WeOPC15 03 Noriyo Kaneko

Information about WeOPC15 03 Noriyo Kaneko

Published on December 23, 2007

Author: abdullah

Source: authorstream.com

Content

Cell phone survey using RDS to investigate MSM's social networks and HIV risk behaviors in Japan :  Cell phone survey using RDS to investigate MSM's social networks and HIV risk behaviors in Japan Noriyo Kaneko. M.P.H.1), Masahiro Yamamoto. M.D. 2), Kyung-Hee Choi. Ph.D. 3), Yasuharu Hidaka. Ph.D. 4), Seiichi Ichikawa. Ph.D. 1) Nagoya City University School of Nursing, 2) Kyushu Medical Center, 3) Center for AIDS Prevention Studies (CAPS) University of California, San Francisco, 4) Kyoto University Introduction:  Introduction Introduction:  Introduction Difficulty in reaching hidden MSM who don’t attend gay venues PC based Internet survey Limitation of survey focusing on individual level: testing behavior, knowledge, condom use Need to focus on social network factors Need to assess gay and MSM in small cities but Limited data Limitation of gay CBO’s manpower Objective:  Objective 1) Develop cell phone survey system using Respondent Driven Sampling (RDS) which enable to reach hidden MSM 2)To clarify recognition of gay CBO activities, sex behavior, social network characteristics, HIV prevention norm among their social network members using the developed cell phone survey system Survey development :  Survey development gay CBO activities Condom outreach, Community newspaper distribution, Community event Survey development and study implementation: collaboration with gay CBO in Hakata city. Hakata City What is RDS?:  What is RDS? Type of chain referral sampling to reach hidden populations Begin with a set of non randomly selected seeds Seeds recruit peers, who recruit peers, etc. Recruits are linked by coupons with unique identifying numbers Similar to snowball sampling, but the number of peers you can recruit is limited 1st wave 2nd wave 3rd wave 4th wave Gay CBO members recruited their gay friends residing in Kyusyu area Slide7:  Receive coupon by e-mail and access to the questionnaire site ↓ Answer the questionnaire ↓ Three E-mail coupons for friends are automatically sent to the respondent from a server.           ↓ Forward each coupon to friend’s cell phone address (up to 3 friends) CBO members Access to the site address by cell phone and answer the online questionnaire          ↓ Three E-mail coupons for friends are automatically sent to the respondent from a server PC.          ↓ Forward each coupon to friend’s cell phone address (up to 3 friends ) 1st wave continue 3rd wave server Cell phone based survey system CBO members Distribute coupon with invitation card to gay friends in Kyusyu area 2nd wave Slide8:  Results: Map of referral waves CBO 1st wave (/86%) 2nd wave (51%) 3rd wave (41%) 4th wave (29%) y0000933 Don’t consent the agreement y0000927 y0000955 y0000949 y0000977 y0000961 y0000999 y0000983 y0001026 y0001004 y0001054 y0001048 y0000911 5th wave (33%) Did not complete the process Top page (10) Consent page (20) Questionnaire start page(25) Questionnaire page(40) Answer questionnaire Answer Answer + refer friends Register self address 1st wave 2nd wave Double answer(same person) Double answer(different person) Results:  Results ■ Duration:October-November in 2006 (1mon) ■ 69 answers ■ Maximum referral wave : 5th wave ■ Participants were categorized into 3 groups according to their position in the referral waves. 1st wave group: 48% 2nd wave group: 35% 3rd -5th wave group:17% Slide10:  *P<0.05、**P<0.01、***P<0.001 Recognition of Gay CBO activities, HIV positive friends Recognition of gay CBO activities Do you have HIV positive friends? Slide11:  Sex experience in the last 6 months Slide12:  Condom use by partner type, condom use intention Personal gay friends network size:  Personal gay friends network size Slide14:  Assumed percentage of consistent condom users among network members, talk about safer sex with network members Summary of results:  Summary of results The developed survey made it possible to collect data of gay and MSMs who are not exposed to gay CBO outreach program and their social network characteristics Longer distance from 1st wave (friends of gay CBO members) in referral wave is associated with lower recognition of local CBO activities, lower condom use intention, fewer participants with HIV positive friends, smaller social network size, and lower condom use and lower frequency of HIV/AIDS related talk with gay friends network members. Challenges and Future directions:  Challenges and Future directions More longer referral wave is needed to satisfy RDS requirement Limitation in cell phone function The amount of message you can display in cell phone display is limited Difficulty in sustaining environment for connecting to internet by mobile phone while answering questionnaire Limitation in the number of Questionnaire items Difficulty in reaching middle-older aged gays

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