Table 3.
Cohen’s kappa coefficient and concordance rates of microbiological culture results.
| Positive proximal double-J culture | Negative proximal double-J culture | ||
| Positive BUC in-stay double-J | 30 | 2 | Cohen’s kappa coefficient value 0.13 |
| Negative BUC in stay double-J | 39 | 11 | Concordance rate 50.0% |
| Positive distal double-J culture | Negative distal double-J culture | ||
| Positive BUC in-stay double-J | 30 | 2 | Cohen’s kappa coefficient value 0.22 |
| Negative BUC in stay double-J | 34 | 16 | Concordance rate 56.1% |
| Positive distal double-J culture | Negative distal double-J culture | ||
| Positive proximal double-J culture | 72 | 8 | Cohen’s kappa coefficient value 0.61 |
| Negative proximal double-J culture | 4 | 13 | Concordance rate 88.0% |
| Positive proximal double-J culture | Negative proximal double-J culture | ||
| Positive RP culture | 18 | 3 | Cohen’s kappa coefficient value 0.01 |
| Negative RP culture | 31 | 6 | Concordance rate 41.3% |
| Positive distal double-J culture | Negative distal double-J culture | ||
| Positive RP culture | 19 | 2 | Cohen’s kappa coefficient value 0.12 |
| Negative RP culture | 28 | 9 | Concordance rate 48.3% |
| Positive BUC in-stay double-J | Negative BUC in stay double-J | ||
| Positive RP culture | 9 | 8 | Cohen’s kappa coefficient value 0.33 |
| Negative RP culture | 6 | 23 | Concordance rate 69.6% |
| Positive proximal double-J culture | Negative proximal double-J culture | ||
| Positive BUC post-removal double-J | 10 | 1 | Cohen’s kappa coefficient value 0.06 |
| Negative BUC post-removal double-J | 34 | 9 | Concordance rate 35.2% |
| Positive distal double-J culture | Negative distal double-J culture | ||
| Positive BUC post-removal double-J | 10 | 1 | Cohen’s kappa coefficient value 0.09 |
| Negative BUC post-removal double-J | 31 | 12 | Concordance rate 40.7% |
| Positive BUC in-stay double-J | Negative BUC in stay double-J | ||
| Positive BUC post-removal double-J | 6 | 2 | Cohen’s kappa coefficient value 0.19 |
| Negative BUC post-removal double-J | 17 | 24 | Concordance rate 61.2% |
Abbreviations are as follows: BUC: bladder urine culture; RP: renal pelvis (selective).