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Table 2 Agreement of reviewers on early recanalization in the fascial interposition trial and the cautery study.

From: Frequency and patterns of early recanalization after vasectomy

Reviewers Crude agreement Kappa coefficient 95% CI
FI trial    
1 vs. 2 0.89 0.60 0.53 – 0.68
1 vs. 3 0.95 0.84 0.79 – 0.89
2 vs. 3 0.90 0.58 0.49 – 0.66
All three 0.87 0.68 0.64 – 0.72
Cautery study    
1 vs. 2 0.93 0.40 0.22 – 0.58
1 vs. 3 0.88 0.35 0.21 – 0.49
2 vs. 3 0.91 0.42 0.27 – 0.57
All three 0.86 0.38 0.34 – 0.43
  1. FI = fascial interposition
  2. Note: agreement was assessed on two categories (recanalization, no recanalization) in the FI trial and on three categories (recanalization, no recanalization, indeterminate) in the cautery study.