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Fig. 3 | BMC Psychiatry

Fig. 3

From: Exploring the digital footprint of depression: a PRISMA systematic literature review of the empirical evidence

Fig. 3

Number of studies using each definition discriminated by year (in the left panel) and by type of technology (in the right panel). Studies using the word 'digital' in their employed methodology (i.e., digital biomarkers) were published since 2018. Additionally, the majority of studies using ESM and EMA as selected methodology employed digital technology that relies on active data (i.e.,mobile apps and handheld computers)

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