The European Online Sexual Survey (EOSS): Pan-European Perspectives on the Impact of Premature Ejaculation and Treatment-Seeking Behavior

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available at www.sciencedirect.com journal homepage: www.europeanurology.com The European Online Sexual Survey (EOSS): Pan-European Perspectives on the Impact of Premature Ejaculation and Treatment-Seeking Behavior John Dean * St. Peter s Andrology Centre, 145 Harley Street, London W1G 6BJ, United Kingdom Article info Keywords: Health survey Premature ejaculation Sexual disorder Please visit www.eu-acme.org/ europeanurology to read and answer questions on-line. The EU-ACME credits will then be attributed automatically. Abstract Although premature ejaculation (PE) is estimated to affect approximately 30% of men, it is an underreported and undertreated condition. To better characterize the perspectives of men with PE in Europe, an online Internet survey was conducted in five countries. A total of 2529 men, aged 18 69 yr, self-completed the European Online Sexual Survey (EOSS) questionnaire online. Criteria used to classify men with PE included self-reported ejaculation before penetration or intravaginal ejaculatory latency time (IELT) of <2 min and poor or very poor control over ejaculation and time to climax reported as a problem for the respondent, his partner, or both. Compared with the non-pe group, the PE group reported significantly less sexual activity, a higher level of distress due to PE, and a lower level of sexual satisfaction. In addition, the PE group reported a lower level for their partner s sexual satisfaction compared with reports from the non-pe group. The majority of the PE group thought an increase in their IELT would have a positive impact on their sexual relationship. Motivational factors that would inspire men to seek treatment for PE were reported as high frequency of PE, partner s suggestion, knowledge of a treatment option, and problem finding/keeping a partner. Current use of pharmacologic treatment for PE among respondents was very low, despite the availability of off-label prescriptions for PE. # 2007 European Association of Urology. Published by Elsevier B.V. All rights reserved. * Tel. +44 20 7486 3840; Fax: +44 20 7486 3810. E-mail address: john@sexualmedicine.org. 1. Introduction Premature ejaculation (PE) is an underreported and undertreated condition [1] that is estimated to affect approximately 30% of the male population [2 8]. Moreover, PE may be a problem for as many as two thirds of men at some time in their life [9]. Therefore, the impact of PE on men and on their relationships is an important consideration. Currently, the American Psychiatric Association s Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) criteria, which include the characteristics of shortened intravaginal ejaculatory latency time (IELT), ejaculation before the man wishes it, distress, and interpersonal difficulty related to ejaculatory latency, are the gold standard for diagnosing PE [10,11]. 1569-9056/$ see front matter # 2007 European Association of Urology. Published by Elsevier B.V. All rights reserved. doi:10.1016/j.eursup.2007.04.006

769 Typically, PE, like other common conditions such as gastroesophageal reflux disease, pain, myopia, and erectile dysfunction (ED), is self-reported. Therefore, subjective observations of men with PE are invaluable in understanding the condition and the impact that it has on their emotions and behavior. To investigate current perceptions of PE symptoms and treatment, as well as the effect of PE on men s lives, an Internet survey was conducted in five countries. Men report that embarrassment is a key reason for not speaking with their doctors about PE [12] and is likely to affect the ability of an individual to respond candidly to an interviewer about the same topic. Online sampling is a well-established sampling method that may make it easier for patients to respond honestly to questions assessing patient perceptions about a variety of health concerns. Because participants report their responses anonymously, their answers are more apt to be honest and frank and will not be influenced by the presence of an interviewer. In addition, the high level of motivation required for voluntary participation has been shown to result in more complete data reporting. However, Internet surveys have some drawbacks, particularly sampling error and a limited ability to verify the information provided [13]. The European Online Sexual Survey (EOSS) used an Internet format to inquire about current perceptions and impact of and treatment-seeking behavior for PE in the United Kingdom, Italy, Spain, France, and Germany. 2. Methods 2.1. Participants Eligible respondents were men between 18 and 69 yr of age living in the United Kingdom, Italy, France, Spain, or Germany, and were members of the existing Ciao online panel. Homosexual men, bisexual men, and men between 60 and 69 yr of age were each limited to 5% of the total sample. Only participants who responded to all survey questions were included in the analyses. For the purpose of this survey, men who met the following criteria, which are consistent with themes suggested in the DSM-IV-TR definition [10,14], were assigned to the PE group: 1. Self-reported ejaculation before penetration, or IELT < 2min,and 2. Control over ejaculation reported as poor or very poor on a 5-point scale, and 3. Time to ejaculation reported to be a problem for the respondent, his partner, or both Men who did not meet all three criteria were assigned to the non-pe group. 