Figure 1.
Literature review flow chart.
Results
Overview
We grouped the studies into five major topics based on the
research questions, explicit and implicit aims of the studies, and
related measures addressed. The topics identified included
patient adoption, provider endorsement, health literacy, usability,
and utility (
Table 1
). Of the 120 articles that were reviewed, 66
(55.0%) were non-experimental descriptive, 26 (21.7%) were
qualitative or mixed-methods, 14 (11.7%) were randomized
controlled trials, 10 were pilot studies or case reports (8.3%),
and 4 were cohort studies (3.3%) (
Table 2
). Only 11 articles
explicitly identified a guiding theoretical framework, with the
Chronic Care Model being the most common among them. The
year 2011 was a turning point in the number of published
articles, which coincides with the initiation of CMS EHR
incentives program. The topical areas that showed the greatest
increase in volume were patient adoption and utility (
Table 1
).
See
Multimedia Appendix 1
for a brief description of each article
and the topical areas addressed. The following section describes
each topical area and discusses relevant implications for
research, development, and implementation of patient portals.
http://www.jmir.org/2015/6/e148/J Med Internet Res 2015 | vol. 17 | iss. 6 | e148 |
Irizarry et al
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