Table 2.

Mean health resource utilization for cases (matched patients with new cardiovascular events) and controls (matched patients without new cardiovascular events)

	History of major CVD cohort			CHD risk equivalent cohort			Low/unknown risk cohort
	Mean HRU (SD)			Mean HRU (SD)			Mean HRU (SD)
	n	Cases	Controls	n	Cases	Controls	n	Cases	Controls
Hospitalization (days)
365–1 days before new CV event	6881	1.37 (5.76)	0.91 (4.94)	3226	0.32(2.29)	0.16 (1.69)	2497	0.34 (2.62)	0.13 (1.69)
0–365 days after new CV event	6881	9.70 (11.20)	0.17 (2.43)	3226	9.64 (11.91)	0.07 (1.20)	2497	8.85 (11.15)	0.03 (0.54)
366–730 days after new CV event	6251	1.92 (7.91)	0.14 (1.60)	2995	1.84 (7.57)	0.08 (1.18)	2331	1.15 (5.01)	0.10 (1.49)
731–1095 days after new CV event	4987	1.62 (6.33)	0.32 (2.84)	2465	1.36 (5.50)	0.34 (3.64)	2031	1.06 (5.10)	0.18 (1.76)
Outpatient (visits)
365–1 days before new CV event	6881	0.12 (0.54)	0.06 (0.38)	3226	0.09 (0.39)	0.04 (0.55)	2497	0.10 (0.45)	0.03 (0.25)
0–365 days after new CV event	6881	0.22 (0.78)	0.03 (0.23)	3226	0.28 (1.15)	0.02 (0.16)	2497	0.27 (0.68)	0.01 (0.16)
366–730 days after new CV event	6251	0.13 (0.54)	0.03 (0.22)	2995	0.14 (0.57)	0.02 (0.15)	2331	0.18 (1.67)	0.02 (0.16)
731–1095 days after new CV event	4987	0.09 (0.42)	0.03 (0.36)	2465	0.11 (0.45)	0.02 (0.17)	2031	0.10 (0.44)	0.02 (0.17)
Primary care (contacts)
365–1 days before new CV event	6881	2.19 (4.19)	1.88 (3.61)	3226	2.65 (4.64)	2.21 (3.97)	2497	1.85 (3.95)	1.47 (3.09)
0–365 days after new CV event	6881	1.93 (4.15)	1.50 (3.37)	3226	2.44 (4.57)	1.86 (3.42)	2497	1.87 (3.97)	1.30 (2.91)
366–730 days after new CV event	6251	1.91 (4.03)	1.66 (3.44)	2995	2.30 (4.44)	2.15 (3.77)	2331	1.79 (4.00)	1.46 (3.22)
731–1095 days after new CV event	4987	1.78 (3.97)	1.57 (3.41)	2465	2.20 (4.68)	2.01 (3.63)	2031	1.66 (3.86)	1.34 (2.98)