Skip to main content

Table 3 Newcastle—Ottawa Quality Assessment Scale (NOS) for case control and cohort studies

From: An evaluation of the Invisalign® Aligner Technique and consideration of the force system: a systematic review

Study

Selection (max 1 star for each of the 4 items)

Comparability (max 2 stars for the 1 item)

Outcome (max 1 star for each of the 3 items)

Total stars

Buschang 2015 [31]

*

*

*

*

*

*

*

*

8/9

Charalampakis 2018 [10]

*

*

*

*

**

*

*

*

9/9

Chisari 2014 [29]

*

*

  

*

*

*

*

6/9

Dai 2019 [32]

*

*

*

*

**

*

*

*

9/9

Drake 2012 [26]

*

*

*

*

*

*

*

*

8/9

Duncan 2016 [27]

*

*

*

*

*

*

*

*

8/9

Grünheid 2016 [28]

*

*

*

*

*

*

*

*

8/9

Grünheid 2017 [24]

*

*

*

*

*

*

*

*

8/9

Gu 2017 [16]

*

*

*

*

**

*

*

*

9/9

Haouili 2020 [12]

*

*

*

*

**

*

*

*

9/9

Hennessy 2016 [30]

*

*

*

*

*

*

*

 

7/9

Houle 2017 [28]

*

*

  

*

*

*

*

6/9

Kassas 2013 [17]

*

*

*

*

**

*

*

*

9/9

Khosravi 2017 [13]

*

*

*

*

**

*

*

*

9/9

Krieger 2012 [20]

*

*

  

*

*

*

*

6/9

Lanteri 2018 [14]

*

*

*

*

**

*

*

*

9/9

Morales-Burruezo 2020 [18]

*

*

*

*

*

*

*

*

8/9

Pavoni 2011 [25]

*

*

  

*

*

*

*

6/9

Ravera 2016 [15]

*

*

*

*

**

*

*

*

9/9

Riede 2021 [23]

*

*

*

*

*

*

*

 

7/9

Sfondrini 2018 [33]

*

*

*

*

*

*

*

*

8/9

Simon 2014 [11]

*

*

  

*

*

*

*

6/9

Solano-Mendoza 2016 [22]

*

*

*

*

*

*

*

*

8/9

Zhou 2020 [21]

*

*

*

*

*

*

*

 

7/9

Back to article page

Systematic Reviews

ISSN: 2046-4053