Includes studies of Raynaud’s phenomenon and their assessed risk of bias (quality score) regarding the diagnosis “Raynaud’s phenomenon” (Diagnosis sum) and the total sum when the quality score for assessing diagnosis’ Raynaud’s phenomenon, “study method” and “exposure” has been added (Total score).

The studies are presented in descending order based on the total score. Higher scores indicate higher “quality”, indicating a smaller possible risk of bias. Furthermore, the study design is given for each study.