Patient Portals and Personal Health Records

Patient portals and personal health records (PHRs) are consumer-facing systems that give patients electronic access to their own health information. A patient portal is typically a secure website tethered to a clinician's or health system's electronic health record, while a personal health record is a record of health information controlled, and sometimes assembled, by the patient. Both aim to support patients in viewing results, communicating with providers, and participating in their care.

Definition

A personal health record is an electronic record of health-related information on an individual that conforms to interoperability standards and can be drawn from multiple sources while being managed, shared, and controlled by the individual; a patient portal is a secure, usually tethered application that gives patients access to a subset of their provider's electronic health record and related services such as messaging and appointment booking.

Scope

This entry covers the definition and types of patient portals and personal health records, the functions they offer, the factors that shape their adoption and use, and the evidence on their effects. It treats portals and PHRs as a topic in consumer health informatics, describing how the technology works rather than recommending specific products or clinical actions.

Core questions

• What functions do patient portals and personal health records provide to patients?
• What distinguishes a tethered patient portal from a standalone or integrated personal health record?
• What drives or hinders patient adoption and sustained use of these systems?
• What is known about their effects on engagement, communication, and outcomes?

Key concepts

• Patient portal (tethered access)
• Personal health record (standalone and integrated)
• Patient access to records and test results
• Secure patient-provider messaging
• Patient-controlled data and consent
• Adoption, usability, and the digital divide
• Interoperability

Mechanisms

Patient portals and PHRs operate by exposing health data, captured primarily in clinical systems, to patients through a secure interface. Tethered portals draw directly on a single provider's electronic health record, so their contents and functions are bounded by that system; standalone or integrated PHRs aim to aggregate information across sources under the patient's control, which raises questions of interoperability, data quality, and consent. Beyond viewing data, common functions include secure messaging, prescription renewal, appointment scheduling, and patient-entered data. Whether these functions translate into engagement depends on usability, trust, and patients' access and digital literacy.

Clinical relevance

Patient portals and personal health records are a primary channel through which patients now view results, message clinicians, and manage appointments, and they are widely promoted as a means of patient engagement. Understanding their types and limitations helps in appraising how care is delivered and documented. This entry is descriptive; it does not advise on configuring or using any particular system for individual care.

Evidence & guidelines

A scoping review of personal health records found a rapidly growing but heterogeneous literature, with many systems offering overlapping functions and adoption shaped by usability, perceived usefulness, and privacy concerns. Systematic analysis of eHealth implementation identifies recurring barriers and facilitators such as technical interoperability, workflow fit, and user acceptance that apply to portals and PHRs. Effects on hard outcomes are mixed and depend heavily on context and the population served.

History

The idea of patient-controlled records predates the Internet, but practical personal health records and patient portals expanded in the 2000s as electronic health records became widespread and policy in several countries encouraged patient access to records. Tethered portals attached to institutional electronic health records became the dominant form, while ambitions for fully patient-controlled, cross-source PHRs proved harder to sustain. Access initiatives such as open-notes movements later broadened what patients could see.

Debates

Tethered portals versus patient-controlled personal health records

Tethered portals are easier to populate with accurate clinical data but confine patients to one provider's system, while patient-controlled PHRs promise a unified, portable record yet struggle with interoperability, data quality, and sustained adoption; which model best serves patients remains contested.

Key figures

• Gunther Eysenbach
• Norm Archer
• Warner Slack

Seminal works

• archer-2011
• eysenbach-2000

Frequently asked questions

What is the difference between a patient portal and a personal health record?

A patient portal is usually a secure window into one provider's electronic health record, controlled by the health system, whereas a personal health record is intended to be managed and controlled by the patient and may combine information from several sources.

Why do many patients not use portals even when they are available?

Adoption is limited by factors such as usability, perceived usefulness, privacy concerns, internet access, and differences in digital and health literacy, so availability alone does not ensure use.