemiology ; etiology ; therapy ; Humans ; Hyperlipidemias ; complications ; epidemiology ; therapy ; Male

Erectile dysfunction is common complication of diabetes mellitus. The incidence of diabetes mellitus induced erectile dysfunction (DMED) is 20% - 75%. DMED appears to be due to vascular-neuropathic and corpus cavernosum smooth muscular damage. To control blood glucose, blood pressure and blood lipids is the basis of DMED therapy. In 50% of the patients with DMED, the phosphodiesterase 5 inhibitors is effective, while intracavernous pharmacotherapy is effective for more than 90%. Penile prosthesis implantation continues to be the treatment of choice in case of other therapy failure.
Animals ; Diabetes Complications ; epidemiology ; Diabetes Mellitus, Type 2 ; epidemiology ; Erectile Dysfunction ; epidemiology ; pathology ; therapy ; Humans ; Male ; Rabbits ; Rats

Humans ; Male ; COVID-19/epidemiology* ; East Asian People ; Erectile Dysfunction/epidemiology* ; Pandemics ; Penile Erection ; Prostatitis/epidemiology* ; Sickness Impact Profile

OBJECTIVETo investigate the prevalence of erectile dysfunction (ED) in men with high-normal blood pressure (HNBP).

METHODSThis study included 120 men with HNBP and another 120 with normal blood pressure (NBP) as controls. We analyzed the scores of the two groups on the International Index of Erectile Dysfunction 5 (IIEF-5).

RESULTSThe ED prevalence in the men with HNBP was 25.8%. After controlling for age, nationality, occupation, education, income, smoking, alcohol consumption, exercise, obesity, fatty liver, blood lipids, blood glucose, and blood uric acid, the incidence of ED was 25.8% in the HNBP group, significantly higher than 14.2% in the NBP group (P<0.05).

CONCLUSIONThe prevalence of ED is higher in men with HNBP than in those with NBP.

Adult ; Blood Pressure ; Erectile Dysfunction ; epidemiology ; Humans ; Incidence ; Male ; Middle Aged ; Prevalence ; Risk Factors ; Surveys and Questionnaires

BACKGROUNDErectile dysfunction (ED) is a common impairment among older men, and the prevalence rates increase sharply after age of 60 years. Most studies have focused on the prevalence rate or dangerous factors. The aim of this study was to investigate the basic epidemiologic data about ED patients with different ED courses. The purpose of this research was to understand the therapeutic effect of phosphodiesterase type 5 inhibitor (PDE5-I) and see how and why the ED course impact the progress of ED and the therapeutic effect of PDE5-I treatment.

METHODSFrom June 2008 to June 2009, 4252 questionnaires (Quality of Erection Questionnaire, QEQ) were gathered from 46 centers by urology or andrology doctors all around China. Patients with ED (age ≥ 20 years) filled in first half of the questionnaires when they came for the first time, and then completed the second half 4 weeks after PDE5-I therapy.

RESULTSED courses of most patients were less than 5 years (< 5 years, 74.0%; 5 - 10 years 20.8%; > 10 years, 5.2%). As ED course increasing, the incidence of the risk factors of ED, such as smoking, drinking, hypertension, diabetes, heart disease and hyperlipidemia also increase (P ≤ 0.01). PDE5-I was effective in improving the quality of sexual activities (P ≤ 0.01). Administration of PDE5-I improves satisfaction, enjoyment and frequency of sexual activities. The longer the ED course, the worse the therapeutic effect (< 5 years, 96.1%; 5 - 10 years, 94.9%; > 10 years, 89.0%) (P ≤ 0.01).

CONCLUSIONSThe ED course greatly affected the therapeutic effect of PDE5-1, the patients with ED should consult doctor at early stage of the disease. Administration of PDE5-I effectively improves the penile erection and the quality of sexual life of the patients hence should be considered as first-line medicine in the treatment of ED.

Adult ; Erectile Dysfunction ; drug therapy ; epidemiology ; physiopathology ; Humans ; Male ; Phosphodiesterase 5 Inhibitors ; therapeutic use ; Surveys and Questionnaires

OBJECTIVETo investigate the influence of chronic prostatitis on premature ejaculation (PE) and erectile dysfunction (ED) and the correlation of chronic prostatitis with PE and ED.

METHODSWe adopted NIH-CPSI, CISFPE and IIEF-5, interviewed 623 patients with chronic prostatitis, and recorded their scores on the above systems.

