Development and validation of the self-administered Falun health instrument (SAFHI) using data from health promoted workplaces in Sweden

Abstract

Aim: The aim of this study was to develop and to validate the self-administered Falun health instrument. An additional aim was to test its applicability in measuring people’s lifestyles linked to health. Methods: In 2002, an instrument was constructed containing questions regarding the hazardous use of alcohol, tobacco, unhealthy diets and insufficient physical activity. A pilot study using the instrument was assessed between 2002 and 2006. In Sweden, it was further expanded and tested during the years 2004–2014 among a total of 1295 people. Results: Face validity was evaluated among colleagues and experts for clarity and completeness resulting in minor adjustments of some questions. With the test–retest method, the self-administered Falun health questionnaire showed a positive and high reproducibility and high compliance. Cronbach’s alpha showed a high level of consistency (average 0.86). Factor analysis demonstrated the choice of questions correlated highly to the measured lifestyle. Conclusions: This study showed that the self-administered Falun health questionnaire is a valid and reliable instrument, useful for detecting individuals at risk of developing diseases that are related to individual choice of lifestyle.

Keywords

Health behaviour Health education Health interventions Instrument development Life style Public Health Self-reported health

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