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Table 2 Interrater agreement for all papers and for the two rounds separately

From: Elaborating on the assessment of the risk of bias in prognostic studies in pain rehabilitation using QUIPS—aspects of interrater agreement

  All papers (43 papers) Round 1 (15 papers) Round 2 (28 papers)
κ 1 95% CI2 κ 1 95% CI2 κ 1 95% CI2
1. Study participation 0.356 0.063–0.669 − 0.023 − 0.041–0.594 0.475 0.100–0.851
2. Study attrition 0.647 0.353–0.771 0.400 0.000–0.835 0.714 0.426–1.000
3. Prognostic factor
measurement
0.384 0.044–0.723 0.852 0.544–1.00 0.028 − 0.453–0.612
4. Outcome measurement 0.358 0.072–0.645 0.211 0.00–0.660 0.443 0–095-0.792
5. Study confounding 0.526 0.269–0.784 0.561 0.00–1.00 0.481 0.186–0.776
6. Statistical analysis and reporting 0.364 0.077–0.651 − 0.070 0.321–0.486 0.533 0.176–0.627
Overall 0.475 0.358–0.601 0.323 0.129–0.517 0.536 0.390–0.682
  1. 1Quadratic weighted kappa (κ)
  2. 295% Confidence Interval (95% CI)