Table 3 Newcastle–Ottawa scale adapted for cross-sectional study

1.

Aygul, 2006 [13]

*

*

**

**

*

*

8

2.

Bir, 2006 [41]

*

*

**

**

*

*

8

3.

Demirkaya, 2001 [42]

*

*

**

**

*

*

8

4.

Dogan, 2018 [43]

*

*

**

**

*

*

8

5.

Haritha, 2020 [19]

*

*

**

**

*

*

8

6.

Moon, 2014 [44]

*

*

**

**

*

*

8

7.

Mueangson, 2020 [45]

*

*

**

**

*

*

8

8.

Sarkar, 2009 [46]

*

*

**

**

*

*

8

9.

Yildirim, 2007 [47]

*

*

**

**

*

*

8