BACKGROUND
Patient portals are promising tools to increase patient involvement and empowerment in managing their health. To optimally facilitate patients, laboratory test results should be explained in easy language. Patient characteristics affect the usage of portals and the user satisfaction.
OBJECTIVE
This study aims to assess the effect of patient characteristics (gender, age, education and chronic disease) on the self-efficacy and perceived usability of an online patient portal that communicates diagnostic test results.
METHODS
We used the online-administered eHealth Impact Questionnaire (eHIQ) to explore patients’ attitudes toward the portal. Patients visiting the portal were asked to complete the questionnaire and to answer questions regarding gender, age, education and chronic disease.
The subscale ‘information and presentation’ of the eHIQ assessed the usability of the patient portal and the subscale ‘motivation and confidence to act’ assessed self-efficacy to determine whether patients were motivated to act on the presented information. Age, gender, education and chronic disease were the determinants to analyze the effect on usability and self-efficacy.
RESULTS
The questionnaire was completed by 748 respondents, of 428 (57.2 %) were female, 423 (56.6%) highly educated and 509 (68%) had no chronic disease. The mean age was 58.5 years (SD 16.4). Higher age, high education and asthma/ COPD were significant determinants for decreased usability; respectively, B=-.094, (95% CI (-1,147 to 0.042), P<0.001, B=-2.512 (95% CI -4.791 to -0.232), P=.031 and B =-3.630 (95% CI -6.545 to -0.715), P=.015. High education was also a significant determinant for self-efficacy B=-3.521 (95% CI -6.469 to -0.572, P=.019). Other determinants were not significant.
CONCLUSIONS
This study showed that the usability of the portal decreased with age, if a user was highly educated or had asthma/ COPD. Patients’ motivation and confidence to act on the presented information decreased with age. The results portal is not tailored for different groups. Further research should investigate which factors from a patient perspective are essential to tailor the portal for different groups, and how a result portal can be optimally integrated within the daily practice of a doctor.