2.2. Survey methodology Members of the online panel were invited via e-mail to selfcomplete the EOSS questionnaire via the Internet from April through June 2005. No time limit was imposed for completion of the questionnaire. No interviewer was present. Respondents were paid for completing the survey. 2.3. Assessments Variables analyzed included level of sexual activity (number of intercourse events per month), level of distress attributed to PE (very low, low, fair, high, or very high), level of satisfaction with the sexual relationship for the respondent and for his partner as reported by the respondent (very poor, poor, fair, good, very good), anticipated effect that an increase in IELT could have on their sexual relationship (no impact, minor impact, some impact, important impact, dramatic impact), motivational factors that inspire men to seek professional help, and current strategies for coping with PE. The EOSS study had a total of 82 questions, each with multiple selections possible. Assessments of impact and treatment-seeking are presented here. 2.4. Statistical analysis Recruitment was performed according to predefined quotas, but not all participants completed the survey and PE incidence varied by country. Therefore, the responses were weighted on the basis of sociodemographic and epidemiologic factors to match the population of each country. Factors considered included age, social class, urbanization level, and household size. The sample was then reweighed to be representative of the age of the male population in the G5 countries. Results for the population classified as PE group were compared with those for the remainder of respondents, the non-pe group. Betweengroup comparisons were performed using the Wald x 2 test, and differences were considered to be statistically significant if p 0.05. 3. Results 3.1. Population Data were collected from 2529 respondents. For the purpose of this analysis, data from respondents who reported either self-diagnosed ED or symptoms consistent with ED were excluded from both the PE and the non-pe groups. Results were weighted accordingly. The net, weighted PE group thus included 165 men. The net, weighted non-pe group included 2087 men. No men over 60 yr of age completed the survey. Demographic information for the study population is presented in Table 1. 3.2. Sexual activity On average, men in the PE group engaged in fewer acts of sexual intercourse per month compared with

770 Table 1 Patient demographics and baseline characteristics All respondents, % Germany (n = 707) Italy (n = 498) France (n = 489) United Kingdom (n = 486) Spain (n = 349) Total G5 (n = 2529) Age range, yr 18 35 42.9 47.6 49.5 49.8 56.4 48.2 36 45 27.9 25.5 22.9 23.3 24.1 25.0 46 60 29.3 26.9 27.6 27.0 19.5 26.7 Relationship status Involved 86.4 88.7 86.5 88.1 86.2 87.2 Not involved 12.5 10.1 12.8 10.5 13.4 11.8 Neither/not stated 1.0 1.2 0.6 1.4 0.4 1 Sexual identity Heterosexual 90.7 95.4 88.3 90.3 94.3 91.5 Homosexual 4.7 1.8 5.3 5.5 2.6 4.1 Bisexual 4.7 2.8 6.3 4.1 3.2 4.3 Health Poor 1.3 0.8 0.8 3.9 1.7 1.7 Fair 20.3 18.8 13.9 15.4 24.6 18.4 Good 44.8 37.6 42.0 40.0 37.0 40.9 Very good 26.2 29.8 32.7 32.4 25.2 29.3 Excellent 7.5 13.0 10.6 8.2 11.5 9.8 Percentages have been rounded. the non-pe group. The non-pe group reported that they had sexual intercourse approximately nine times per month compared with an average of six times per month for the PE group ( p < 0.0001). 3.3. Distress In response to the question Over the past month, the level of distress that I experience has been..., the vast majority of the PE group (approximately 76%) reported at least a fair level of distress compared with approximately 25% of men in the non-pe group (Fig. 1). 3.4. Satisfaction with the sexual relationship Approximately 85% of the PE group reported a very poor, poor, or fair level of satisfaction with their sexual relationship compared with approximately 32% of the non-pe group (Fig. 2A). In addition to their own low level of satisfaction, PE men reported that their partners experienced a low level of satisfaction with their sexual relationship. Approximately 75% of the PE group reported that their partner experienced a very poor, poor, or fair level of satisfaction with their sexual relationship compared with only 28% of the non-pe group (Fig. 2B). 3.5. IELT Fig. 1 Reported level of distress. PE = premature ejaculation group; non-pe = non-premature ejaculation group. Approximately 84% of the PE group felt that an increase in IELT would have an important or dramatic impact on their sexual relationship (Fig. 3). More than 97% of the PE group felt that increasing their IELT would have at least some positive impact on their sexual relationship. Less than 1% thought that it would have no impact. Men in the non-pe group also believed that an increase in their IELT would have at least some positive impact on their sexual relationship, although the perception was not as strong that the impact would be considered important or dramatic (35%).

