Table 4 Risk scores for the different research methodologies. Following study name, columns 1 through 10 indicate percentage of respondents assigning each score. Brown > 30%, dark red > 20%, pink > 15% and rose > 10%. The final column shows overall mean score (scale 1 to 10) with green < 2.5 lowest risk, yellow between 2.5 and 5 low risk, orange between 5 and 7.5 high risk, red between 7.5 and 10 highest risk

From: Ranking Research Methodology by Risk — a cross-sectional study to determine the opinion of research ethics committee members