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Table 2 Quality assessment performed by Jadad Scale of included studies

From: Antibiotic prophylaxis for prevention against Lyme disease following tick bite: an updated systematic review and meta-analysis

  Costello et al. 1989 [20] Shapiro et al. 1992 [21] Agre et al. 1993 [22] Nadelman et al. 2001 [23] Schwameis et al. 2016 [3] Harms et al. 2021 [9]
Randomization 1 2 2 2 2 2
Concealment of allocation 2 2 2 2 2 0a
Double blinding 2 2 2 2 2 0a
Withdrawals and dropouts 1 1 1 0 1 1
Total Jadad quality score 6 7 7 6 7 3
  1. a Controls did not receive any treatment including placebo, so concealment of allocation and double blinding could not be achieved