Table 3.

The results of the logistic multilevel models of the prognostic factors for persistent fatigue in the suspected COVID-19 and non-COVID-19 groups for which the interaction term was significant

FactorSuspected COVID-19 group, OR (95% CI) (n = 142)Non-COVID-19 group, OR (95% CI) (n = 109)P-value for interaction term with groupa
Age1.01 (0.98 to 1.04)0.94 (0.90 to 0.99)0.010
Frequency of GP contact
< 13ReferenceReference
≥132.74 (1.20 to 6.24)0.49 (0.10 to 2.36)0.052
Number of medications
<5ReferenceReference
≥53.57 (1.59 to 8.02)0.67 (0.14 to 3.23)0.056
Life events (last 12 months)b1.32 (1.01 to 1.73)0.49 (0.20 to 1.18)0.040
  • a P-value <0.10 was considered a significant interaction.

  • b Data on life events were missing in 38 and 25 in the suspected COVID-19 group and non-COVID-19 group, respectively. CI = confidence interval. OR = odds ratio.