Antithrombotic drugs have a minimal effect on intraoperative blood loss during emergency surgery for generalized peritonitis: a nationwide retrospective cohort study in Japan

Table 2 The differences and the ratio of intraoperative blood loss

	AT	Control
Subjects	2864	2864
Intraoperative blood loss (ml)^b	100 (10–349)	70 (10–299)
	Estimate (95% CI)
Adjusted ratio of the intraoperative blood loss^a,b	1.30 (1.16–1.45)

Data are presented as median (interquartile range)
AT antithrombotic drug group, 95% CI 95% confidential interval
^aCompared with non-use of the antithrombotic drugs after adjustment for potential confounding variables
^bStatistically significant

ISSN: 1749-7922