Table 1

Characteristics of the included guidelines58

GuidelineCountry (region)YearCountry income classification*Target populationsOverall quality score
China (MoH)54China2003UMC A1
Dermatology Advisor47Global2017C, P, A, O, H1
DermNet48Global2014C, A2
ECDC56Europe2019A1
eMedicine49Global2020 A1
Ireland HPSC53Ireland2021HIC A1
Medscape51Global2019 A2
NCDC44Nigeria2019LMICC, A, H3
PHE/UKHSA52England2019HICA1
Singapore FETP46Singapore2020HIC A3
Taiwan CDC45Taiwan2009UMCC, P, A, H1
UpToDate50Global2021C, P, A6
US CDC55USA2018HIC A2
WHO18Global2019A1
  • *World bank country income classification 57

  • A, adults; C, children; CDC, Centers for Disease Control; ECDC, European Centres for Disease Control and Prevention; FETP, Singapore Field Epidemiology Training Programme; H, people living with HIV/immunosuppression; HIC, high-income country; HPSC, Health Protection Surveillance Centre; LMIC, lower-middle-income country; MoH, Ministry of Health; NCDC, Nigeria Centre for Disease Control; O, older adults; P, pregnant women; PHE, Public Health England; UKHSA, UK Health Security Agency; UMC, upper-middle-income country.