The Relationship between Body Mass Index and the Severity of Coronary Artery Disease in Patients Referred for Coronary Angiography

Table 3

Correlates of 1-year cardiac-specific mortality calculated by Cox proportional hazards multiple regression analysis.

	Overall	β	SE	Wald χ^2	value	HR	95% CI
	Age							61.2 ± 10.6	.046	.012	14.646	0.000	1.05	1.02–1.07
DJS
0 (referent category)	3410; (42.2%)			30.545	0.000
2	1595; (19.7%)	.242	.436	.307	0.579	1.27	.54–3.00
4	692; (8.6%)	1.012	.421	5.763	0.016	2.75	1.20–6.28
6	973; (12.0%)	.941	.401	5.513	0.019	2.56	1.17–5.62
8	483; (6.0%)	1.46	.407	12.854	0.000	4.31	1.94–9.57
10	449; (5.6%)	1.245	.432	8.317	0.004	3.47	1.49–8.09
12	198; (6.4%)	1.762	.367	23.023	0.000	5.83	2.84–11.99
BMI category
Normal weight (referent category)	1297; (16.1)			2.72	0.257
Overweight	3072; (38)	−.305	.293	1.083	0.298	.74	.42–1.31
Obese	3710; (45.9)	.100	.284	.126	0.722	1.11	.64–1.92
LV grade
Grade I (referent category)	6778; (84.9)			37.607	0.000
Grade II	823; (10.3)	.239	.320	.559	0.455	1.27	.68–2.38
Grade III	272; (3.4)	1.154	.320	12.987	0.000	3.17	1.69–5.94
Grade IV	114; (1.4)	1.98	.348	32.352	0.000	7.24	3.66–14.33
Hypertension	5234; (64.9%)	.112	.274	.167	0.682	1.12	.65–1.91
Diabetes	342; (36.9%)	.312	.225	1.93	0.165	1.37	.88–2.12
Family history of premature CAD	5076; (63.0%)	−.098	.222	.196	0.658	.91	.59–1.40
CHF	160; (2.0%)	.725	.340	4.56	0.033	2.07	1.06–4.02
PVD	361; (4.5%)	.510	.322	2.512	0.113	1.67	.89–3.13
CVD	457; (5.7%)	−.027	.329	.007	0.935	.97	.51–1.89
COPD	1305; (16.2%)	.275	.247	1.238	0.266	1.32	.81–2.14
Malignancy	352; (4.4)	−1.88	1.01	3.491	0.062	.150	.02–1.10
Renal insufficiency	321; (4.0%)	.466	.448	1.085	0.298	1.59	.66–3.83
CRF	182; (2.3)	.2925	.544	.288	0.591	1.34	.46–3.89
Dialysis	50; (0.6)	.422	.636	.440	0.507	1.53	.44–5.31
Current/former smoker	5551; (69.0%)	.272	.255	1.14	0.286	1.31	.86–1.71

BMI = body mass index; CHF = congestive heart failure; CI = confidence interval; COPD = chronic obstructive pulmonary disease; CRF = chronic renal failure; CVD = cerebrovascular disease; DJS = Duke Jeopardy Score; HR = hazard ratio; LV = left ventricular; PVD = peripheral vascular disease; SE = standard error.