Effectiveness of the introduction of a Chronic Care Model-based program for type 2 diabetes in Belgium

Table 7 Changes in process indicators°

	% of patients receiving services		Evolution 2003-2006
	2003	2006	P value for the Δ in both regions *	P value for the Δ between both regions**
HbA1c test
Intervention region	65.52	71.25	+5.73 (p < 0.0001)	p = 0.0117 (1)
Control region	68.58	70.60	+2.02 (p = 0.0580)
Total Cholesterol test
Intervention region	72.53	73.33	+0.80 (p = 0.3888)	p = 0.0190 (1)
Control region	74.21	69.14	-2.59 (p = 0.0178)
Statin therapy
Intervention region	27.07	45.15	+18.08 (p < 0.0001)	p = 0.0002 (1)
Control region	25.15	37.54	+12.39 (p < 0.0001)
Micro-albuminuria test
Intervention region	20.57	25.96	+5.39 (p < 0.0001)	p = 0.1325
Control region	15.71	18.34	+2.63 (p = 0.0037)
Influenza vaccination
Intervention region	57.43	58.14	+0.71 (p = 0.4627)	p = 0.0462 (2)
Control region	50.35	53.91	+3.56 (p = 0.0007)
Ophthalmologist visit
Intervention region	34.72	36.10	+1.38 (p = 0.1360)	p = 0.9300
Control region	31.18	32.36	+1.18 (p = 0.2653)

°GEE model; Δ = evolution; *P value for the evolution (2003-2006) in the intervention and control region; **P value for the evolution (2003-2006) between the intervention and control region, (1) significantly greater change in the intervention region (2) significantly greater change in the control region

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