Table 1 RT-LAMP sensitivity across different ranges of Ct values.

From: A molecular test based on RT-LAMP for rapid, sensitive and inexpensive colorimetric detection of SARS-CoV-2 in clinical samples

RT-PCR (Ct value range)**

RT-LAMP

True positives

False negatives

% Sensitivity (95% CI)*

[0–40]

84

42

67.2 (58.56–74.81)

[0–32]

68

0

100 (94.65–100)

[32–35]

17

20

45.95 (31.04–61.62)

[35–40]

11

27

28.95 (17–44.76)

  1. *Wilson’s binominal confidence interval.
  2. **Ct values rounded to the nearest unit.