Agreement in the identification of microcrystals (kappa index) compared with reference with and without DMSO for both observers (disagreement shown in bold and underlined)
| Reference | DMSO+ observer 1 | DMSO+ observer 2 | DMSO− observer 1 | Observer 2 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Negative | MSU | CPP | Negative | MSU | CPP | Negative | MSU | CPP | Negative | MSU | CPP | |
| Negative | 12 | 0 | 0 | 2 | 1 | 1 | 11 | 0 | 1 | 0 | 0 | 0 |
| MSU | 0 | 8 | 0 | 0 | 8 | 0 | 1 | 7 | 0 | 5 | 1 | 0 |
| CPP | 0 | 0 | 10 | 0 | 0 | 9 | 4 | 0 | 6 | 2 | 1 | 2 |
Agreement kappa: 1.00 for reference vs. DMSO+ observer 1; kappa: 0.845 for reference vs. DMSO+ observer 2; kappa: 0.691 for reference vs. DMSO− observer 2; kappa: 0.111 for reference vs. DMSO− observer 2