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Table 4 Comparison of the two ultrasound comb-treated groups for the presence of lice, presence of louse egg/nits, and mean numbers of lice and louse eggs/nits recovered

From: Neem-silicone lotion and ultrasound nit comb: a randomised, controlled clinical trial treating head louse infestation

Endpoint

Treatment

Day of study

Lotion

0

2

6

7

9

14

Presence of live lice

NNC

94.1%

35.3%

41.2%

32.7%

11.8%

17.7%

ONC

85.7%

64.3%

71.4%

21.2%

50.0%

71.4%*

Total lice

NNC

20.9

2.12

2.06

0.90

0.12

0.35

ONC

28.4

4.93

11.86

0.42

1.79**

5.93

Adult males

NNC

1.69

0.53

0.06

0.38

0.0

0.06

ONC

2.25

0.29

0.79

0.33

0.07

0.86

Adult females

NNC

2.69

0.65

0.18

0.06

0.0

0.18

ONC

3.50

0.86

1.21

0.75

0.14

1.79

Stage 3 nymphs

NNC

3.31

0.59

0.18

0.13

0.0

0.12

ONC

3.33

0.29

1.71**

1.67

0.29

1.00**

Stage 2 nymphs

NNC

6.00

0.18

0.59

1.81

0.06

0.0

ONC

4.33

1.14

3.07**

6.17

1.00

1.21

Stage 1 nymphs

NNC

7.25

0.18

1.06

5.94

0.06

0.0

ONC

13.7

2.36

5.07***

12.8

0.29

1.07

Presence of eggs/nits

NNC

94.1%

82.4%

ONC

71.4%

78.6%

Number of eggs/nits

NNC

13.25

19.80

ONC

181.83

124.20

  1. Mean figures should only be taken as indicative due to the skew distribution of the data
  2. Day 0 and Day 7 treatment days, Days 2, 6, 9, and 14 assessment days only
  3. ***Significant difference at p < 0.005, **significant difference at p < 0.05, *near significant difference at p = 0.05