Table 2 Category of data reported by each study

Lockey

✓

×

×

Breckwoldt

✓

×

×

Diggs

✓

✓

✓

Fullerton 2009

×

×

✓

Fullerton 2011

✓

×

×

Germann

✓

×

×

Prekker

✓

✓

✓

Von Vopelius

✓

×

×

Wang

✓

✓

✓

Warner

✓

×

✓

Le Cong

✓

×

×

Kamiutsuri

✓

×

×

Rognås

✓

×

×

Brown

✓

×

×

Chesters

✓

×

×

Gunning 2013

✓

×

×

Katzenell

×

✓

×

Lah

✓

×

×

Lyon

×

×

✓

Merlin

✓

×

×

Caruana

✓

×

×

Sollid

✓

×

×

Sunde

✓

×

×

Wnent

×

×

✓

Bernard 2015

✓

×

×

McQueen

✓

×

×

Theoni

✓

×

×

Cobas

✓

✓

×

Gunning 2009

✓

×

×

Fakhry

✓

×

×

Helm

✓

×

×

Timmermann

✓

×

×

Tam

×

✓

×

McIntosh

✓

×

×

Jacoby

×

×

✓

Bernard 2010

✓

×

×

Denver

×

×

✓

Vadeboncoeur

✓

×

×