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Table 2: Effectiveness of Behavioral Counseling Interventions to Reduce STIs in Adults and Adolescents Based on Randomized, Controlled Trials (Key Question 1)


Study, Year
(Reference)
Study Quality Study Sample Setting Counseling Intervention STI Outcome at Followup*
Adults
Petersen et al., 200714 Fair n = 737; age range, 16-44 y; 0% male PC clinics Pregnancy and STI risk reduction based on motivational interviewing
  IG1: moderate or high—unknown duration; 2 individual sessions
  CG: single-session general health promotion counseling
STI-positive (for chlamydia):
  Total: 1%; NS differences between groups, data not shown
STI-positive (for any other STI by self-report or chart review):
  Total: 8%; NS differences between groups, data not shown
Jemmott et al., 200713 Good n = 564; mean age, 27 y; 0% male PC clinics Culturally tailored, skills-based intervention based on social cognitive behavioral theory
  IG1: high—200 min total; 1 group session
  IG2: low—20 min total; 1 individual session
  CG: matched general health promotion counseling
STI-positive (for gonorrhea, chlamydia, trichomonas), adjusted:
  IG1: 15%
  IG2: 14%
  CG: 27%; P = 0.03 (IG1 and IG2 vs. CG)
Shain et al., 200415; Project SAFE 2 Fair n = 775 (690 in analysis); mean age, 21 y; 0% male STI clinic Culturally tailored ARRM
  IG1 and IG2: high—9 h total; 3 group sessions ± optional support group sessions
  CG: usual care, 15-min counseling
STI-positive (for gonorrhea, chlamydia), adjusted:
  IG1: 15.7%, P = 0.006; OR, 0.51 (95% CI, 0.31-0.83)
  IG2: 15.4%, P = 0.004; OR, 0.50 (CI, 0.31-0.80)
  CG: 26.8%
Shain et al., 199916; Project SAFE Good n = 617 (549 in analysis); mean age, 21 y; 0% male STI clinic Culturally tailored ARRM
  IG: high—9 to 12 h total; 3 group sessions
  CG: usual care, 15-min counseling
STI-positive (for gonorrhea, chlamydia), adjusted:
  IG: 16.8%; P = 0.004; OR, 0.52 (CI, 0.34-0.81)
  CG: 26.9%
Kamb et al., 199817; Project RESPECT Fair n = 5758; median age, 25 y; 57% male STI clinics Enhanced CDC's client-centered HIV prevention counseling model
  IG1: high—200 min total; 4 individual sessions
  IG2: moderate—40 min total; 2 individual sessions
  CG: usual care, 10-min information only
STI-positive (for gonorrhea, chlamydia, syphilis, HIV), adjusted:
  IG1: 11.5%; RR, 0.78 (CI, 0.64-0.94)
  IG2: 12.0%; RR, 0.81 (CI, 0.67-0.98)
  CG1: 14.6%
Boyer et al., 199718 Fair n = 393; age range, 18-35 y; 67% male STI clinic ARRM
  IG: high—4 h total; 4 individual sessions
  CG: usual care, 15-min counseling
STI-positive at 6 mo (for any STI):
  IG: 6.8% (male); 21.8% (female); P = NS
  CG: 7.0% (male); 22% (female)
Carey et al., 200419 Fair n = 408; median age, 36 y; 46% male Psychiatric clinic HIV harm reduction model and motivational techniques
  IG: high—unknown total hours; 10 group sessions
  CG1 and CG2: matched substance abuse counseling or usual care
Self-report (at 6 mo) of new STI diagnosis at 6 mo, adjusted:
  IG: 2%
  CG1: 8%; P = 0.013
  CG2: 5%; P = 0.046
Scholes et al., 200320 Fair n = 1210; mean age, 21 y; 0% male PC clinics Individually tailored self-help printed materials based on multiple social science theories
  IG: low—2 mailings: 12-page booklet and booster newsletter
  CG: usual care, details NR
Self-report (at 6 mo) of STI diagnosis in past 3 mo, adjusted:
  IG: 3.5%; P = 0.93; OR, 0.97 (CI, 0.48-1.96)
  CG: 3.6%
Adolescents
Jemmott et al., 200522 Good n = 682; mean age, 15 y; 0% male PC clinic Culturally tailored, skills-based intervention based on cognitive behavioral theories
  IG1 and IG2: high—250 min total; 1 group session ± skills training
  CG: matched general health promotion counseling
STI-positive (for gonorrhea, chlamydia, trichomonas), adjusted:
  IG1: 10.5%; P = 0.05
  IG2: 14.4%; P = 0.44
  CG: 18.2%
DiClemente et al., 200423 Good n = 522; mean age, 16 y; 0% male PC clinics Culturally tailored social cognitive theory and theory of gender and power; with peer co-facilitators
  IG: high—4 h total; 4 group sessions
  CG: matched nutrition and exercise counseling
STI incidence per 100 person-months (crude) and OR (adjusted):

Chlamydia: IG: 2.1; CG: 2.0
OR, 0.17 (CI, 0.03-0.92)

Gonorrhea:
IG: 0.9; CG: 0.7
OR, 0.14 (CI, 0.01-3.02)

Trichomonas:
IG: 0.9; CG: 1.2
OR, 0.37 (CI, 0.09-1.46)
Kamb et al., 199817; Bolu et al., 200424; Project RESPECT Fair n = 764 (subgroup analysis of 5758); subgroup age < 20 y STI clinics Enhanced CDC's client-centered HIV prevention counseling model
  IG1: high—200 min total; 4 individual sessions
  IG2: moderate—40 min total; 2 individual sessions
  CG: usual care, 10-min information only
STI-positive (for gonorrhea, chlamydia, syphilis, HIV), adjusted:
  IG1: 17.2%; RR, 0.57 (CI, 0.37-0.90)
  IG2: 17.5%; RR, 0.58 (CI, 0.37-0.92)
  CG1: 26.6%
Boekeloo et al., 199921 Fair n = 219; age 12-15 y (mean NR); 50% male PC clinics Physician counseling based on 15-min audiotape risk assessment done in waiting period
  IG: low—unknown total duration; "brief" individual session
  CG: usual care, details NR
Self-report (at 9 mo) of STI (told by physician/nurse):
  IG: 0%; P = NS
  CG: 2.9%
Self-report (at 9 mo) of treatment for STI:
  IG: 1.1%; P = NS
  CG: 5.8%

ARRM = AIDS risk reduction model; CDC = Centers for Disease Control and Prevention; CG = control group; IG = intervention group; NR = not reported; NS = not significant; OR = odds ratio; PC = primary care; RESPECT = Review, Enhance, Situations, Plan, Examine, Challenge, Tell; RR = relative risk; SAFE = Sexual Awareness for Everyone; STI = sexually transmitted infection.

* Or longest follow-up if otherwise specified.

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