Background Following a 2010-2011 pilot intervention in which a limited sample of primary care doctors offered their patients secure Web-based portal access to their office visit notes, the participating sites expanded OpenNotes to nearly all clinicians in primary care, medical, and surgical specialty practices. Objective The aim of this study was to examine the ongoing experiences and perceptions of patients who read ambulatory visit notes written by a broad range of doctors, nurses, and other clinicians. Methods A total of 3 large US health systems in Boston, Seattle, and rural Pennsylvania conducted a Web-based survey of adult patients who used portal accounts and had at least 1 visit note available in a recent 12-month period. The main outcome measures included patient-reported behaviors and their perceptions concerning benefits versus risks. Results Among 136,815 patients who received invitations, 21.68% (29,656/136,815) responded. Of the 28,782 patient respondents, 62.82% (18,081/28,782) were female, 72.90% (20,982/28,782) were aged 45 years or older, 76.94% (22,146/28,782) were white, and 14.30% (4115/28,782) reported fair or poor health. Among the 22,947 who reported reading 1 or more notes, 3 out of 4 reported reading them for 1 year or longer, half reported reading at least 4 notes, and 37.74% (8588/22,753) shared a note with someone else. Patients rated note reading as very important for helping take care of their health (16,354/22,520, 72.62%), feeling in control of their care (15,726/22,515, 69.85%), and remembering the plan of care (14,821/22,516, 65.82%). Few were very confused (737/22,304, 3.3%) or more worried (1078/22,303, 4.83%) after reading notes. About a third reported being encouraged by their clinicians to read notes and a third told their clinicians they had read them. Less educated, nonwhite, older, and Hispanic patients, and individuals who usually did not speak English at home, were those most likely to report major benefits from note reading. Nearly all respondents (22,593/22,947, 98.46%) thought Web-based access to visit notes a good idea, and 62.38% (13,427/21,525) rated this practice as very important for choosing a future provider. Conclusions In this first large-scale survey of patient experiences with a broad range of clinicians working in practices in which shared notes are well established, patients find note reading very important for their health management and share their notes frequently with others. Patients are rarely troubled by what they read, and those traditionally underserved in the United States report particular benefit. However, fewer than half of clinicians and patients actively address their shared notes during visits. As the practice continues to spread rapidly in the United States and internationally, our findings indicate that OpenNotes brings benefits to patients that largely outweigh the risks.

IMPORTANCE The 21st Century Cures Act of 2016 requires that patients be given electronic access to all the information in their electronic medical records. The regulations for implementation of this law give patients far easier access to information about their care, including the notes their clinicians write. OBJECTIVE To assess clinicians' views and experiences with sharing clinical notes (open notes) with patients.

Background: As many as half of Americans with chronic illness do not take their medications as prescribed, which contributes to poorer health outcomes and up to $300 billion annually in avoidable health care costs (1). As patients increasingly read their visit notes through online portals (www.opennotes.org), reports from primary care practices have suggested that patient access to notes may improve adherence to medications (2). Objective: We examined patients' perceptions of how note reading affects factors related to medication adherence. In addition, we sought to understand their engagement with online medication lists and their willingness to participate in keeping those lists correct and up to date. Methods: In 2017, we did an online survey of patients in the 3 health systems that participated in the original Open-Notes pilot (3). These 3 systems provide patients with online access to clinical notes throughout most of their ambulatory practices. Eligible patients were aged 18 years or older and in the previous 12 months had logged into the portal at least once and had an ambulatory visit note available. We sent the survey to all potential participants between June and October 2017. We offered 50 raffle prizes at each site as an incentive for participation. Results: Of 136 815 patients who received survey invitations, 29 656 (22%) responded (Figure 1). Among the 19 411 LETTERS

BackgroundOpenNotes, a national initiative to share clinicians’ visit notes with patients, can improve patient engagement, but effects on vulnerable populations are not known very well.ObjectiveOur aim is to examine the importance of visit notes to nonwhite and less educated patients.MethodsPatients at an urban academic medical center with an active patient portal account and ≥1 available ambulatory visit note over the prior year were surveyed during June 2016 until September 2016. The survey was designed with patients and families and assessed importance of reading notes (scale 0-10) for (1) understanding health conditions, (2) feeling informed about care, (3) understanding the provider’s thought process, (4) remembering the plan of care, and (5) making decisions about care. We compared the proportion of patients reporting 9-10 (extremely important) for each item stratified by education level, race/ethnicity, and self-reported health. Principal component analysis and correlation measures supported a summary score for the 5 items (Cronbach alpha=.93). We examined factors associated with rating notes as extremely important to engage in care using logistic regression.ResultsOf 24,722 patients, 6913 (27.96%) completed the survey. The majority (6736/6913, 97.44%) read at least one note. Among note readers, 74.0% (727/982) of patients with ≤high school education, 70.7% (130/184) of black patients, and 69.9% (153/219) of Hispanic/Latino patients reported that notes are extremely important to feel informed about their care. The majority of less educated and nonwhite patients reported notes as extremely important to remember the care plan (62.4%, 613/982 ≤high school education; 62.0%, 114/184 black patients; and 61.6%, 135/219 Hispanic/Latino patients) and to make care decisions (62.3%, 612/982; 59.8%, 110/184; and 58.5%, 128/219, respectively, and P<.003 for all comparisons to more educated and white patients, respectively). Among patients with the poorest self-reported health, 65.9% (499/757) found notes extremely important to be informed and to understand the provider. On multivariable modeling, less educated patients were nearly three times as likely to report notes were extremely important to engage in care compared with the most educated patients (odds ratio [OR] 2.9, 95% CI 2.4-3.3). Nonwhite patients were twice as likely to report the same compared with white patients (OR 2.0, 95% CI 1.5-2.7 [black] and OR 2.2, 95% CI 1.6-2.9 [Hispanic/Latino and Asian], P<.001 for each comparison). Healthier patients, women, older patients, and those who read more notes were more likely to find notes extremely important to engage in care.ConclusionsLess educated and nonwhite patients using the portal each assigned higher importance to reading notes for several health behaviors than highly educated and white patients, and may find transparent notes especially valuable for understanding their health and engaging in their care. Facilitating access to notes may improve engagement in health care for some vulnerable populations who ha...