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Table 2 Non-inferiority of ITC relative to NTC

From: Acceptability of insecticide-treated clothing for malaria prevention among migrant rubber tappers in Myanmar: a cluster-randomized non-inferiority crossover trial

Indicator Distribution 1 Distribution 2 Difference (NTC-ITC) Conclusion of non-inferiority
ITC
Arm 1
(n = 116)
NTC
Arm 2
(n = 111)
ITC
Arm 2
(n = 100)
NTC
Arm 1
(n = 101)
Mean absolute difference* 95% CI
N % N % N % N %
Clothing looks nice 107 97 96 95 92 93 94 95 1.2 [−4.7 to 7.0] Yes
Clothing is pleasant to wear for nighttime work 97 93 84 93 88 98 98 83 −4.7 [−12.2 to 2.8] Yes
Clothing is durable 109 97 104 99 92 100 100 100 −1.0 [−3.8 to 1.9] Yes
Clothing is easy to clean 111 96 106 100 94 96 100 100 4.3 [−1.3 to 10.0] Inconclusive
Clothing reduces mosquito bites 109 97 104 99 93 99 99 90 0.0 [−7.4 to 7.6] Yes
Would recommend clothing to family and friends 112 97 106 100 94 99 100 100 1.0 [−2.1 to 4.2] Yes
Would buy clothing if available in market 112 88 106 94 94 96 100 89 −1.3 [−9.1 to 6.3] Yes
Overall, likes the clothing 112 97 106 99 94 99 100 99 0.0 [−3.1 to 3.3] Yes
  1. Non-inferiority is indicated if the upper 95% CI around the mean difference falls below the pre-defined non-inferiority margin of 10%
  2. * From OLS logistic regression controlling for order and cluster size