Table 1 Composition of the panel and results of the pre-release testing and of the study
From: External quality assessment of cytomegalovirus DNA detection on dried blood spots
Correct qualitative results | ||||||||
|---|---|---|---|---|---|---|---|---|
PCR | ||||||||
Pre-release testing: qualitative results on DBS | Conventional | Real-time | Total results n = 33 n(%) | |||||
SAMPLE | Target sample concentration (copies/ml) | MI1 | UT12 | UT22 | In-house n = 5 n (%) | Commercial n = 5 n (%) | In-house n = 23 n (%) | |
A | 3.9 × 106 | + | + | + | 5 (100.0) | 5 (100.0) | 23 (100.0) | 33 (100.0) |
B | 9.6 × 105 | + | + | + | 5 (100.0) | 5 (100.0) | 22 (95.7) | 32 (97.0) |
C | 8.8 × 104 | + | + | + | 5 (100.0) | 5 (100.0) | 20 (87.0) | 30 (90.9) |
D | 9.4 × 103 | + | + | + | 5 (100.0) | 5 (100.0) | 10 (43.5) | 20 (60.6) |
E | 9.4 × 103 | + | - | + | 5 (100.0) | 5 (100.0) | 9 (39.1) | 19 (57.6) |
F | 7.3 × 102 | - | - | + | 2 (40.0) | 2 (40.0) | 2 (8.7) | 6 (18.2) |
G | 7.3 × 102 | - | - | - | 0 (0.0) | 1 (20.0) | 1 (4.3) | 2 (6.1) |
H | negative | - | - | - | 4 (80.0) | 5 (100.0) | 22 (95.7) | 31 (93.9) |
I | negative | - | - | - | 4 (80.0) | 4 (80.0) | 22 (95.7) | 30 (90.9) |