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Table 1 Questions answered in order to assess bias in each of the 29 studies

From: C-reactive protein: quantitative marker of surgical trauma and post-surgical complications in dogs: a systematic review

Selection bias

Were included dogs representative for the population of dogs?

Information bias

Were the criteria for classification of dogs in different groups defined and reported?

Performance bias

Were the researchers blinded from knowledge about the animals/groups when processing data?

Detection bias

Was the endpoint detectable? (e.g., was CRP measured at relevant time-points?)

Attrition bias

Were exclusion criteria defined and patients lost to follow up reported?

Reporting bias

Were reports free of suggestions of selective outcome reporting?

Other bias

Was the study apparently free of other problems that could result in high risk of bias?