The impact of different time frames of risk communication on Type 2 diabetes patients' understanding and memory for risk of coronary heart disease and stroke.

AIMS: We examined the impact of communicating risk of coronary heart disease (CHD) and stroke, using three time frames (1, 5 or 10 years), on Type 2 diabetic (T2D) patients' understanding of risk of CHD/stroke and their memory for these risks. METHODS: Patients (N = 95) estimated their risk of developing CHD/having a stroke as a result of diabetes, in one of three time frames. Using the United Kingdom Prospective Diabetes Study Risk Engine and the same time frame, patients were then given individualized, objective risk estimates of developing CHD/stroke. Following explanation of these risks, patients' risk understanding was examined by asking them to report again their risk of developing CHD/stroke. Six weeks later we assessed patient memory for these risks by asking them to recall their actual risk estimates for CHD/stroke. RESULTS: In all time frames, we successfully reduced participants' originally inflated risk perceptions of CHD (F(1,92) = 73.01, P < 0.001) and stroke (F(1,91) = 119.05, P < 0.001), although the 10-year risk group was the most resistant to correction for both CHD (F(1,90) = 9.32, P < 0.001) and stroke (F(2,88) = 3.97, P < 0.02). Participants' recall of their stroke risk at 6 weeks regressed towards original, inflated risk perceptions for the 10-year group only (F(4,176) = 4.73, P < 0.001). CONCLUSION: Patients' inflated perceptions of CHD/stroke risk can be easily corrected using shorter (1- or 5-year) risk communication time frames.

Neuropsychological functioning in older people with type 2 diabetes: the effect of controlling for confounding factors.

AIMS AND METHODS: Neuropsychological functioning was examined in a group of 33 older (mean age 62.40 +/- 9.62 years) people with Type 2 diabetes (Group 1) and 33 non-diabetic participants matched with Group 1 on age, sex, premorbid intelligence and presence of hypertension and cardio/cerebrovascular conditions (Group 2). RESULTS: Data statistically corrected for confounding factors obtained from the diabetic group were compared with the matched control group. The results suggested small cognitive deficits in diabetic people's verbal memory and mental flexibility (Logical Memory A and SS7). No differences were seen between the two samples in simple and complex visuomotor attention, sustained complex visual attention, attention efficiency, mental double tracking, implicit memory, and self-reported memory problems. CONCLUSIONS: These findings indicate minimal cognitive impairment in relatively uncomplicated Type 2 diabetes and demonstrate the importance of control and matching for confounding factors.