Additional file 1.

The ‘Data Abstraction’ tab includes all data abstracted from studies, as well as notes on methodology and limitations. The ‘Reverse Causality’ tab includes the assessment sheet used to systematically score studies on reverse causation bias.

Format: XLS Size: 96KB Download file

This file can be viewed with: Microsoft Excel Viewer

Lamberti et al. BMC Public Health 2013 13(Suppl 3):S18   doi:10.1186/1471-2458-13-S3-S18