Table 6.
Longitudinal/Prospective Observational Studies Appraisal.
| Citation | Q1. Were the 2 groups similar and recruited from the same population? | Q2. Were the exposures measured similarly to assign people to both exposed and unexposed groups? | Q3. Was the exposure measured in a valid and reliable way? | Q4. Were confounding factors identified? | Q5. Were strategies to deal with confounding factors stated? | Q6. Were the groups/participants free of the outcome at the start of the study (or at the moment of exposure)? | Q7. Were the outcomes measured in a valid and reliable way? | Q8. Was the follow up time reported and sufficient to be long enough for outcomes to occur? | Q9. Was follow up complete, and if not, were the reasons to loss to follow up described and explored? | Q10. Were strategies to address incomplete follow up utilized? | Q11. Was appropriate statistical analysis used? | % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chokshi et al 40 | U | Y | Y | N | N | Y | Y | Y | Y | NA | Y | 70 |
| Kennedy et al 44 | Y | Y | Y | Y | Y | Y | Y | Y | N | N | Y | 81 |
| Medina Córdoba and Pérez Villa 45 | Y | Y | Y | N | N | Y | Y | Y | Y | NA | Y | 80 |
Abbreviations: Y, yes; N, no; NA, not applicable; U, unclear.