Table 3

Reasons for prescribing antibiotics distributed by type of surgery

CABG
n=340		CABG+valve
n=85		Valve
n=489		Other surgical procedures
n=58
Cont
n=193		Intv
n=147		Cont
n=49		Intv
n=36		Cont
n=230		Intv
n=259		Cont
n=34		Intv
n=24
Prescribed antibiotic on fifth postoperative day (95% CI)33/17.1%
(12.1 to 23.2)		16/10.4%
(6.4 to 17.1)		9/18.4%
(8.8 to 32.0)		3/8.3%
(1.8 to 22.5)		17/7.4%
(4.4 to 11.6)		11/4.2%
(2 .5 to 7.5)		5/14.7%
(5.0 to 31.1)		0/0%
(0.0 to 14.2)
Airway infection  (95% CI)14/4.7%
(2.2 to 8.1)		2/1.4%
(0.2 to 4.8)		2/4.1%
(0.5 to 14.0)		1/2.8%
(0.1 to 14.5)		8/3.5%
(1.5 to 6.7)		7/2.7%
(1.1 to 5.5)		0/0%
(0 to 10.3)		0/0%
(0.0 to 14.2)
Superficial surgical site infection  (95% CI)13/6.7%
(3.6 to 11.2)		9/7.5%
(3.8 to 13.0)		1/2.0%
(0.1 to 10.9)		1/2.8%
(0.1 to 14.5)		4/1.5%
(0.5 to 4.4)		4/1.5%
(0.4 to 3.9)		1/2.9%
(0.1 to 15.3)		0/0%
(0.0 to 14.2)
Deep surgical site infection (95% CI)5/2.6%
(0.8 to 5.9)		2/1.6%
(0.2 to 5.5)		1/2.0%
(0.1 to 10.9)		0/0%
(0.0 to 9.7)		0/0%
(0.0 to 1.6)		0/0%
(0.0 to 1.4)		0/0%
(0.0 to 10.3)		0/0%
(0.0 to 14.2)
Urinary tract infection (95% CI)1/0.5%
(0.0 to 2.9)		0/0%
(0.0 to 2.5)		1/2.0%
(0.1 to 10.9)		1/2.8%
(0.1 to 14.5)		0/0%
(0.0 to 1.6)		0/0%
(0.0 to 1.4)		0/0%
(0.0 to 10.3)		0/0%
(0.0 to 14.2)
Other infections (95% CI)0/2.1%
(0.6 to 5.2)		3/2.0%
(0.4 to 5.8)		4/8.2%
(2.3 to 19.6)		0/0%
(0.0 to 9.7)		5/2.2%
(0.7 to 5.0)		0/0%
(0.0 to 1.4)		4/0%
(0.0 to 10.3)		1/4.2%
(0.1 to 21.1)

  • Other infections: endocarditis, pericarditis, chronic infection in the hip, no specific focus for infection, increase in infection parameters.

  • CABG, coronary artery bypass graft; Cont, control group; Intv, intervention group (measured as intention to treat).