Table 1

Relative risks (RR) of increased time to recovery from SARS-CoV-2 with 95% CIs estimated from Poisson regression

RR (95% CI)P value
Local transmission (imported case as referent)0.85 (0.78, 0.93)0.000
Age (in 10 years)1.08 (1.04, 1.12)0.000
Male (female as referent)1.02 (0.91, 1.15)0.735
Nationality (Singaporean as referent)
 Western nationalities0.87 (0.72, 1.04)0.131
 South East Asian0.84 (0.68, 1.04)0.118
 Other nationalities1.00 (0.76, 1.30)0.983
Number of days from onset to confirmation0.50 (0.40, 0.63)0.000
Interaction terms
 Age × Number of days from onset to confirmation1.05 (1.01, 1.09)0.016
 Male × Number of days from onset to confirmation1.17 (1.04, 1.33)0.012
 Western nationalities × Number of days from onset to confirmation1.00 (0.77, 1.31)1.000
 South East Asian × Number of days from onset to confirmation1.69 (1.24, 2.29)0.001
 Other nationalities × Number of days from onset to confirmation0.83 (0.57, 1.20)0.320
  • SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.