Table 3.
Ct values and DNA counts before and during treatment in 39 cats
| Classification | Time point | Ct value (mean ± SD) |
Median DNA count (range) |
|---|---|---|---|
| True positive (n = 17) |
Pretreatment | 28.60 ± 4.04 | 89,982 (45–5,959,012) |
| NC1 | 34.71 ± 4.06 | 524 (0–25,951) | |
| NC2 | 35.16 ± 4.30 | 910 (0–64,588) | |
| False positive (n = 8) |
Pretreatment | 31.35 ± 4.98 | 45,857 (67–111,470) |
| Day 7 | 35.04 ± 7.02 | 143 (0–12,565,433) | |
| Day 14 | 36.83 ± 5.16 | 0 (0–130,665) | |
| True negative (n = 14) |
Pretreatment | 40 ± 0 | 0 (0) |
| Day 7 | 38.96 ± 2.25 | 0 (0–1779) | |
| Day 14 | 39.34 ± 1.73 | 0 (0–761) |
NC = negative culture