Table 2C: Quality assessment of included case series (National Institute for Health and Care Excellence Criteria)

Study

Year

Multicen-tered

Study objective described

Inclusion and exclusion criteria reported

Outcomes definition reported

Prospective

Consecutive recruitment

Description of study findings

Stratification of out-omes

Buchacra et al.

2011

No

Yes

Yes

No

Yes

Unclear

Yes

No

Ahmed et al.

2014

No

Yes

No

Yes

Yes

Unclear

Yes

No

Voskanyan et al.

2014

Yes

Yes

Yes

Yes

Yes

Unclear

Yes

No

Vandewalle et al.

2009

No

Yes

Yes

Yes

Yes

Unclear

Yes

No

Belovay et al.

2012

No

Yes

Yes

No

Yes

Unclear

Yes

No

Patel et al.

2013

No

Yes

Yes

No

Yes

Unclear

Yes

No

Arriola- Villalobos et al.

2012

No

Yes

Yes

No

Yes

Unclear

Yes

No

Arriola- Villalobos et al.

2013

No

Yes

Yes

No

Yes

Yes

Yes

No

Spigel et al.

2009

Yes

Yes

Yes

No

Yes

Unclear

Yes

No

Wang et al.

2015

No

Yes

No

Yes

No

Yes

Yes

Yes

Klamann et al.

2015

No

Yes

Yes

Yes

No

Yes

Yes

No

Khan et al.

2015

Yes

Yes

Yes

No

No

Unclear

Yes

Yes

Seibold et al.

2016

No

Yes

Yes

Yes

No

Unclear

Yes

No

Gallardo et al.

2016

No

Yes

Yes

Yes

No

Yes

Yes

Yes

Ferguson et al.

2016

No

Yes

Yes

Yes

No

Yes

Yes

Yes

Lindstrom et al.

2016

No

Yes

Yes

Yes

Yes

Unclear

Yes

No

El Wardani et al.

2015

No

Yes

Yes

Yes

No

Yes

Yes

Yes

Shiba et al.

2017

No

Yes

Yes

Yes

Yes

Yes

Yes

No

Zheng et al.

2017

No

Yes

Yes

No

No

Unclear

Yes

No

Berdahl et al.

2017

No

Yes

Yes

Yes

Yes

Unclear

Yes

No

Ferguson et al.

2017

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Gonnermann et al.

2017

No

Yes

Yes

Yes

No

Unclear

Yes

No

Kurji et al.

2017

No

Yes

Yes

Yes

No

Yes

Yes

Yes