Key Points Question How frequently are adolescent patient portal accounts accessed by guardians? Findings In this cross-sectional study including 3429 adolescent accounts across 3 academic institutions, analysis of portal messages found that more than half of adolescent patient portal accounts with outbound messages were accessed by guardians. The percentage of accessed accounts was greater in children aged 13 to 14 years vs those aged 17 to 18 years. Meaning These findings may be useful in guiding health system approaches to protecting adolescent confidentiality when sharing health data via patient portals.

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Background The 21st Century Cures Act information blocking final rule mandated the immediate and electronic release of health care data in 2020. There is anecdotal concern that a significant amount of information is documented in notes that would breach adolescent confidentiality if released electronically to a guardian. Objectives The purpose of this study was to quantify the prevalence of confidential information, based on California laws, within progress notes for adolescent patients that would be released electronically and assess differences in prevalence across patient demographics. Methods This is a single-center retrospective chart review of outpatient progress notes written between January 1, 2016, and December 31, 2019, at a large suburban academic pediatric network. Notes were labeled into one of three confidential domains by five expert reviewers trained on a rubric defining confidential information for adolescents derived from California state law. Participants included a random sampling of eligible patients aged 12 to 17 years old at the time of note creation. Secondary analysis included prevalence of confidentiality across age, gender, language spoken, and patient race. Results Of 1,200 manually reviewed notes, 255 notes (21.3%) (95% confidence interval: 19–24%) contained confidential information. There was a similar distribution among gender and age and a majority of English speaking (83.9%) and white or Caucasian patients (41.2%) in the cohort. Confidential information was more likely to be found in notes for females (p < 0.05) as well as for English-speaking patients (p < 0.05). Older patients had a higher probability of notes containing confidential information (p < 0.05). Conclusion This study demonstrates that there is a significant risk to breach adolescent confidentiality if historical progress notes are released electronically to proxies without further review or redaction. With increased sharing of health care data, there is a need to protect the privacy of the adolescents and prevent potential breaches of confidentiality.