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Table 1 Number and characteristics of cats treated with the Seresto® collar (G1) and untreated controls (G2) that either completed or were excluded from the study

From: Effectiveness of a 10% imidacloprid/4.5% flumethrin polymer matrix collar in reducing the risk of Bartonella spp. infection in privately owned cats

  G1 G2 Total
Completed the study
 No. of cats 78 74 152
 Median age in months (interquartile range) 24 (10–48) 18 (10–36) 18 (10–36)
 Sex n (%) female/male 39/39 (50) 42 (56.8)/32 (43.2) 81 (52.29)/71 (46.71)
Excluded from the study
 Number of cats 26 26 52
 Infected with B. henselae at the inclusion 2 5 7
 Infected with B. clarridgeiae at the inclusion 5 1 6
Deceaseda 6 9 15
 Suspected adverse drug reaction 1 1
 Lost to follow up 12 11 23
  1. aCar trauma (n = 4); suspected infectious disease (n = 3); respiratory failure (n = 1); aortic thromboembolism (n = 1)