Sensitivity of a point of care tick-test for the development of Lyme borreliosis

Parasites & Vectors

Table 1 Summary of epidemiological data from this study

Outcome	Criteria	Frequency	Sensitivity	Specificity
Self-reported EM	● Self-reporting of EM between 0 and 3 months after reporting a tick bite	25	n/a	n/a
Self-reported	● Same as self-reported EM	14	0% (0–22)	n/a
EM treated with antibiotics	● No other tick bites reported besides those due to the tested ticks
	● Self-reporting of GP prescribed antibiotic treatment for EM
GP-confirmed EM	● Same criteria as self-reported EM, treated with antibiotics	10	0% (0–28)	n/a
	● Written GP-confirmation of the self-reported EM diagnosis
No EM	● No reporting of EM between t = 0 and t = 3 months after a tick bite	45	n/a	100% (92–100)
Unknown	● Lost to follow-up after a tick bite	52	n/a	n/a

Ticks from 122 individuals tested negative with the the Careplus Tick-test. The 25 self-reported EM cases were critically evaluated: Only those with confirmation by their GP, were used to calculate the sensitivity of the self-test. Out of 14 self-reported EM cases treated with antibiotics, we received ten written informed consents allowing us to contact the GP for confirmation of the EM diagnosis. These ten EM cases were subsequently confirmed by their GPs.

ISSN: 1756-3305