Threats to measurement validity in self reported data can be overcome.

Threats to measurement validity in self reported data can be overcome.

Validity of self-reported hypertension in Mashhad population: brief report

Background: Researchers and health specialists are increasingly obtaining information on chronic illnesses from self-reports. This study validates self-reports of hypertension, based on a recently fielded survey in Mashhad City, Iran. Methods: In this cross-sectional study, we used the results of 2015 census in Mashhad City, a population based survey of people over the age of 30 (n=300745) to ...

Can self-reported height and weight be relied upon?

AIMS To assess whether self-reported height and weight [and body mass index (BMI)] can be used in workplace health promotion campaigns. METHODS Volunteers were instructed how to measure their weight, height and waist circumference (WC). Self-reported values were compared with direct measurements. Accuracy was assessed using simple (self-report - actual) and percentage difference [(self-report...

[Can heart donation exclusion factors be overcome?].

INTRODUCTION AND OBJECTIVES A shortage of heart donors is limiting the expansion of transplant programs. Our aims were to investigate the impact of different heart donation exclusion factors and to examine ways of increasing the donor pool. PATIENTS AND METHOD We carried out a retrospective descriptive study of individuals donating organs at a university hospital over a ten-year period. Males...

Threats to Validity in Retrospective Studies