Table 1.

Study schedule

Assessment no		1	2	3	4	5
Assessment timing		Day −90 to 0 before surgery	Day 1 after surgery on ward	Day 2 after surgery on ward	Day 3 after surgery on ward	Day 30 after surgery +30 days to allow time to review postoperative investigations and supporting information
Clinical history	Assessment
	Eligibility criteria	X
	Informed consent	X
	Demographics	X
	Past medical history	X
	Height	X
	Weight	X
	Surgery type	X
Laboratory tests
	Haemoglobin	X
	Serum creatinine	X
	BNP	X
	Point-of-care NT-pro-BNP	X
	hsTnI		X	X	X
Clinical outcomes
	Death					X
	Vascular death					X
	MINS (including MI and isolated-ischaemic troponin elevation)					X
	Stroke					X
	Cardiac arrest					X
	Major bleed					X
	Congestive heart failure					X
	Coronary artery revascularisation					X
	Pulmonary embolus					X
	Pneumonia					X
	Sepsis					X
	New atrial fibrillation					X

BNP, B-type natriuretic peptide; hsTnI, high sensitivity troponin I; MI, myocardial infarction; MINS, myocardial injury after non-cardiac surgery; NT-pro-BNP, N-terminal pro-BNP.