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Table 2 Illustrative big data linkage identification scheme

From: Connecting and linking neurocognitive, digital phenotyping, physiologic, psychophysical, neuroimaging, genomic, & sensor data with survey data

ID no. Description Format
IMS Nirvana Internal SQL unique number at the individual record (only resides at RTI) ####
PID IMS-assigned sequential Participant Identification Number (PID) #####
SID IMS-assigned Sample Identification Number (SID) (NIMH No. + Label No. per site) ###-####
PIN IMS-assigned unique code for a PID (for security and external linkages) ####
Study Watch (aka wearable) A Verily 16-alphanumeric serial number (manufactured device number) A#AAA##A######AA
Neurocognitive Assessment IMS-assigned PIN plus Group Number Assignment (i.e., 1, 2, 3, 4) ####-#
Digital Phenotyping IMS-assigned username based on user-entered information at baseline #######
  1. The approach taken balances all factors to ensure linkage across the various data streams and the prospective nature of data collection.