Table 1.

Patient characteristics.

Parameter	All patients		Tertile of admission glucose				p-valuea
	(n=1713)		Highest (n=579)		Lower two (n=1134)
	Value	n	Value	n	Value	n
Male gender	72%	1227	69%	398	73%	829	0.06
Age (years)	63.2±14	1713	65.0±13	579	62.2±14	1134	<0.001
BMI (kg /m2)	26.4±4	899	26.9±5	182	26.2±4	606	0.03
History
Diabetes	17%	288	31%	177	10%	111	<0.001
Hypertension	30%	519	33%	188	29%	331	0.2
Chronic pulmonary disease	8%	143	9%	49	8%	94	0.2
Renal disease	7%	123	6%	37	8%	86	0.03
Prior AMI	21%	366	24%	137	20%	229	0.3
Prior cerebrovascular event	9%	161	9%	54	9%	107	0.1
Prior angina	10%	175	7%	43	12%	132	<0.001
Prior PCI	17%	289	16%	92	17%	197	0.4
Prior CABG	9%	156	9%	54	9%	102	0.2
Peripheral vascular disease	5%	80	5%	30	4%	50	0.7
Prior heart failure	8%	130	6%	33	9%	97	0.001
ICCU stay (days)	0.7 (0.2–1.5)	1713	0.8 (0.2–2.7)	579	1.6 (0.2–1.1)	1134	<0.001
APACHE-2 score	14 (10–21)	1222	16 (12–30)	440	13 (10–18)	782	<0.001
Suspected ACS	69.7%	1075	65.3%	358	72.1%	717	0.005
Final diagnosis							<0.001
Myocardial infarction	44%	761	52%	303	40%	458
Unstable angina	16%	267	8%	45	20%	222
Angina, stable	3%	47	2%	10	3%	37
Cardiac arrest	6%	98	13%	73	2%	25
Heart failure	7%	121	10%	60	5%	61
Arrhythmia	7%	114	5%	29	8%	85
Valvular disease	5%	80	2%	10	6%	70
Procedure	5%	90	4%	21	6%	69
Other	8%	135	5%	28	9%	107
Glucose measurements (n)	3 (1–8)	1713	5 (1–15)	579	2 (1–6)	1134	<0.001
Admission glucose (mmol/l)	7.9 (6.5–10.1)	1713	11.7 (10.0–14.8)	579	6.9 (6.1–7.9)	1134	<0.001
Average glucose (mmol/l)	7.3 (6.7–8.3)	893	7.9 (7.2–9.3)	355	7.1 (6.5–7.4)	538	<0.001

Values are displayed as %, mean±standard deviation (SD) or median (25th–75th percentile).

ACS: acute coronary syndrome; AMI: acute myocardial infarction; APACHE: Acute Physiology and Chronic Health Evaluation; BMI: body mass index; CABG: coronary artery bypass grafting; ICCU: Intensive Cardiac Care Unit; PCI: percutaneous coronary intervention.

^ap value for comparison of highest vs lower two tertiles.