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Table 1 Research question using PECO format

From: Correlates of mobile screen media use among children aged 0–8: protocol for a systematic review

Criteria

Description

P: population

Children under 8 years

E: exposure

Correlates of mobile screen media use

C: comparison

With vs. without the correlates

O: outcome

Use of mobile screens (e.g. mobile phones, electronic tablets, handheld computers, personal digital assistants (PDA) and any other form of mobile electronic media)

Types of studies

All designs (cross-sectional, case-control, cohort and intervention studies), only quantitative studies

Exclusion

Papers that have not studied correlates of screen time of mobile devices

Studies that have studied sedentary behaviour but not explicitly addressed screen time

Studies that have not included at least one form of a mobile screen device

Systematic reviews and meta-analysis

Grey literature

Qualitative studies

Studies carried out in settings other than home or community

Studies carried out among unhealthy participants

Studies with larger age group with no sub-group analysis for the target group

Papers published before 2009 and after December 2015

Papers published in language other than English

Non-peer-reviewed articles

Studies involving children older than 8 years