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Kappa statistic (κ) of inter-classification agreement, 95% confidence intervals, and agreement percentage between sample classification by promoter methylation of HOXA9 and NID2 and by histology on head and neck cancer saliva samples. (n=51)
| Variable | Kappa coefficient |
|
|---|---|---|
| κ (95% CI) |
Percentage agreement (%) |
|
| Oral and oropharyngeal cancer | ||
| HOXA9 | 0.52 (−0.12, 0.42) | 59 |
| NID2 | 0.55 (−0.18, 0.37) | 59 |
| Oral cancer | ||
| HOXA9 | 0.21 (−0.11, 0.52) | 60 |
| NID2 | 0.23 (−0.03, 0.49) | 60 |
