Table 1.
Summary description of included studies.
| Study | Description | |
| Effectiveness | ||
|
|
Emery et al [44] | Asymptomatic transmissions among 3711 cruise ship passengers and crew, Japan |
|
|
Grassly et al [45] | Percent reduction in reproduction number (hypothetical sample), United Kingdom |
|
|
Tsou et al [46] | Outbreak containment using 393 COVID-19 cases, Taiwan |
|
|
Mizumoto et al [47] | Asymptomatic cases among 3063 cruise ship passengers, Japan |
|
|
Sasmita et al [48] | Infections using COVID-19 data, Indonesia |
|
|
Moghadas et al [49] | A hypothetical population of 10,000 to measure required isolation and curtail silent transmission, Canada |
|
|
Bracis et al [50] | SARS-CoV-2 transmissions projection using daily COVID-19 cases of King County from March 8-29, United States |
|
|
Pollmann et al [51] | Impact of digital contact tracing (hypothetical sample) |
|
|
Hill et al [52] | Reduction in infections using contact data from 2010, United Kingdom |
|
|
Gorji et al [53] | Reduction in reproduction number (hypothetical sample), Switzerland |
|
|
Alsing et al [54] | Intervention efficacy using commuter data from 2011, United Kingdom |
|
|
Hagan et al [55] | SARS-CoV-2 prevalence among incarcerated persons in 6 jurisdictions, United States |
| Cost-effectiveness | ||
|
|
Paltiel et al [56] | Evaluate clinical and economic performance using a hypothetical cohort of 4990, United States |
| Asymptomatic proportion | ||
|
|
Porru et al [57] | Health surveillance among 5942 staff of a hospital, Italy |
|
|
Nishiura et al [58] | Asymptomatic ratio among 565 passengers, Japan |
|
|
Treibel et al [59] | Asymptomatic carriers among 400 health care staff, United Kingdom |
|
|
Abeysuriya et al [60] | SARS-CoV-2 prevalence among 180 pregnant women, United Kingdom |
|
|
Brown et al [61] | SARS-CoV-2 prevalence among 1152 health care workers in 6 hospitals, United Kingdom |
|
|
Graham et al [62] | Infections, clinical features, and outcome among 464 residents and staff in care homes, United Kingdom |
|
|
Arons et al [63] | Transmission and adequacy of symptom-based screening among 89 residents of a skilled nursing home, United States |
|
|
Jameson et al [64] | Asymptomatic infections among 121 nonsymptomatic health care staff, United States |
|
|
Callaghan et al [65] | Prevention effectiveness and prevalence of SARS-CoV-2 among 46 patients and 171 health care staff, United States |
|
|
Louie et al [66] | Transmission monitoring among 734 persons, United States |
|
|
Gudbjartsson et al [67] | Transmissions among 9199 targeted, 10,797 openly invited, and 2283 randomly sampled persons, Iceland |
|
|
Reid et al [68] | Testing and cases among 5204 health care staff, Canada |
|
|
Lavezzo et al [69] | Population exposure among 2812 residents before and 2343 residents after the lockdown, Italy |
|
|
Kimball et al [70] | The utility of symptom screening among 76 older adults in a skilled nursing home, United States |
|
|
Olalla et al [71] | Asymptomatic cases among 498 health care staff, Spain |
|
|
Guery et al [72] | Infections among 136 nursing care home staff, France |
|
|
Roxby et al [73] | COVID-19 morbidity among 142 staff and residents in a residential community, United States |
|
|
Lytras et al [74] | SARS-CoV-2 prevalence among passengers repatriated from the United Kingdom (n=357), Spain (n=394), and Turkey (n=32) to Greece |
|
|
Hoehl et al [75] | Infections among 125 passengers evacuated to Germany |
|
|
Cao et al [76] | Prevalence among 9,899,828 residents in China |
|
|
Baggett et al [77] | Infections among 408 homeless shelter residents, United States |
|
|
Imbert et al [78] | Infections among 150 homeless shelter residents, United States |