As part of the guideline appraisal, weighted kappa scores (kw)
were calculated to determine the strength of agreement
between the two assessors (AT and PLV). These values
ranged from moderate kw = 0.49, (95% CI: 0.17–0.82) to
very good 0.85 (95% CI: 0.76–0.93). The overall inter-rater
agreement was kw = 0.82 (95% CI: 0.78–0.85) indicating
very good strength of agreement