Psychologische impact van screening op en vroege behandeling van diabetes type 2
02 / 1999 - 05 / 2004
[OBJECTIVES:] To study the short and long-term psychological effects of screening for type 2 diabetes in the elderly general population, on subjects who have been diagnosed with type 2 diabetes and subjects who have not been diagnosed with type 2 diabetes; to test for possible differences in psychological impact between screening and 'spontaneous' case-finding in general practice; to study the predictive value of patient-related variables with regard to the psychological impact of screening. [METHODS:] This study is being carried out within the framework of an ongoing screening study in the general population of Hoorn, in a semi-rural region of the Netherlands. First a qualitative study was conducted to explore the psychological impact of screening. At different stages during the screening procedure, questionnaires will be administered to monitor emotional well-being, distress and health behaviour. Potential predictors of psychological outcome included in this study are: risk-perception, perceived severity of diabetes, attitude towards screening, optimism, and locus of control regarding diabetes onset. During the screening procedure, brief assessments will be made at three points in time. Following the outcome of screening (positive/negative), changes in psychological status will be evaluated at 6 and 12 months. For the purpose of comparison, assessments will be made of three groups: (a) those screened and diagnosed with type 2 diabetes, (b) those screened and not diagnosed with type 2 diabetes, and (c) those diagnosed with type 2 diabetes by the general practitioner. [RESULTS:] The qualitative study, using semi-structured interviews was performed in 20 subjects who were screened and diagnosed with diagbetes, and 20 subjects who were screened but did not have diabetes. It was concluded that the psychological impact of screening in newly diagnosed subjects is limited. Both groups were positive about the screening procedure. At present, quantitative data from the screening study are being analysed.