JMIR Publications

ABSTRACT

Background:

As mHealth applications proliferate, it is necessary for patients to feel capable and comfortable using devices that run them. However, limited research is available on changes in comfort level before and after the use of an mHealth application.

Objective:

The objective of this study was to determine whether patients with tuberculosis who used an mHealth application called Video Directly Observed Therapy (VDOT) to monitor their anti-tuberculosis treatment became more comfortable using smartphones after the intervention and to identify factors associated with change in comfort.

Methods:

We analyzed data from a longitudinal study assessing the feasibility and acceptability of the VDOT application among patients receiving anti-tuberculosis treatment from public health departments in San Diego, San Francisco, and New York City. Comfort levels on six domains of smartphone use (making phone calls, taking pictures, recording videos, text messaging, internet and email use on the phone) were measured on a 10-point scale (1=very uncomfortable; 10=very comfortable) at the start and end of treatment using VDOT. The main outcomes were change in comfort level on each domain (recoded as binary measures) and an overall change score (sum of individual measures). Linear and logistic regression analyses were performed to assess whether sociodemographics, risk factors and VDOT perceptions were associated with change of comfort measures.

Results:

Among 121 participants with complete data, mean age was 39.8 years (range: 18-87 years), 46.7% were female, and 76.7% were foreign born. The combined comfort level at baseline was high overall (mean=48.8 out of 60.0) and the mean comfort score increased by 1.92 points at follow-up (p=0.07). Statistically significant increases in comfort on individual domains included taking pictures (p=0.02) and recording videos (p=0.002). Females were more likely to have increased comfort in using the internet on the phone compared to males (Odds ratio [OR] =3.03, p=0.04). Also, participants who worked less hours per week were more likely to have increased comfort recording videos (OR=1.03, p=0.06).

Conclusions:

Findings suggest that, despite a high level of comfort using smartphones at baseline, experience using the VDOT application was associated with increased comfort using smartphone features. Additional research involving participants with lower baseline smartphone experience is needed. An implication of these findings is that as patients begin to use mHealth applications for one health condition, they could acquire skills and confidence to more quickly adapt to using mHealth applications for other conditions.