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Cantor A, Dana T, Griffin JC, et al. Screening for Chlamydial and Gonococcal Infections: A Systematic Review Update for the U.S. Preventive Services Task Force [Internet]. Rockville (MD): Agency for Healthcare Research and Quality (US); 2021 Sep. (Evidence Synthesis, No. 206.)

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Screening for Chlamydial and Gonococcal Infections: A Systematic Review Update for the U.S. Preventive Services Task Force [Internet].

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Table 3Studies Evaluating Strategies for Identifying Persons Who Are at Increased Risk for Chlamydial or Gonococcal Infections

Author, yearStrategyInfectionSexStudy designPopulation, NResultsQuality rating
Falasinnu et al., 201462Risk estimation modelGC, CTM, FCross-sectionalAsymptomatic men and women, attending clinic for STI testing; Canada (n=25,393)

Derivation population (n=10,437): AUC=0.75; 95% CI, 0.72 to 0.80

Validation population (n=14,956): AUC=0.64; 95% CI, 0.61 to 0.67

Fair
Falasinnu et al., 201663Risk estimation modelGC, CTM, FCross-sectionalAsymptomatic men and women, attending clinic for STI testing; Canada (n=20,862)

Derivation population (n=10,437):AUC= 0.74 (95% CI 0.70 to 0.77)

Validation population (n=10,425): AUC=0.69 (95% CI 0.67 to 0.71)

Fair
Falasinnu et al., 201664Population guideline vs. guideline + number of risk factors vs. clinical risk scoreaSTIM, FCross-sectionalAsymptomatic men and women, attending clinic for STI testing; Canada (n=35,818)

Guideline (any vs. no risk factors): AUC 0.55 (95% CI 0.54 to 0.56)

Guideline (numbers of risk factors): AUC 0.64 (95% CI 0.63 to 0.66)

Risk score model: AUC 0.73 (95% CI 0.71 to 0.74)

Fair
Grentzer et al., 201566Age vs. age + partner vs. risk-based screeningbGC, CTFCross-sectionalWomen age 14 to 45 years attending clinic for IUD insertion; U.S. (n=5087)

Sensitivity; specificity; NPV; PPV; %

Age: 80.7; 48.1; 98.8; 4.5

Age + partner: 84.7; 44.8; 99.0; 4.5

Risk: 99.3; 7.6; 99.7; 3.2

Fair
Javanbakht et al., 201868Risk estimationGCM, FCase-ControlMen and women age 15 to 29 years reporting giving oral sex to partner of opposite sex in past 90 days; U.S. (n=245)

Risk of pharyngeal gonorrhea:

Number of oral sex partners in 3 months: aOR 5.7; 95% CI 1.3 to 25.6 aOR 5.7; 95% CI 1.3 to 25.6

Presence of concurrent urogenital gonorrhea: aOR 6.2; 95% CI 2.6-14.3

Fair
Lavoue et al., 201469Model to predict infectioncCTFCross-sectionalWomen with surgical abortion and CT test; France (n=652 derivation, n=326 validation)

Sensitivity, %; specificity, %

Cutoff 40: 100; 26.9

Cutoff 60: 83.3; 58.8

Fair
Miller, et al., 200070Compares 9 sets of screening criteriadCTFCross-sectionalWomen in family planning clinics; U.S. (n=4754)

Criteria; AUC (SD); sensitivity, %; specificity, %

CDC: NA, 85, 38

Seattle-1: 0.599 (0.017); 56; 54

Wisconsin: 0.604 (0.023); 50; 66

Ontario: 0.630 (0.017); 76; 41

California-1: 0.633 (0.016); 94; 20

Age ≤ 22: 0.687 (0.014); 77; 51

California-2: 0.701 (0.015); 97; 9

Seattle-3: 0.723 (0.015); 92; 31

Seattle-2: 0.726 (0.014); 84; 51

Fair

Abbreviations: aOR = adjusted odds ratio; AUC = area under the receiver operating characteristic curve; CDC = Centers for Disease Control and Prevention; CI = confidence interval; CT = chlamydia; F = female; GC = gonorrhea; IUD = intrauterine device; M = male; NA = not applicable; NPV = negative predictive value; OR = odds ratio; PID = pelvic inflammatory disease; PPV = positive predictive value; RCT = randomized controlled trial; RR = relative risk; SD = standard deviation; STD = sexually transmitted disease; STI = sexually transmitted infection; U.K. = United Kingdom; U.S. = United States.

a

Population guideline from the Public Health Agency of Canada (any vs. no risk factors including age <30, 2 or more sexual partners, injection drug use, sexual contact with injection drug user, sexual contact with commercial sex workers, previous STD); guideline (numbers of risk factors including age <30, 2 or more sexual partners, injection drug use, sexual contact with injection drug user, sexual contact with commercial sex workers, previous STD); clinical risk score model (age, race/ethnicity [white/nonwhite], number of sexual partners [0, 1-2, 3 or more], previous CT or GC diagnosis [yes/no], condom use [always, not always]; injection drug use [yes/no]).

b

Age-based (≤25 years); age + partner-based (≤25 years + multiple partners); risk-based (≤25 years, multiple partners, history of STI, inconsistent condom use).

c

Model includes: 0 or 1 child (43 points); not using contraception (34 points); gestational age of abortion >10 weeks (23 points). Low-risk of CT infection = 0-40 points; intermediate-risk = 40-60; high-risk = 60-100.

d

Screening criteria listed in publication (Miller, 200069).

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