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Table 3 Success rate for NNC and IPM/C by demographic characteristics subgroup

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

Subgroup   NNC IPM/C  
n/N % n/N % p value
All participants   36/50 72.0 37/53 69.8 NS
Sex Males 10/12 83.3 6/10 60.0 NS
Females 26/38 68.4 31/43 72.1 NS
Age 2 to 6 7/12 58.3 9/11 81.8 NS
7 to 9 11/19 57.9 11/15 73.3 NS
10 to 16 7/8 87.5 10/16 62.5 NS
> 16 11/11 100 9/11 81.8 NS
Infestationa Light 26/33 78.8 27/31 87.1b NS
Moderate 6/10 60.0 5/11 45.5b NS
Heavy 2/4 50.0 5/8 62.5 NS
Hair length Close cut 1/1 100.0 2/2 100 NS
Above ears 9/11 81.8 4/6 66.7 NS
Ears to shoulders 7/11 63.6 10/13 76.9 NS
Below shoulders 19/27 70.4 22/32 68.8 NS
Hair thickness Fine 6/7 85.7 7/9 77.8 NS
Medium 21/29 72.4 17/19 89.5 NS
Thick 9/14 64.3 14/25 65.0 NS
Hair curl Straight 21/31 67.7 21/38 55.3 NS
Wavy or curly 15/19 78.9 13/15 86.7 NS
Hair type Normal 34/49 69.4 37/51 72.6 NS
Dry or oily 0/1 0.0 1/2 50.0 NS
Other family member in study No 8/10 80.0 7/9 77.8 NS
Yes 26/40 65.0 30/44 68.2 NS
  1. aData missing from three participants in each of the treatment groups
  2. bThere was a significant difference in efficacy rates between “light” and “moderate” infestations given this treatment