Concordance between the American and European consensus recommendations
| Observed agreement, % | κ (95% CI) | |
| American (without NPD testing) versus European recommendations | ||
| All subjects | 84.8 | 0.87 (0.82 to 0.93) |
| RESP | 90.2 | 0.92 (0.87 to 0.98) |
| PANC | 86.1 | 0.65 (0.36 to 0.94) |
| AZOOSP | 79.5 | 0.87 (0.80 to 0.94) |
| American (with NPD testing) versus European recommendations | ||
| All subjects | 83.2 | 0.75 (0.67 to 0.83) |
| RESP | 93.0 | 0.91 (0.82 to 0.99) |
| PANC | 86.1 | 0.61 (0.33 to 0.89) |
| AZOOSP | 73.5 | 0.65 (0.53 to 0.78) |
AZOOSP, obstructive azoospermia; NPD, nasal potential difference; PANC, idiopathic recurrent acute or chronic pancreatitis; RESP, idiopathic sinopulmonary disease.