Predictors and impact of MyChart use among patients treated at an NCI-designated cancer center
Due to the hypothesis generating, exploratory nature of this study, we will analyze a wide range of independent and dependent variables from varied sources. For the time period Jan 1, 2005 (ePiC was initiated in 2005), through September 30, 2015 (a range that includes periods with and without MyChart (which was initiated for this population on May 1, 2007), allowing comparison of outcomes between these periods), we will collect the following data on patients treated at the Harold C. Simmons Cancer Center at uT Southwestern: age, gender, race, insurance type, home address (which will be used to  estimate household income by census tract and  determine geographic distance between patient's home and the Simmons Cancer Center), cancer diagnosis, stage, date of diagnosis, date of death, date of last encounter (for survival analysis censoring if date of death unknown) treatment history (including surgery, radiation therapy, and medical therapies), medications, problem list, social history (including smoking history), code status (ie, DnR versus full) at the time of MyChart encounters, whether a primary care physician (PCP) was listed in the eMR at the time of MyChart encounters; number, type, and dates of clinic visits; number and dates of telephone encounters, enrollment in MyChart; number, type, and dates of MyChart encounters; nature (message or viewing) of MyChart encounter, type of data viewed in MyChart encounter (if a viewing encounter), type and content of message (query or update) of MyChart encounter (if a message encounter); type of physician to/from whom MyChart encounter directed/received (eg, oncologist, primary, etc). To permit access to patient electronic and paper medical records and/or local tumor registries to obtain and confirm the patient data described above, we will also obtain patient name and medical record number.
Any patient treated at the Harold C. Simmons Cancer Center at UT Southwestern between Jan 1, 2005 through September 30, 2015.