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The quality-adjusted life year (QALY) is a generic measure of disease burden, including both the quality and the quantity of life lived. [1] [2] It is used in economic evaluation to assess the value of medical interventions. [1] One QALY equates to one year in perfect health. [2] QALY scores range from 1 (perfect health) to 0 (dead). [3]
The Health Utilities Index (HUI) is a rating scale used to measure general health status and health-related quality of life (HRQoL). HUI questionnaires are designed to map onto two classification systems, HUI-2 and HUI-3, capable of measuring 24,000 and 972,000 unique health states, respectively.
Self-rated health, as measured by a questionnaire, attempts to measure health in all its dimensions. In such a questionnaire, participants answer a series of questions which are typically structured using a Likert Scale. The SF-36 questionnaire is an example of tool for self-assessed overall health. The SF-36 questionnaire addresses several ...
A health risk assessment (HRA) is a health questionnaire, used to provide individuals with an evaluation of their health risks and quality of life. [5] Commonly a HRA incorporates three key elements – an extended questionnaire, a risk calculation or score, and some form of feedback, i.e. face-to-face with a health advisor or an automatic online report.
The Quality of Well-Being Scale (QWB) is a general health quality of life questionnaire which measures overall status and well-being over the previous three days in four areas: physical activities, social activities, mobility, and symptom/problem complexes. [1] It consists of 71 items and takes 20 minutes to complete. [2]
EQ-5D is the most widely used health-related quality of life questionnaire in health economic evaluations. [62] EQ-5D can be used to derive a set of values that reflect people's opinions of the relative importance of different health problems. These values can be used to derive QALYs for application in cost-effectiveness and cost-utility ...
Using the Likert scale the response choices are given the values 0, 1, 2, and 3 respectively. [7] [8] When a participant completes the questionnaire the values of their responses are then summed to give a final score between 0 and 180. Using the GHQ scale, the response choices are given values of 0, 0, 1, and 1 respectively.
The Short Form (36) Health Survey is a 36-item, patient-reported survey of patient health. The SF-36 is a measure of health status and an abbreviated variant of it, the SF-6D, is commonly used in health economics as a variable in the quality-adjusted life year calculation to determine the cost-effectiveness of a health treatment.