From the January 2017 issue of HealthCare Business News magazine
By Ann Meehan
What is big data? The term is used frequently in articles, e-newsletters and presentations. But what does it really mean? According to IBM, “Big data is being generated by everything around us at all times. Every digital process and social media exchange produces it. Systems, sensors and mobile devices transmit it. Big data is arriving from multiple sources at an alarming velocity, volume and variety.” And big data is projected to grow.
According to statistics reported in Computerworld, by 2020:
• There will be approximately 40 zettabytes of data, which is equivalent to 40 trillion gigabytes and is approximately 5,200 gigabytes per person.
• Only about 33 percent of data will contain information that might be valuable.
• Only 15 percent of data will be stored in the cloud. Most data will be created by machines. While these definitions and statistics address all types of data across all industries, big data is especially relevant to health care.
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Health care is an industry with large amounts of data that make it particularly vulnerable, requiring an urgent need to ensure data accuracy and trustworthiness. This data ultimately becomes information that is necessary to provide quality patient care and making solid business decisions. The data must not only be secure and accurate, it must be meaningful, making analytics and information governance key to realizing the benefits of all this data. Having an information governance (IG) plan in place provides the formal structure around all types of data and information produced by various mechanisms and technologies, and maintained on various media, ensuring it is reliable and meets all of its diverse needs within a health care organization.
In addition to the traditional legal health record, and financial transactions — including charges, payments and costs — data comes from various mobile devices, wearables and outside sources. One source of outside data is patient generated health data (PGHD). PGHD is a term that describes health-related data that is gathered by patients and/or their family members to help monitor and address health concerns. PGHD can come from many sources and technologies. According to HealthIT.gov, health history, treatment history, biometric data, symptoms and lifestyle choices are examples of these sources. PGHD are distinct from data generated in clinical settings and through encounters with providers in two important ways:
• Patients, not providers, are primarily responsible for capturing or recording the data.