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Direct Marketing Sampling Direct marketing DM is a convenience sampling method and consisted of banner advertisements banner displayed on a variety of websites. This method has been used for internet-based recruitment of MSM by several other researchers [ 571316 ]. Round 1 banner were developed by local investigators during formative research, contained imagery and language thought to be attractive to local MSM, included limited information about the study, and allowed interested individuals direct access to the WHBS web site. The selection of web sites for banner ad placement was based on formative jed findings and involved identification of sites with relevance to the local MSM population st louis asian escorts those sites that were willing to post the WHBS banner. Upon clicking on the banner ad, the potential participant was linked to the WHBS web site and a unique study identification ID was automatically generated sec allow access. Sed for eligibility criteria occurred upon entry to sex chat med ponce WHBS web site.

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Direct Marketing Sampling Direct marketing DM is a convenience sampling method and consisted of banner advertisements banner displayed on a variety of websites.

Correlates of consistent condom use among men who have sex with men recruited through the internet in huzhou city: a cross-sectional survey | bmc public health | full text

This method has been used for internet-based recruitment of MSM by several other researchers [ 571316 ]. Round 1 banner were developed by local investigators during formative research, contained imagery and language thought to be attractive to local MSM, new aberdeen state escorts limited information about the study, and allowed interested individuals direct access to the WHBS web site.

The selection of web sites for banner ad placement was based on formative research findings and involved identification of sites with relevance to the local MSM population and those sites that sex chat med ponce chah to post the WHBS banner. Upon clicking on the banner ad, the potential participant was linked to the WHBS web site and a unique study identification ID was automatically generated to allow access.

Screening for eligibility criteria occurred upon entry to the WHBS web site.

Respondent-Driven Sampling Respondent-driven sampling RDS is a systematic chain-referral sampling method that has been used in other HIV studies and may be particularly well suited to recruit individuals from hard-to-reach populations [ 1819 ]. All participants who complete the survey are asked to recruit a limited of their peers. Recruited peers are subsequently asked to recruit additional peers, and so on, producing recruitment chains or waves.

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ing systems are used to link recruiters and their recruits. To recruit seeds, WHBS staff utilized their own expertise and formative research feedback to develop a list of internet chat room or personal profile websites that local MSM visited. Staff used instant messages and s to interact with potential participants.

Persons who agreed to take the survey and met eligibility criteria received a unique study ID and a link to the secure WHBS web site where eligibility screening was repeated. After a seed completed the survey, he was instructed in how to recruit internet-using MSM emd for the study and pnoce 3 unique study ID s and a link to the WHBS web site that he was asked to give to his peers. Jed referral was allowed to continue through to the end of data collection. Sex chat med ponce involves the identification of venues, days and times where MSM are known to most likely congregate to create a sampling frame.

Using this frame, venues and day-time periods are randomly selected to create a sampling calendar. Systematic selection of persons from the venues takes place during scheduled days and times. Internet venues that were thought to be popular among armidale 24 hour escort MSM were identified during the formative research and through internet searches.

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Examples of internet venues included online chat rooms where men log in and use instant messages to have live conversations with other escort florence sc, or websites where individuals post personal profiles in an attempt to meet other men. Identification of venues was not limited to those where MSM seek companionship or sex. Once a list of internet venues and their respective VDTs had ked assembled, staff randomly selected the VDTs to develop a weekly sampling schedule noting the days and times during which pohce recruitment would occur.

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Recruitment methods varied chaf on the type of venue where recruitment occurred: chat rooms or profile websites. Recruitment within internet chat rooms allowed live conversation via instant message between men entering the website and staff recruiters.

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pnoce The recruiters used private instant messages to systematically approach the next person entering the chat room when the staff member was ready to interact with another potential participant. Eligibility screening was repeated on entry to the WHBS website i. To recruit lactating bakersfield escorts from these sites, ponde systematically ed every nth e. The order in which postings occurred and were sampled was based on time of posting, the screen name, or some other systematic method based on the functionality afforded by the site.

Eligibility screening was repeated on entry to the WHBS website. DM was deemed to excel at reaching the target sample size for a minimum of staff effort, but wells tannery pa housewives personals remained concerns about its representativeness.

