Table 3 Quality appraisal using CASP checklist for cohort studies
CASP cohort study checklist | |||
|---|---|---|---|
Elzayat et al. 2017 [26] | Baertschi et al. 2003 [29] | Ordzhonikidze et al. 2009 [32] | |
Did the study address a clearly focused issue? | Yes | Yes | Yes |
Was the cohort recruited in an acceptable way? | Yes | Yes | Can’t tell |
Was the exposure accurately measured to minimise bias? | Yes | Yes | Can’t tell |
Was the outcome accurately measured to minimise bias? | Yes | Yes | Can’t tell |
(a) Have the authors identified all important confounding factors? | Yes | Yes | Yes |
(b) Have they taken account of the confounding factors in the design and/or analysis? | Yes | Yes | Yes |
(a) Was the follow up of subjects complete enough? | Not applicable | Yes | Yes |
(b) Was the follow up of subjects long enough? | Not applicable | Yes | Yes |
How precise are the results? | Can’t tell (no CI given) | Can’t tell (no CI given) | Can’t tell (no CI given) |
Do you believe the results? | Yes | Yes | Yes |
Can the results be applied to the local population? | Yes | Yes | No (study population not clearly defined) |
Do the results of this study fit with other available evidence? | Yes | Yes | Yes |
Does the study have implications for practice? | Yes | Yes | Yes |