Table 3

Logistic regression analysis

Operator-based interview aloneOperator-based interview plus clinical parameters
OR95% CIP valueOR95% CIP value
Operator-based interview
 Age >74 years0.190.19 to 0.2<0.0010.170.17 to 0.18<0.001
 Male gender0.240.24 to 0.25<0.0010.30.3 to 0.31<0.001
 Close contact67.5463.78 to 71.52<0.00155.2651.84 to 58.91<0.001
 Shortness of breath0.710.69 to .073<0.0010.780.75 to 0.81<0.001
 Fever3.263.16 to 3.35<0.0013.693.57 to 3.82<0.001
 Diarrhoea0.670.62 to 0.71<0.0010.710.67 to 0.77<0.001
 Cough3.353.22 to 3.49<0.0013.23.06 to 3.34<0.001
 Ageusia/Anosmia3.142.74 to 3.59<0.0013.022.62 to 3.48<0.001
 Asthenia/Diffuse pain1.091.05 to 1.13<0.0011.091.05 to 1.14<0.001
 Vomit0.280.27 to 0.3<0.0010.330.31 to 0.35<0.001
Clinical parameters
 EMS call for respiratory disease///1.071.03 to 1.120.002
 Non-alert///0.390.36 to 0.42<0.001
 Altered respiratory quality///0.990.95 to 1.030.595
 Body temperature >38°C///1.221.17 to 1.28<0.001
 Room air SpO2 <94%///2.252.17 to 2.33<0.001
 HR >100 bpm///0.30.29 to 0.31<0.001
 SBP <90 mm Hg///0.640.57 to 0.72<0.001
 DBP <60 mm Hg///0.520.48 to 0.55<0.001
  • DBP, diastolic BP; EMS, emergency medical service; SBP, systolic BP; SpO2, pulse oximeter oxygen saturation.