Prevalence and Impact of Health-Related Internet and Smartphone Use Among Dermatology Patients

Results

Of 1000 patients who were invited to participate in the study, a total of 775 respondents completed the survey, yielding a response rate of 77.5%. The majority of respondents were aged 30 to 60 years (mean age [standard deviation], 44.5 [17.2] years; median age [interquartile range], 44 [29–59] years), female (66.7%), and non-Hispanic white (83.3%)(Table 1). The majority of respondents (88.8%) had completed at least some college. Nearly all respondents had medical insurance (97.8%), but annual household income and insurance co-pay varied considerably. Only 10.8% of respondents traveled more than an hour to our offices.

The majority of respondents had access to home Internet and owned a smartphone (Table 2). Use of the Internet to obtain health-related information in the 3 months prior to presentation was more common among females (77.9% vs 70.1%; P=.03) and respondents younger than 50 years (83.4% vs 62.5%; P<.001); the same was true for dermatology-related infor-mation (females: 43.2% vs 31.0%; P=.003; aged <50 years, 51.6% vs 22.2%; P<.001). The majority of respondents indicated that they use the Internet to obtain health-related information both before and after they see their doctor. Most respondents indicated that they sometimes discuss health-related information found on the Internet with a physician. Smartphone use to obtain health-related information was more common among respondents younger than 50 years versus those who were 50 years or older (55.5% vs 24.1%; P<.001), as was smartphone use to diagnose skin problems (20.0% vs 6.3%; P<.001).

In multivariable analysis, use of the Internet or a smartphone to obtain health-related information was associated with younger age (<50 years) and a higher level of education (both P<.001). Use of the Internet to obtain dermatology-related information (P<.001) and use of a smartphone to help diagnose a skin problem (P=.001) was associated with younger age (<50 years) only. Income, sex, co-pay to see a dermatologist, and travel time to the dermatology office were not associated with use of online resources for general or dermatology-specific health-related information or assistance with diagnosing a skin problem.

Of 204 respondents who indicated that they previously attempted to self-diagnose a skin condition using the Internet, the most commonly researched condition was skin cancer/moles/unknown spots (64.7%), followed by rashes (40.7%), acne (20.6%), cosmetic issues (16.2%), psoriasis (12.7%), dermatitis (3.4%), warts (1.5%), tick bites (1.0%), and lupus (1.0%)(some respondents selected more than one condition). Only 7.0% of respondents indicated that they previously had refrained from visiting a dermatologist based on reassurance from online resources. Compared to the rest of the surveyed population, these respondents were younger (P=.001), but there were no significant differences in sex, highest level of education, household income, or travel time to the dermatology office. The most commonly researched condition among these respondents was acne (12 respondents), and 11 respondents indicated that they had attempted to self-diagnose a mole or potential cancer using online sources.

Of 557 respondents who owned a smartphone, 31.8% reported using at least 1 health-related app (mean number of health apps per respondent, 1.5). Of the apps that respondents used, 45.9% focused on fitness/nutrition, 28.7% provided reference information, 13.4% were a patient portal for receiving information from their electronic medical record, 8.6% provided a health monitoring function, 1.9% served as a diagnostic aid, and 1.5% provided coping assistance and emotional support for individuals with cognitive or emotional conditions; only 1 respondent reported using an app related to dermatology.

All respondents were asked to rate their anticipated degree of worry if the Internet or a smartphone app suggested that a skin lesion was benign versus dangerous on a 5-point scale. Overall, the median worry rating increased from 3 to 5 when information accessed via the Internet or a smartphone app suggested a lesion was dangerous rather than benign. A change in worry of 2 or more points was seen in 36.1% of females and 49.1% of males (P=.002) when information obtained via the Internet indicated a lesion was dangerous and in 47.5% of females and 58.8% of males (P=.006) when a smartphone app indicated that a lesion was dangerous. When information obtained via the Internet indicated a lesion was dangerous, a change in worry of 2 or more points was seen in 41.8% of respondents who were younger than 50 years and in 41.1% of those who were 50 years or older (P=.93). When a smartphone app indicated a lesion was dangerous, a change in worry of 2 or more points was seen in 50.2% of respondents who were younger than 50 years and in 52.2% of those who were 50 years or older (P=.61).