Table 2

Final Logistic Regression Models to Predict the Likelihood of Sinusitis as Defined by 3 Different Diagnostic Reference Standards

Independent Variable	Abnormal CT Finding		Antral Puncture Finding		Positive Bacterial Culture

	β-Coefficient	Score Point	β-Coefficient	Score Point	β-Coefficient	Score Point
Preceding URTI	0.598	2	0.461	1	0.415	1
Preceding sinusitis	−0.824	−2	−0.828	−2	−0.621	−1
Tender maxillary sinusitis (unilateral)	0.584	2	0.470	1	0.746	2
Maxillary toothache	…	…	0.636	1	0.741	2
Purulent nasal discharge	…	…	…	…	0.559	1
Anosmia	0.363	1	…	…	…	…
CRP >15 mg/L	1.602	4	1.467	3	0.754	2
Constant	−0.277	…	−1.087	…	−1.936	…
AUROCC	0.767	…	0.748	…	0.721	…
Hosmer-Lemeshow χ² test	4.74^a	…	10.88^b	…	8.22^c	…

AUROCC = area under the receiver operating characteristic curve; CRP = C-reactive protein; CT = computed tomography; URTI = upper respiratory tract infection.
↵a P =.79.
↵b P =.14.
↵c P =.41.