Skip to main content
. 2021 Jun 14;56(4):668–693. doi: 10.1111/1460-6984.12633

TABLE B1.

CASP quality appraisal scores

(a) CASP quality appraisal of case‐control studies; questionsa and results (2 = yes, 1 = can't tell, 0 = no) for included papers, maximum score = 18
Reference Q1 Did the study address a clearly focused issue? Q2 Did the authors use an appropriate method to answer their question? Q3 Were the cases recruited in an acceptable way? Q4 Were the controls selected in an acceptable way? Q5 Was the exposure accurately measured to minimize bias? Q6(b) Have the authors taken account of the potential confounding factors in the design and/or in their analysis? Q9 Do you believe the results? Q10 Can the results be applied to the local population? Q11 Do the results of this study fit with other available evidence? Total, n (%)
Baylis et al. (2008) 2 2 2 2 2 2 2 1 1 16 (88.9)
Collett et al. (2010) 2 2 2 2 2 2 2 1 1 16 (88.9)
Finnegan (1974) 2 2 1 1 2 2 2 1 1 14 (77.8)
Lemos and Feniman (2010) 2 2 2 2 2 2 2 1 1 16 (88.9)
Whitehill et al. (2003) 2 2 2 2 2 2 2 2 1 17 (94.4)
(b) CASP quality appraisal of cohort studies; questionsb and results (yes = 2, can't tell = 1, no = 0) for included papers, maximum score = 24
Reference Q1 Did the study address a clearly focused issue? Q2 Was the cohort recruited in an acceptable way? Q3 Was the exposure accurately measured to minimize bias? Q4 Was the outcome accurately measured to minimize bias? Q5(a) Have the authors identified all important confounding factors? Q5(b) Have they taken account of the confounding factors in the design and/or analysis? Q6(a) Was the follow‐up of subjects complete enough? Q6(b) Was the follow‐up of subjects long enough? Q9 Do you believe the results? Q10 Can the results be applied to the local population? Q11 Do the results of this study fit with other available evidence? Q12 What are the implications of this study for practice? Total, n (%)
Anderson et al. (2016) 2 2 2 2 2 2 2 2 2 1 1 1 20 (83.3)

Note: aQuestions 6a, 7 and 8 are not included in the results as related to intervention studies specifically: Q6(a): Aside from the experimental intervention, were the groups treated equally?, Q7: How large was the treatment effect? and Q8: How precise was the estimate of the treatment effect?

Note: bQuestions 7 and 8 are not included in results as no numeric score applied to these items (Q7: What are the results of this study? and Q8: How precise are the results?).