Table 1. Methodological quality assessment using CASP Author (year) 3 Case 4 Controls 5 Variables 6b. Confounders 9 Results 10 Can results Quality recruitment acceptable? measured considered? believable? be applied? acceptable? accurately? Conti-Ramsden & Y/CT Y/CT Y Y/CT Y/CT Y/CT Medium Friel-Patti (1983) & as above as Y as above Y/CT as above Medium Friel-Patti (1984) as above as above Y as above Y/CT as above Medium (1990) Cunningham et al. Y/CT Y/CT Y Y Y/CT Y/CT Medium (1985) Fey et al. (1999) Y/CT Y Y Y Y Y/CT High Protor-Williams et as as above Y as above Y as above High al. (2001) Paul & Elwood Y/CT Y Y Y Y CT Medium (1991) Rescorla & Fechnay CT Y Y Y Y CT Medium (1996) Rescorla et al. CT Y Y as above Y as above Medium (2001)
Table 1. Methodological quality assessment using CASP Author (year) 3 Case recruitment acceptable? 4 Controls acceptable? 5 Variables measured accurately? 6b. Confounders considered? 9 Results believable? 10 Can results be applied? Quality Conti-Ramsden & Friel-Patti (1983) Y/CT Y/CT Y Y/CT Y/CT Y/CT Medium & Friel-Patti (1984) as above as Y as above Y/CT as above Medium (1990) as above as above Y as above Y/CT as above Medium Cunningham et al. (1985) Y/CT Y/CT Y Y Y/CT Y/CT Medium Fey et al. (1999) Y/CT Y Y Y Y Y/CT High Protor-Williams et al. (2001) as as above Y as above Y as above High Paul & Elwood (1991) Y/CT Y Y Y Y CT Medium Rescorla & Fechnay (1996) CT Y Y Y Y CT Medium Rescorla et al. (2001) CT Y Y as above Y as above Medium
Blackwell%20et%20al%202015.docx