A cost effectiveness study of integrated care in health services delivery: a diabetes program in Australia

Table 1 Comparison of characteristics of type 2 diabetes patients in the SHDGP Diabetes Program and patients included in the model^(a)

Characteristics	All patients at registration	Patients included in the model
		All	5 Year Survivors
		At registration^(c)	At registration	After 5 Years^(d)
Gender (% female)	46.0	51.3	50.0	50.0
Average age at diagnosis (years)	59.2	62.3*	61.1	66.1
Average duration of diabetes (years)	4.1	0.1	0.1	5.1
Average HbA1c	7.4	6.9*	6.9	7.2
Average systolic blood pressure	135.9	135.1	135.1	132.9
Average lipid cholesterol level	5.4	6.1*	6.2	5.1**
Average HDL level cholesterol	1.3	1.2	1.2	1.3
Average BMI	31.1	31.7	31.9	32.0
% current smokers of those with known smoking^(b)	15.0	20.0	21.6	21.6
Number of patients	1,372	80	74	74

Note: (a) There are different numbers of missing values for each characteristic for "All patients". There are 80 observations for all characteristics for patients included in the model.
(b) Smoking changes rarely reported.
(c) Asterisks show significantly different averages between the population and the group of 80 patients included in the modelling
▪ Age at diagnosis: as the patients in the model join the program at diagnosis they have lower average age at registration than the overall population of patients;
▪ Average HbA1c is higher for the population overall as they have a longer duration of diabetes
▪ Lipid cholesterol is lower for the population overall as they have been accessing lipid lowering drugs for longer.
(d) Double asterisk shows the significant differences between the patients included in the model at registration and 5 years later
▪ The only statistically significant difference is improved cholesterol, again almost certainly due to lipid lowering drugs.
Source: HDGP CarDiab database

ISSN: 1472-6963