Score Model | Symptom | b | Points | 95% CI |
---|---|---|---|---|
A priori symptoms | Cough | 2.85 | 6 | 1.41, 4.80 |
Subjective_fever | 1.99 | 4 | 1.21, 2.82 | |
Acute_onset | −0.27 | −1 | −1.02, 0.45 | |
Chills_sweats | 1.24 | 2 | 0.26, 2.29 | |
Myalgia | −0.69 | −1 | −1.85, 0.44 | |
LASSO | Chills_sweats | 1.07 | 2 | 0.13, 2.07 |
Cough | 2.74 | 5 | 1.34, 4.66 | |
Subjective_fever | 1.81 | 4 | 1.09, 2.56 | |
Ebell flu score symptoms | Acute_onset | −0.39 | −1 | −1.13, 0.31 |
Myalgia | −0.70 | −1 | −1.85, 0.43 | |
Chills_sweats | 1.16 | 2 | 0.20, 2.21 | |
Cough:subjective_fever | 2.19 | 4 | 1.46, 2.99 | |
CF (unweighted) | Cough:subjective_fever | 2.17 | 2 | 1.50, 2.88 |
CFA (unweighted) | Cough:subjective_fever:acute_onset | 1.23 | 1 | 0.55, 1.96 |
CFM (unweighted) | Cough:subjective_fever:myalgia | 1.93 | 2 | 1.28, 2.61 |
LASSO variables (unweighted) | Chills_sweats:cough:subjective_fever | 2.05 | 2 | 1.39, 2.75 |
CF (weighted) | Cough | 2.63 | 5 | 1.24, 4.55 |
Subjective_fever | 2.04 | 4 | 1.35, 2.77 | |
CFA (weighted) | Cough | 2.61 | 5 | 1.21, 4.53 |
Subjective_fever | 2.10 | 4 | 1.39, 2.87 | |
Acute_onset | −0.27 | −1 | −1.00, 0.44 | |
CFM (weighted) | Cough | 2.68 | 5 | 1.27, 4.60 |
Subjective_fever | 2.11 | 4 | 1.38, 2.89 | |
Myalgia | −0.30 | −1 | −1.34, 0.75 |
Abbreviations: LASSO, Least Absolute Shrinkage and Selection Operator; CF, presence of cough and fever; CFM, presence of cough, fever, and myalgia; CFA, presence of cough and fever with acute onset of disease.
Notes: All models were fit only to the derivation set. Confidence intervals for the coefficients were calculated using the Wald Method.