The relationship between depressive symptoms, health service consumption, and prognosis after acute myocardial infarction: a prospective cohort study

Table 2 Baseline Characteristics

	Depressed*	Non-Depressed	P Value
Characteristics	(n = 494)	(n = 1447)
Age, y -- %			0.002
19–49	21	15
50–64	39	34
65–74	20	29
> 74	20	21
Male Sex -- %	63	73	<0.001
Income, Canadian $ -- %			<0.001
Low (<$30,000)	33	24
Intermediate ($30,000 – $59,999)	34	35
High (>$59,999)	33	42
Coronary Risk Factors -- %
Diabetes	29	22	0.001
Hypercholesterolemia	45	39	0.02
Hypertension	49	46	0.33
Smoking	43	39	0.08
Non-cardiac comorbidities -- %
None	6	9	<0.001
1	16	23
2	27	23
3 or more	51	46
Prognostic Indicators -- mean (SD)
GRACE 6-month prognostic index score⌷	11.6 (30.3)	113.6 (28.5)	0.22
DASI Score§	11.2 (8.4)	19.6 (11.8)	<0.001
Processes of Care -- %
Percutaneous transluminal coronary angiography	8	8	0.97
Coronary angioplasty bypass grafting	12	10	0.28
ACE Inhibitor	63	62	0.64
Beta Blocker	68	70	0.44
Statin	55	55	0.89
Nitrate	37	31	0.01

*The depression measure is a depression scale containing 9 items from the Brief Carroll Depression Scale (BCDS)(cut-off score of 5).
⌷Abbreviation: GRACE: Global Registry of Acute Coronary Events scale.
§Abbreviation: DASI: Duke Activity Status Index

ISSN: 1472-6963