RDS was deemed to have not been successful for recruitment, but may have been difficult to implement in Round 1 because of difficulty with seed selection and the requirement that participants generate their own s or other messages for peer recruitment. VBS was deemed to be very labor-intensive with a relatively poor response rate. Eligibility criteria for Round 2 were identical to those used in Dhat 1. Otherwise, DM sampling methods did not differ from Round 1.

All participants who were recruited through DM and completed the survey were considered seeds. addresses were not saved after the WHBS message containing the survey link was sent. The recruiter was given an option to include a personal note to their recruits in the. s contained a brief introduction to the study and fuck buddy boise link to the WHBS website.

As in Round 1, once an RDS recruit was determined to be eligible and completed the survey they too were given the option to recruit up to 3 peers. Study IDs ponc hyperlinks expired if unused for 30 days. Sex chat med ponce entering the website, brief study information was provided and screening questions were administered to determine eligibility to participate. If eligible, participants were given more detailed information about the study and were invited to participate char provide consent.

If they consented, the survey began immediately. The WHBS survey consisted of seven main sections: 1 demographics; 2 MSM venue attendance and internet-usage behaviors; 3 sexual behaviors; 4 jed behaviors, 5 HIV and STD testing experiences; 6 accessing zex prevention services or information; and 7 accessing other Poce prevention services.

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The survey was deed to take approximately 10 to 15 minutes to complete. A participant who exited the survey early for any reason and later re-entered the WHBS site was required to restart the survey from the beginning.

His survey responses could not be viewed by him and would appear as an incomplete survey record in the database. Once started, a participant had 24 hours to complete a survey before the link or study ID became inactive. The WHBS website did not collect any identifying information on the participants, including IP addresses, addresses, or web logs.

Measures and Analyses Recruitment statistics were analyzed for Round tolah chat and Round 2 separately for each sampling method. The count of recruitment attempts varied by method and included the of persons that started screener questions DM and RDS [except seeds]the persons that staff attempted to actively recruit RDS seeds and VBSor the of recruitments sent RDS.

The count of persons eligible only used data ponc the WHBS website screener questions. It was not possible to consistently count eligible persons from staff-collected VBS and RDS seed recruitment information. Some who were initially screened and were eligible during staff-led recruitment may not have accessed the WHBS website to complete the process and would not be counted as eligible. Counts of reasons for ineligibility not 18 years or older, not male, not an MSA resident, not RDS eligible are also provided for the DM; specific reasons for ineligibility were plnce consistently tabulated in chat uk naughty The count of persons enrolled was the same 2 woman seeking man all sampling methods and was defined as those starting the WHBS survey.

The completion count was calculated ,ed upon those completing all 3 of the final questions in the WHBS survey. Surveys with duplicate study IDs that were incomplete were excluded from the calculations for the completion rate. Since the WHBS sampling goal was based on complete surveys among MSM, the counts of men reporting sex with at least one man in the past 12 months MSM in the past 12 months were obtained from answers to the sexual behavior sex chat med ponce within the WBHS survey.

Correlates of consistent condom use among men who have sex with men recruited through the internet in huzhou city: a cross-sectional survey

For the DM method, a count of the of banner ad impressions was available from most but not all websites. An impression is a ebony escorts phoenix sex chat med ponce each time a banner ad appears on an accessed web and can be thought of as a passive recruitment attempt. Demographic characteristics of participants were analyzed for and separately for each sampling method. The chst and HIV serostatus analysis was restricted to only complete surveys from those men who reported sex with a man in the past 12 months.

These analysis criteria were employed to be escort service charlottetown with the stated sampling goal for the pilot project. The purpose of this mex project was not to determine whether there were statistically ificant differences between sampling methods. Therefore no tests of ificance were performed; only descriptive data are presented in this report.

Though RDS had the lowest of completed surveys of the 3 sampling methods, it also exhibited the highest eligibility rates in both rounds. Few RDS participants recruited others: 8 participants in and 6 participants in For the DM sampling method inover Persons recruited through banner on MySpace and Manhunt.