771 Fig. 2 Reported level of satisfaction with sexual relationship (A) and reported perceived level of partner satisfaction with sexual relationship (B). PE = premature ejaculation group; non-pe = non-premature ejaculation group. 3.6. Coping with PE and treatment-seeking When asked the question Which, if any, of the following treatments for premature ejaculation do you currently use most often?, mental distraction was the most common coping strategy in the PE group and was reported by 25% of respondents (Fig. 4). Masturbation prior to sexual intercourse ranked second (15%), followed by increased frequency of sexual activity (8%) and alcoholic beverages (7%). Less than 3% of the PE group indicated that they used a phosphodiesterase type 5 (PDE5) inhibitor treatment option for the condition; <1% used a selective serotonin reuptake inhibitor (SSRI) and <2% used anesthetic ointments or creams. Fig. 4 Therapies currently used to treat premature ejaculation. PE = premature ejaculation; SSRI = selective serotonin reuptake inhibitor; PDE5 = phosphodiesterase type 5. Fig. 3 Anticipated impact of increased intravaginal ejaculatory latency time on sexual relationship. PE = premature ejaculation. For men in the surveyed countries, the four most important motivational factors for seeking physician treatment for PE included a high frequency of PE occurrence (89%), suggestion by the partner (70%), knowledge of a pill to treat PE (61%), and problems finding/keeping a partner because of PE (59%). The

772 majority (78%) of the PE group indicated that knowledge of a prescription medication for PE would play an important role in motivating them to look for more information. 3.7. Preferences for PE treatment Participants were asked to review a list of attributes for a theoretical PE treatment and rank them in importance. In the PE group, 44% rated ability to use product as needed as most important, 23% ranked rapid onset as most important, 21% ranked long duration of action as most important, and 13% rated daily administration as the most important attribute listed. 4. Discussion A fulfilling sexual relationship is an integral part of a man s emotional and psychological well-being [15]. A man s lack or loss of the ability to control the timing of ejaculation can deprive a couple of a key aspect of their mutual pleasure. For couples with PE, thoughts of ejaculation control may preoccupy the sexual experience, displacing the focus away from arousal and pleasure [16]. This Internet survey was designed to assess the impact of PE on the lives of men with this disorder and their expectations and motivations for seeking treatment. A considerably smaller percentage (7%) of participants in this survey was classified by the methodology as having PE compared with most other studies (30%) [2 8]. The difference can be explained, at least in part, by the more stringent criteria used to define PE in this study. To be diagnosed with PE in this analysis, men had to report that their IELT was <2 min, rate their control of ejaculation as poor or very poor, and report that PE was a problem for him or his partner or both. With few exceptions [17], other survey studies used self-reported PE or climax too soon as the sole criterion for inclusion in the PE group [2,12,18]. However, men meeting these criteria shared similar views with the broader population of men included in other studies. The present findings show that 76% of men with PE reported high levels of distress due to PE, which are consistent with a prior demonstration that elevated distress in PE is strongly correlated with shorter IELT and lower control over ejaculation [17]. Previous studies have found that sexual satisfaction for both partners correlates with the severity of PE [17,18]. In the EOSS, more men with PE reported that their partners were dissatisfied with their sexual relationship than did men without PE. This awareness of his partner s dissatisfaction with his sexual performance, in turn, may have a further impact on the man s emotional well-being and sexual ability. It should be noted that because assessments of partner satisfaction in this survey were based on patient estimates, they may be subject to errors of patient perception or judgment. However, data from previous studies have demonstrated marked consistency between patient and partner sexual satisfaction [17], further supporting the validity of these assessments. Prior reports have suggested that PE may be associated with a lower level of sexual intimacy [15] and may lead to sexual