Table 3. Prevalence of comorbidities and substance use among patients with symptoms of pharyngitis.

*Missing values not included when calculating column percentages.

Comorbidity/Substance	All Patients	No Throat Swab	Throat Swab	p-Value
	N (%)*, N = 245	N (%)*, N = 232	N (%)*, N = 13
Diabetes	33 (13.5%)	31 (13.4%)	2 (15.4%)	0.835
COPD	21 (8.6%)	20 (8.6%)	1 (7.7%)	0.907
Asthma	19 (7.8%)	18 (7.8%)	1 (7.7%)	0.993
Bronchitis	15 (6.1%)	15 (6.5%)	0 (0%)	0.725
Smoking	36 (14.7%)	35 (15.1%)	1 (7.7%)	0.464
Alcohol	28 (11.4%)	26 (11.2%)	2 (15.4%)	0.645