Antibiotic Prescriptions for Upper Respiratory Infection in the Emergency Department: A Population-Based Study

Table 2

Baseline characteristics of the propensity score-matched subcohort.

Variables	Antibiotic group		Control group		𝑃 value
	(𝑛=5733)		(𝑛=5733)
	No.	%	No.	%
Male	2556	45.46	2461	43.77	0.072
Patient age (SD)	45.86	20.45	45.69	20.37	0.648
Socioeconomic status					0.247
Low	2763	49.14	2825	50.24
Moderate	2112	37.56	2105	37.44
High	748	13.3	693	12.32
Smoking status	122	2.13	102	1.78	0.177
Hypertension	1949	34.00	1984	34.61	0.491
CAD	1180	20.58	1141	19.90	0.365
Asthma	1221	21.30	1264	22.05	0.330
COPD	874	15.25	889	15.51	0.700
Diabetes	1111	19.38	1179	20.57	0.112
Charlson Comorbidity Index Score					0.948
0	1438	25.08	1435	25.03
1	1798	31.36	1814	31.64
≥2	2497	43.55	2484	43.33
Total costs (SD)	78.70	75.96	49.67	46.28	<0.001
Unscheduled returns	121	2.11	152	2.65	0.058