Intrareader reliability between 18 experts reading SG video clips
| Kappa intraobserver | Kappa min | Kappa max | Light’s kappa | 95% CI |
| SMG+PG | ||||
| DS | 0.60 | 0.97 | 0.81 | 0.77 to 0.84 |
| DS+fatty and fibrous | 0.60 | 0.98 | 0.79 | 0.76 to 0.83 |
| SMG (n=104) | ||||
| DS | 0.46 | 0.97 | 0.75 | 0.71 to 0.80 |
| DS+fatty and fibrous | 0.46 | 0.97 | 0.73 | 0.70 to 0.79 |
| PG (n=95) | ||||
| DS | 0.69 | 0.98 | 0.86 | 0.77 to 0.87 |
| DS+fatty and fibrous | 0.64 | 0.98 | 0.79 | 0.76 to 0.83 |
Primary analysis: according to Delphi scoring (DS), sensitivity analysis: DS+imputing ‘fatty: grade 1, fibrous: grade 3’.
PG, parotid gland; SG, salivary gland; SMG, submandibular gland