K M King-Shier

Publications (2)3.82 Total impact

• Article: Understanding the influence of urban- or rural-living on cardiac patients' decisions about diet and physical activity: Descriptive decision modeling.

  K M King-Shier, C Mather, P Leblanc
  [show abstract] [hide abstract]
  ABSTRACT: BACKGROUND: It is challenging to assist people to attend to risk factors for coronary artery disease (CAD). There is potential for cultural elements associated with place of residence (i.e., urban- or rural-living) to have an effect on peoples' decision-making about managing CAD risk. AIM: To better understand patient's decision-making processes regarding having a heart-healthy diet and engaging in regular physical activity (major CAD risk factors), and the potential influence of urban- or rural-living. METHODS: Based on a previous series of qualitative interviews with 42 cardiac patients (21 urban-living, 21 rural-living), hierarchical decision-models regarding eating a heart-healthy diet and engaging in regular physical activity were developed, and a survey based on the decision-models generated. The models were then tested for 'fit' with another group of 42 cardiac patients, and were revised to make them more parsimonious. The final models were tested with a novel group of 647 CAD patients from Alberta, Canada (327 urban-living, 320 rural-living). The primary analysis was focused on determining the extent to which patients completing the survey fell in the correct behavioral group. Thereafter individual nodes were examined to determine decision-making constructs that were different between urban- and rural-living patients. RESULTS: When tested, the models had overall accuracy of 93.5% for diet and 97.5% for physical activity. The most salient model nodes that led to differing behavioral outcomes reflected these constructs: perception of control over health; time, effort, or competing priorities; receipt of appropriate information; and appeal of the activity. CONCLUSIONS: This information is potentially useful to assist healthcare providers to: (1) understand patients' decisions regarding their cardiac risk factor modification behavior, and (2) better direct conversations about risk factor modification and educational activities.
  International journal of nursing studies 04/2013; · 1.91 Impact Factor
• Article: Understanding coronary artery disease patients' decisions regarding the use of chelation therapy for coronary artery disease: Descriptive decision modeling.

  K M King-Shier, H Quan, C Mather, M J Verhoef, M L Knutson, W A Ghali
  [show abstract] [hide abstract]
  ABSTRACT: A considerable number of patients receive chelation therapy to treat their coronary artery disease. However, there is no current empirical evidence to support its use. To better understand patient's decision-making processes regarding the use of chelation therapy as a treatment for coronary artery disease. Based on qualitative interviews with 32 coronary artery disease patients, a taxonomy of decision-related issues, hierarchical decision-model, and survey based on the model were developed. The model was then pilot tested with another group of 30 patients and revised accordingly. The final model was tested with another group of 167 patients (27 current users, 72 previous users, and 68 never users of chelation therapy). The primary examination of the model was to determine the degree to which it successfully identified people who fell within each behavioral group. This was done by dividing the total number of successes by the total number of cases on all paths (or questions in the questionnaire). The most important elements in the decision to use or not use chelation therapy were: previous experience with or learning about chelation therapy, openness to alternative treatments, satisfaction with current level of (traditional) care, physician opinion regarding chelation therapy, costs associated with chelation therapy, perceived access to chelation therapy provider, current state of health (good or bad), and wanting to do 'all one can' for heart health. When tested, the ability of the model to predict the appropriate outcome was nearly 93%. The most salient junctures in the model that led participants to different behavioral outcomes were: considering using non-traditional treatments; perceptions regarding potential risks and benefits; cost; and believing that using chelation therapy was 'doing all that they can' to help their heart health. Descriptive decision-modeling is a useful method to depict cardiac patients' decision-making concerning the use of chelation therapy. It can also assist healthcare providers and policy makers in directing interventions and policy aimed at enhancing the use of evidence-based therapies for cardiac patients.
  International journal of nursing studies 04/2012; 49(9):1074-83. · 1.91 Impact Factor