avoidance [19]. The EOSS results suggest a disparity in sexual activity between the PE and non-pe groups. Indeed, the elevated distress and decreased satisfaction experienced by men with PE were associated with a 33% relative reduction in frequency of sexual intercourse compared with non-pe men. This survey also revealed a disparity within the PE group between desire for increased IELT and actions to increase IELT. Although >97% of the PE group felt that an increase in IELT would have at least some impact on their sexual relationship, only approximately 50% of these men had adopted any strategy to prolong IELT. The most common approach was mental distraction, a conscious effort to divert attention away from climax while engaging in intercourse. Although behavioral techniques such as distraction may produce short-term results, longterm efficacy has been reported to be low [20]. The least frequently reported PE intervention was the use of SSRIs (<1%), despite the fact that their efficacy in prolonging IELT is becoming more widely recognized [21 23] and specialists may prescribe these agents off-label for patients with PE [12,19]. Although according to the men who participated in the EOSS study, on-demand efficacy is the most important characteristic for a treatment of PE, generally SSRIs require daily administration to produce significant IELT prolongation; some SSRIs have on-demand activity only if daily dosing is used initially [22,24]. This survey also provided important insight into the behavioral aspects of European men with regard to their sexual health interactions with health care professionals. Among European men who have sexual problems, an estimated 80% do not seek help from a medical professional [8,25]. Although these men have been reported to consider discussions with their doctors about sexual concerns to be important, most prefer that their physician initiate such conversations [9]. One of the primary reasons

773 that men might not be motivated to discuss PE with their physicians is that they believe there is no treatment [12]. In the online survey, the most common motivating factor for men to discuss PE with their physician was a high frequency of occurrence of PE (89%). Encouragement from the partner (70%) ranked second as a motivational factor. Current strategies for PE therapy arise from both organic and psychogenic perspectives, reflecting limitations in our understanding of the etiology of PE. Pathophysiologic explanations of PE have been speculative at best, ranging from psychosomatic manifestations of anxiety or imprinting from early sexual experience to biologic explanations such as a hyperexcitable ejaculatory reflex or dysfunction of 5-hydroxytryptamine (5-HT) receptors [19,21]. Indeed,SSRIs,whichmodulate5-HT signaling, have demonstrated preliminary efficacy in this setting and may be prescribed off-label to men with PE. The overwhelming desire for change in the PE group suggests that PE has a broad impact on the lives and relationships of European men. This survey therefore confirms and extends the observations that have been reported previously. 5. Conclusion Men with PE reported experiencing a high level of personal distress due to PE, a low level of personal and partner satisfaction with their sexual relationship, and less sexual activity than men without PE. The EOSS showed that most men with PE believe that increasing their IELT would improve their sexual relationship, yet few men had explored pharmaceutical options for PE. This apparent discrepancy may be related to a lack of awareness of pharmaceutical interventions; indeed, although off-label usage of SSRIs has documented efficacy with some associated adverse drug reactions, there is currently no approved pharmaceutical treatment for PE in Europe. The survey also indicated that men with PE would prefer therapies that can be administered on an asneeded ( on-demand ) basis. These findings provide important considerations for the development and implementation of treatment for PE. Conflicts of interest I have received honorarium for speaking at satellite symposia from Janssen-Cilag EMEA and Johnson & Johnson Pharmaceutical Services LLC. I have previously received payments for providing services as a consultant and/or as a speaker from the following companies: Abbott Laboratories, Auxilium, Bayer, Boehringer-Ingleheim, Ferring Pharmaceuticals, GlaxoSmithKline, Ipsen, Eli Lilly and Company Lilly-ICOS, Meda, Pfizer Inc, Plethora Solutions, Procter & Gamble, Sanofi-Synthelabo, Senetek PLC, Schering-Plough. Acknowledgments