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Table 4 Results of the Newcastle-Ottawa Scale

From: Grey matter changes on brain MRI in subjective cognitive decline: a systematic review

Reference

Selection

Comparability

Exposure

Total

Adequate definition

Representativeness

Selection of controls

Definition of controls

Ascertainment

Method

Non-response rate

Beckett et al. (2015) [31]

*

*

 

*

**

*

*

 

7

Caillaud et al. (2020) [32]

*

*

*

*

**

*

*

 

8

Cantero et al. (2016) [33]

*

  

*

**

*

*

 

6

Cherbuin et al. (2015) [34]

 

*

*

*

**

*

*

 

7

Chételat et al. (2010) [16,17]

*

*

*

*

**

*

*

 

8

Choi et al. (2015) [18]

*

  

*

*

*

*

 

5

Cong et al. (2018) [35]

 

*

  

**

*

*

 

5

Dong et al. (2020) [19]

*

  

*

**

*

*

 

6

Eliassen et al. (2017) [61]

*

 

*

*

**

*

*

 

6

Erk et al. (2011) [20]

*

 

*

*

**

*

*

 

6

Fan et al. (2017)

*

*

 

*

**

*

*

 

6

Flier et al. (2004) [38]

*

*

*

*

*

*

*

 

7

Hafkemeijer. (2013) [21, 22]

*

*

*

*

**

*

*

 

8

Hong et al. (2014) [62]

*

*

 

*

**

*

*

 

7

Hong et al. (2015) [23]

*

 

*

*

**

*

*

 

7

Ivanoiu et al. (2015) [39]

*

*

*

*

**

*

*

*

9

Jessen et al. (2006) [40]

*

*

*

*

**

*

*

 

8

Kim et al. (2013) [56]

*

*

*

*

**

*

*

 

8

Kiuchi et al. (2014) [11]

*

*

*

*

**

*

*

 

8

Lauriola et al. (2017) [63]

*

 

*

*

**

*

*

 

7

Liang et al. (2020) [24]

*

*

*

*

**

*

*

 

8

Lim et al. (2019) [66]

*

*

*

*

 

*

*

 

6

Lindberg et al. (2017) [41]

*

*

*

*

**

*

*

 

8

López-Sanz et al. (2017) [42]

*

*

 

*

**

*

*

 

7

López-Sanz et al. (2016) [43]

*

*

 

*

**

*

*

 

7

Marcotte et al. (2019) [44]

*

  

*

**

*

*

 

6

Meiberth et al. (2015) [64]

*

*

*

*

**

*

*

 

8

Niemantsverdriet et al. (2018) [65]

*

*

*

*

**

*

*

 

8

Parker et al. (2020) [25]

 

*

*

  

*

*

*

5

Perrotin et al. (2015) [26]

*

*

*

*

**

*

*

 

8

Perrotin et al. (2017) [12]

*

*

*

*

**

*

*

 

8

Platero et al. (2018)

*

*

*

*

**

*

*

 

8

Risacher et al. (2020) [45]

*

*

 

*

**

*

*

 

7

Rogne et al. (2016) [46]

*

  

*

**

*

*

 

6

Ryu et al. (2017) [47]

*

*

*

*

**

*

*

 

8

Sánchez-Benavides et al. (2018)

*

  

*

**

*

*

 

6

Saykin et al. (2006) [27]

*

  

*

**

*

*

 

6

Scheef et al. (2019) [48]

 

*

*

 

**

*

*

 

6

Scheef et al. (2012) [28]

 

*

*

 

**

*

*

 

6

Schultz et al. (2015) [49]

    

**

*

*

 

4

Selnes et al. (2012) [13]

*

*

*

*

**

*

*

 

8

Shu et al. (2018) [50]

*

*

*

*

*

*

*

 

7

Striepens et al. (2010) [51]

*

*

*

*

*

*

*

 

7

Sun et al. (2016) [29]

*

*

*

*

*

*

*

 

7

Tepest et al. (2008) [52]

*

*

 

*

*

*

*

 

6

van Rooden et al. (2018) [53]

*

   

**

*

*

 

5

Wang et al. (2006)

*

  

*

**

*

*

 

6

Xue et al. (2020) [30]

*

*

 

*

**

*

*

 

7

Yue et al. (2018) [54]

*

*

*

*

**

*

*

 

8

Zajac et al. (2020) [55]

*

*

 

*

**

*

*

 

7

Zhao et al. (2019a)

*

*

 

*

*

*

*

 

6

Zhao et al. (2019b)

*

*

*

 

**

*

*

 

7

  1. The “*” means a star or point allotted for each category