Table 1

Baseline characteristics of AS-exposed and non-exposed patients

Variable	AS exposure		p Value
Variable	No (n=360)	Yes (n=765)	p Value
Age group			p=0.467
<20	3	4
20–39	6	10
30–39	10	22
40–49	16	33
50–59	41	57
60–69	65	157
70–79	77	170
80–89	94	223
90–99	45	87
≥100	3	2
Sex			p=0.163
Male	168	390
Female	192	375
Charlson Comorbidity Score	1.68 (SD 1.85)	1.74 (SD 1.76)	p=0.61
CURB-65 score	1.82 (SD 1.17)	2.02 (SD 1.13)	p<0.01
CAP criteria			p=0.082
Yes	131	320
No	229	445
Empirical intravenous antibiotics			p<0.01
Yes	284	654
No	76	111
Ward			p<0.001
3GA	152	469
3GC	43	112
3SA	33	61
4GC	69	122
ER	64	0
Day of week			p=0.595
Sunday	40	104
Monday	55	109
Tuesday	57	117
Wednesday	60	104
Thursday	54	122
Friday	50	96
Saturday	44	113
Propensity score	0. 657 (SD 0.100)	0. 691 (SD 0.074)	p<0.001

AS, antimicrobial stewardship; CAP, community-acquired pneumonia; CURB 65, presence of Confusion, elevated Urea, elevated Respiratory rate, low Blood pressure and age ≥65 years; ER, emergency room.