TABLE 1.
Precision of LCx using the 0.2-ml sample extraction procedure
| Specimen (n = 12) | Mean copies/ml
|
SD (% CVa)
|
|||
|---|---|---|---|---|---|
| Log | No. | Intrarun | Interrun | Total | |
| 2171 | 2.62 | 561 | 0.36 (13.8) | 0.17 (6.5) | 0.34 (13.0) |
| 1970 | 2.95 | 1,243 | 0.46 (15.7) | 0.07 (2.4) | 0.39 (13.1) |
| Panel 3 | 3.17 | 1,772 | 0.24 (7.5) | 0.19 (5.9) | 0.30 (9.5) |
| 2199 | 3.25 | 2,262 | 0.25 (7.7) | 0.19 (5.7) | 0.28 (8.5) |
| 2201 | 3.94 | 9,456 | 0.09 (2.2) | 0.15 (3.9) | 0.18 (4.5) |
| 2186 | 4.16 | 15,577 | 0.12 (2.9) | 0.11 (2.7) | 0.17 (4.0) |
| Panel 4 | 4.59 | 39,792 | 0.06 (1.4) | 0.02 (0.5) | 0.07 (1.5) |
| 1971 | 4.77 | 61,769 | 0.07 (1.6) | 0.09 (2.0) | 0.12 (2.6) |
| 2203 | 5.62 | 470,242 | 0.18 (3.1) | 0.15 (2.6) | 0.23 (4.1) |
| 1974 | 5.70 | 536,872 | 0.17 (2.9) | 0.03 (0.5) | 0.14 (2.4) |
| 2205 | 6.62 | 4,280,114 | <0.01 (0.7) | 0.08 (1.2) | 0.09 (1.4) |
a
CV, coefficient of variation.