Janssen-Cilag EMEA and Johnson & Johnson Pharmaceutical Services LLC provided funding for the EOSS study and its analysis/interpretation. References [1] Jannini EA, Lombardo F, Lenzi A. Correlation between ejaculatory and erectile dysfunction. Int J Androl 2005;28(Suppl 2):40 5. [2] Laumann EO, Paik A, Rosen RC. Sexual dysfunction in the United States: prevalence and predictors. JAMA 1999;281: 537 44. [3] Spector KR, Boyle M. The prevalence and perceived aetiology of male sexual problems in a non-clinical sample. Br J Med Psychol 1986;59(pt 4):351 8. [4] Rosen RC. Prevalence and risk factors of sexual dysfunction in men and women. Curr Psychiatry Rep 2000;2:189 95. [5] Carson CC, Glasser DB, Laumann EO, West SL, Rosen RC. Prevalence and correlates of premature ejaculation among men aged 40 years and older: a United States nationwide population-based study. Paper presented at the American Urological Association 98th Annual Meeting, April 26 May 21, 2003, Chicago, IL. [6] Rosen R, Porst H, Montorsi F. The Premature Ejaculation Prevalence and Attitudes (PEPA) survey: a multinational survey. Paper presented at the 11th World Congress of the International Society of Sexual and Impotence Research, October 17 21, 2004, Buenos Aires, Argentina. [7] Lau JT, Wang Q, Cheng Y, Yang X. Prevalence and risk factors of sexual dysfunction among younger married men in a rural area in China. Urology 2005;66:616 22. [8] Moreira Jr ED, Glasser DB, Gingell C, for the GSSAB Investigators Group. Sexual activity, sexual dysfunction and associated help-seeking behaviours in middle-aged and older adults in Spain: a population survey. World J Urol 2005;23:422 9. [9] Aschka C, Himmel W, Ittner E, Kochen MM. Sexual problems of male patients in family practice. J Fam Pract 2001;50:773 8. [10] Grenier G, Byers ES. The relationships among ejaculatory control, ejaculatory latency, and attempts to prolong heterosexual intercourse. Arch Sex Behav 1997;26:27 47. [11] Waldinger MD. Lifelong premature ejaculation: from authority-based to evidence-based medicine. BJU Int 2004;93:201 7.

774 [12] Symonds T, Roblin D, Hart K, Althof S. How does premature ejaculation impact a man s life? J Sex Marital Ther 2003;29:361 70. [13] Wright KB. Researching internet-based populations: advantages and disadvantages of online survey research, online questionnaire authoring software packages, and web survey services. Journal of Computer-Mediated Communication 2005;10, article II. Available at: http:// jcmc.indiana.edu/vol10/issue3/wright.html. [14] American Psychiatric Association. Diagnostic and statistical manual of mental disorders, DSM-IV. Washington, DC: American Psychiatric Association. 2000. [15] McCabe MP. Intimacy and quality of life among sexually dysfunctional men and women. J Sex Marital Ther 1997;23:276 90. [16] Hartmann U, Schedlowski M, Kruger TH. Cognitive and partner-related factors in rapid ejaculation: differences between dysfunctional and functional men. World J Urol 2005;23:93 101. [17] Patrick DL, Althof SE, Pryor JL, et al. Premature ejaculation: an observational study of men and their partners. J Sex Med 2005;2:358 67. [18] Byers ES, Grenier G. Premature or rapid ejaculation: heterosexual couples perceptions of men s ejaculatory behavior. Arch Sex Behav 2003;32:261 70. [19] McMahon CG. Ejaculatory dysfunction. In: Seftel AD, Padma-Nathan H, McMahon CG, editors. Male and female sexual dysfunction. Edinburgh, United Kingdom: Mosby; 2004. [20] De Amicis LA, Goldberg DC, LoPiccolo J, Friedman J, Davies L. Clinical follow-up of couples treated for sexual dysfunction. Arch Sex Behav 1985;14:467 89. [21] McMahon CG, Abdo C, Incrocci L, et al. Disorders of orgasm and ejaculation in men. J Sex Med 2004;1:58 65. [22] McMahon CG, Touma K. Treatment of premature ejaculation with paroxetine hydrochloride as needed: 2 singleblind placebo controlled crossover studies. World J Urol 1999;161:1826 30. [23] Kara H, Aydin S, Yucel M, Agargun MY, Odabas O, Yilmaz Y. The efficacy of fluoxetine in the treatment of premature ejaculation: a double-blind placebo controlled study. J Urol 1996;156:1631 2. [24] Kim SW, Paick JS. Short-term analysis of the effects of as needed use of sertraline at 5 PM for the treatment of premature ejaculation. Urology 1999;54:544 7. [25] Moreira Jr ED, Hartmann U, Glasser DB, Gingell C, for the GSSAB Investigators Group. A population survey of sexual activity, sexual dysfunction and associated help-seeking behavior in middle-aged and older adults in Germany. Eur J Med Res 2005;10:434 43.