Table 2.

Incidence of first occurrence of specified complications within 30 or 90 days of surgery, and time to first occurrence, stratified by presence of relevant diagnostic code in primary or secondary care data. Data are presented as n (%) unless otherwise stated. Median times are in completed days and presented with inter-quartile range.

	Complication
	Pneumonia	Wound infection	Urinary tract infection	New myocardial infarction	New stroke
Number by 90 days	1125 (2.3)	897 (1.8)	1871 (3.7)	145 (0.3)	124 (0.2)
Median time (IQR)	30 (11–61)	19 (11–34)	31 (14–57)	15 (5–45)	35 (11–60.2)
Number by 30 days	564 (1.1)	630 (1.3)	918 (1.8)	99 (0.2)	55 (0.1)