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Table 3 Intra-agreement kappa statistics for measurement occasion with the TD/TI method

From: Comparison between tracheal ratio methods used by three observers at three occasions in English Bulldogs

Occasion

Observer A

Observer B

Observer C

 

κ

PO

PA

NA

κ

PO

PA

NA

κ

PO

PA

NA

1 vs. 2

0.69/0.62

0.88/0.88

0.77/0.70

0.91/0.92

0.51/0.79

0.86/0.95

0.60/0.82

0.91/0.97

0.50/0.73

0.91/0.96

0.55/0.75

0.95/0.98

2 vs. 3

0.87/0.85

0.95/0.95

0.91/0.89

0.96/0.96

0.87/0.94

0.96/0.98

0.89/0.95

0.98/0.99

0.45/0.88

0.89/0.98

0.50/0.89

0.94/0.99

1 vs. 3

0.65/0.79

0.86/0.93

0.75/0.83

0.90/0.95

0.66/0.85

0.89/0.96

0.73/0.88

0.93/0.98

0.78/0.64

0.95/0.95

0.80/0.67

0.97/0.97

  1. Intra-agreement for the TD/TI method (with ratio <0.127 as definition of tracheal hypoplasia) for the different measurement occasions. Kappa (κ), observed agreement (PO), positive agreement (PA) and negative agreement (NA) values are presented for both right and left lateral recumbent radiographs (RLR/LLR). In total 56 RLR and 56 LLR radiographs.