Objective

To describe demographic and clinical characteristics of Spanish- and English-speaking visitors to a "Healthy Mood" website.

Methods

An online study intended to prevent depression by teaching users mood management skills recruited participants globally using primarily Google Ads. Those who consented responded to the Patient Health Questionnaire (PHQ-9) and the MDE Screener (Muñoz, 1998) upon entry into the study.

Results

1423 participants consented, 437 English speakers and 986 Spanish speakers. Of the 1271 participants with sufficient depression symptom data, 65% screened positive for a current major depressive episode, 30% were at high risk for onset of a major depressive episode, and 5% were in the low-risk category.

Conclusion

Websites intended to be preventive appear to attract primarily individuals who are currently experiencing enough symptoms to screen positive for a major depressive episode. Only 30% of participants were appropriate for a depression prevention intervention. Therefore, such sites must be ready to encourage those with current depression to obtain professional help as well as ensure that the online self-help interventions are appropriate for participants who could benefit from both preventive and treatment interventions.

Background

Smoking cessation Internet interventions have been shown to be comparable in effectiveness to the nicotine patch. The aim of this study was to develop a Spanish/English smoking cessation web app using input from low-income smokers, and to evaluate modifications to the online intervention in terms of its ability to engage smokers.

Methods

Three versions of a smoking cessation web app were developed and tested. Measures of engagement, such as completion of study registration, utilization of cigarette, mood, and craving trackers, and completion of follow-up assessments, were collected to determine whether changes in the website resulted in increased engagement.

Results

The third version of the website, which featured improved look-and-feel and fewer barriers to engagement, markedly increased tracker engagement from the first two versions. However, follow-up rates remained low across all three versions.

Conclusions

The increase in engagement was attributed to the following modifications: A more inviting landing page with key intervention elements available immediately; an easily accessible dashboard with users' data; and tracking tools that were more user friendly. We conclude that in addition to adequate and functional elements, design principles are key factors in increasing engagement in online interventions.