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Table 4 Owner assessment of pruritus using a visual analogue scale (PVAS) for cats in homes naturally infested with fleas before and after treatment with either a single topical dose of fluralaner or three consecutive topical treatments with selamectin

From: In-home assessment of either topical fluralaner or topical selamectin for flea control in naturally infested cats in West Central Florida, USA

Treatment group

Days post-treatment

0

7

14

21

28–30

40–45

56–60

82–86

Fluralaner1

# Cats

31

30

30

30

31

31

31

31

Mean PVAS Score3

5.9a,x

2.6a,y

1.9a,y

1.1b,y

1.2b,y

1.0a,y

1.1a,y

0.9a,y

SD

2.31

1.93

1.61

1.40

1.70

1.32

1.71

0.96

Range

(1.1–10)

(0.0–8.2)

(0.0–5.2)

(0.0–5.0)

(0.0–6.3)

(0.0–5.1)

(0–6.7)

(0.0–2.7)

% Reduction4

 

56.0

68.0

80.7

79.7

82.7

81.7

84.3

Selamectin2

# Cats

29

28

28

29

28

26

27

26

Mean PVAS Score3

6.6a,x

3.1a,y

2.7a,y

2.9a,y

2.6a,y

1.3a,y

1.6a,y

1.6a,y

SD

2.58

1.09

2.12

2.40

2.31

1.46

1.92

2.12

Range

(0.3–10)

(1.0–5.1)

(0.0–8.0)

(0.2–8.8)

(0.0–9.3)

(0.0–4.7)

(0.0–7.5)

(0.0–6.7)

% Reduction4

 

53.6

58.9

56.6

60.6

80.9

76.2

76.5

  1. 1In the fluralaner group cats were treated once topically on day 0 (Bravecto® Topical solution; Merck Animal Health, Madison, NJ, USA)
  2. 2In the selamectin group cats were treated on day 0 and once between days 28–30 and 56–60 (Revolution®; Zoetis, Whippany, NJ, USA)
  3. 3Arithmetic mean pruritus scores as assessed by cat owners using a PVAS scoring sheet
  4. 4{(Day 0 arithmetic mean PVAS score – day x arithmetic mean PVAS score) / day 0 arithmetic mean PVAS score)} × 100
  5. a,bArithmetic mean PVAS scores in a column with unlike letter superscripts are significantly different (P < 0.005; │t│ ≥ 2.882)
  6. x,yArithmetic mean PVAS scores in a row with unlike letter superscripts are significantly different from day 0 (P < 0.001; │t│≥ 8.680)