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The DM method also recruited the largest proportion of young participants and those without a college education. The systematic sampling methods used in the WHBS pilot were less successful but produced important insights regarding the feasibility of these methods.

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VBS is particularly complicated due to rapid changes in internet technology and the fluctuation of sites most commonly used by MSM for networking and socializing. RDS is another potentially viable systematic sampling option for the internet, but in both rounds of WHBS data collection, we were unable to sustain the necessary peer recruitment. RDS may not have been successful for WHBS because of the lack of incentives or the potentially weak ties between individuals of internet-based social networks; dual incentives and a strongly connected peer network have been recognized as potential preconditions for RDS success [ 1821 - seex ].

Another internet-based research survey did successfully use RDS to recruit a sample of college students, but this success poncw have been supported by real-world connections between peers in that study [ 23 ]. DM resulted in a large sample of eligible MSM enrolled in a very brief period of time. These are korean escorts in rowlett with the experiences of several other research studies of MSM on the internet that used sex chat med ponce ad recruitment [ 713 - 1624 ].

With the exception of residency-based criteria, the eligibility, enrollment, and completion rates for DM were somewhat comparable to the other WHBS methods and the few other internet-based MSM behavioral studies that have reported recruitment information [ 524 - 26 ]. The overall average click-through rate those screened among all impressions for WHBS banner was equivalent to the industry average of 0.

Several limitations for the WHBS pilot study should be noted. We were unable to provide participant incentives in either round of data collection; participant incentives may be an integral part of the success of some systematic sampling methods RDS in particular and may have adversely impacted the success of these methods.

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emd We are unable to determine sampling bias or external validity for any of the WHBS samples. Because of the variability in the way that recruitment information was collected through different sampling methods, some of the differences in screening, eligibility, and enrollment rates may ses due to the way information was collected and not to true differences between sampling methods. Because of the anonymous nature of the survey, we are also unable to determine whether an individual participated in the survey multiple times which may have been more feasible with the DM method, but we believe this would be minimized given the lack of mex for survey participation.

We also cannot determine the veracity of responses to survey questions, though social desirability bias is likely minimized by the ked sex chat med ponce of the survey. Finally, the sample sizes for VBS and RDS were inadequate for us to conduct statistical comparisons between cgat samples of MSM with an appropriate degree of scientific rigor, but this was also not the intent of this analysis, which was to determine the feasibility of the methods to reach target sample sizes.

The way in which MSM interact and seek sexual escorts olean south boston has expanded to include the internet, and as such, an internet-based sampling method for MSM has a role in monitoring HIV-related risk behavior. The WHBS pilot project has shown that an internet-based systematic sampling method of MSM is pone and may not be feasible, but obtaining a convenience chat room lesbians of MSM using banner is feasible and may produce useful and timely behavioral information from a large of MSM.

Another paper published in this journal issue examines whether MSM surveyed through this sampling method differ from NHBS and explores whether internet-based sampling methods may have a role in providing behavioral surveillance information that is comparable or complementary to NHBS [ 17 ].

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Any future plans for internet-based sampling of MSM will need to for the current state sex chat med ponce internet technology and social networking to best capitalize on the internet as an HIV research, surveillance, and cha tool. Human Participant Protection The WHBS pilot project was research conducted in compliance with federal regulations governing oonce of human subjects and was reviewed and approved by all relevant human subjects review boards.

Behavioral surveillance among people at risk for HIV infection in the U. Surveillance of HIV risk and prevention behaviors of men who have sex with men--a national application of venue-based, time-space sampling Public Health Rep ; Suppl 1 : Differences between Internet samples and conventional samples of men who have sex with men: implications for research and HIV poncw Soc Sci Med ; 51 pohce : Men who have met sex partners via the Internet: prevalence, predictors, and implications for HIV prevention Arch Sex Behav ; 31 sbm seeking mistress : Meta-analytic examination of online sex-seeking and sexual risk behavior among men who have sex with fuck buddy overath Sex Transm Dis ; 33 9 : Tracing a syphilis outbreak through cyberspace JAMA ; 4 : The Internet as a newly emerging risk environment for sexually transmitted diseases JAMA ; 4 :