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Table 2 Risk of bias in studies included in the systematic review using the QUADAS2 tool

From: A systematic review and meta-analysis of studies on screening for mild cognitive impairment in primary healthcare

Study

Risk of bias

Applicability concerns

Patient selection

Index test

Reference standard

Flow and timing

Patient selection

Index test

Reference standard

Brodaty [20]

LR

UR

HR

LR

LR

HR

LR

Zaganas [27]

UR

LR

LR

HR

LR

LR

LR

Arabi [33]

HR

HR

LR

UR

LR

LR

LR

Arabi 2016 [34]

LR

LR

UR

LR

LR

LR

LR

Chan [31]

UR

LR

LR

UR

HR

LR

LR

Eichler [26]

LR

HR

LR

UR

LR

LR

LR

Grober 2014 [38]

HR

LR

LR

UR

UR

LR

LR

Grober 2017 [39]

HR

HR

LR

UR

UR

LR

LR

Grober 2016 [37]

LR

HR

LR

UR

UR

LR

LR

Iatrakia 2017

HR

HR

HR

UR

UR

UR

LR

Okudur [36]

UR

HR

LR

UR

LR

LR

LR

Larner [23]

UR

HR

HR

LR

HR

LR

UR

Pandhita [27]

LR

HR

UN

LR

HR

HR

HR

Petrazzuoli [30]

LR

HR

HR

LR

LR

UN

LR

Salami 2019 [29]

HR

LR

UN

HR

HR

LR

UN

Shaaban [35]

HR

UN

UN

HR

LR

LR

LR

Stein

LR

UN

LR

HR

LR

LR

LR

Teixeira [32]

HR

LR

UN

HR

LR

LR

UR

Thyrian

HR

UN

UN

HR

UN

LR

LR

Xue [22]

HR

LR

UN

UN

LR

LR

HR

Yang [21]

HR

HR

UN

HR

UN

LR

LR

  1. Note: LR Low Risk, HR High Risk, UR Unclear Risk