RESULTSThe incidence of PE was 39.0% and the rates of the mild, moderate and severe types were 26.2%, 12.0% and 0.8%, respectively. It developed mostly among the younger patients, accounting for 42.9% (103/240), 37.0% (95/257) and 35.7% (45/126) in the 18-30, 30-40 and 40-57 yr age groups, respectively. The incidence of ED was 16.9% and the rates of the mild, moderate and severe types were 14.9%, 1.0% and 1.0%, respectively. It occurred mostly among the older patients, accounting for 13.8% (33/240), 11.3% (29/257) and 34.1% (43/126) in the 18-30, 30-40 and 40-57 yr age groups, respectively. Analyses revealed no significant correlation among the scores on NIH-CPSI, CISFPE and IIEF-5.

CONCLUSIONThere is a high incidence of PE and ED among patients with chronic prostatitis, but without significant correlation between the severity of chronic prostatitis and that of PE and ED.

Adolescent ; Adult ; Chronic Disease ; Erectile Dysfunction ; epidemiology ; Humans ; Incidence ; Male ; Middle Aged ; Prostatitis ; epidemiology ; physiopathology ; Sexual Dysfunction, Physiological ; epidemiology ; Surveys and Questionnaires

OBJECTIVETo investigate and compare the prevalence of erectile dysfunction, hyposexuality and ejaculation disorder among middle-aged and older males in the urban and suburban areas of Beijing.

METHODSUsing the random sampling method, we selected 1 656 men aged > or = 50 years from 15 communities in Beijing. We recorded their scores on the International Index of Erectile Function-5 (IIEF-5) and Brief Male Sexual Function Inventory for Urology (O'Leary 1995), and analyzed the obtained data using SPSS 17.0.

RESULTSTotally, 1 644 of the subjects were qualified for the study, 1 244 from the urban area and the other 400 from the suburbs. The median scores on IIEF-5, sexual desire and ejaculation were 5, 2 and 4 in the urban males as compared with 13, 2 and 5 in the suburban men, with statistically significant differences between the two groups (P < 0.01). The IIEF-5 score was significantly correlated with age, diabetes, cardio-cerebrovascular diseases, drinking and administration of 5alpha-reductase inhibitor in both the urban and suburban groups (P < 0.01).

CONCLUSIONThe sexual function of the middle-aged and older males is better in the suburbs than in the urban area of Beijing. The main reasons might be the lower incidences of diabetes and cardio-cerebrovascular diseases, moderate drinking and less use of 5alpha-reductase inhibitor among the suburban men.

Aged ; China ; epidemiology ; Erectile Dysfunction ; epidemiology ; Humans ; Libido ; Male ; Middle Aged ; Suburban Population ; Surveys and Questionnaires ; Urban Population

OBJECTIVETo investigate the prevalence and characteristics of sexual dysfunction in patients with chronic prostatitis (CP) in the high altitude area.

METHODSA total of 637 CP patients randomly recruited from different urologic clinics were divided into 4 groups according to their living altitudes. The subjects were scored on the National Institute of the Health Chronic Prostatitis Symptom Index (NIH-CPSI), the International Index of Erectile Function-5 (IIEF-5), the Chinese Index of Sexual Function for Premature Ejaculation (C-ISFPE) and the questionnaire on ejaculatory difficulties from the University of Washington Symptom Score.

RESULTSIn the 637 CP patients, the overall incidences of premature ejaculation (PE), erectile dysfunction (ED) and difficult ejaculation (DE) were 28.4%, 17.6% and 23.9%, respectively, 9.9% with PE, ED and DE simultaneously. With the increase of the living altitude, the scores on IIEF-5 (P = 0.032) and C-ISFPE (P = 0. 047) were obviously decreased, and the incidences of PE (P = 0.047), ED (P = 0.046) and DE (P = 0.019) markedly elevated. Those with PE or ED experienced worse symptoms at a higher altitude (r = 0.249 or 0.267, P < 0.05). The differences were all statistically significant.

CONCLUSIONThe prevalence and severity of sexual dysfunction are positively correlated with the living altitude among CP patients.

Adult ; Altitude ; Chronic Disease ; Erectile Dysfunction ; epidemiology ; etiology ; Humans ; Male ; Middle Aged ; Prevalence ; Prostatitis ; complications ; epidemiology ; Surveys and Questionnaires