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Table 1 Indoor host-seeking density using light trap catches and incidence rate ratios in intervention and control groups of Anopheles arabiensis in Adami Tullu, Ethiopia

From: Impact of combining indoor residual spraying and long-lasting insecticidal nets on Anopheles arabiensis in Ethiopia: results from a cluster randomized controlled trial

Study arms Person-night catch Mean density (95% CI) IRR (95% CI) P value
a) Control arm is the reference group
 Control 592 1.11 (0.89–1.38)   
 IRS 592 0.03 (0.01–0.08) 0.031 (0.012–0.076) < 0.001
 LLIN 592 0.09 (0.05–0.15) 0.096 (0.060–0.153) < 0.001
 IRS + LLIN 592 0.03 (0.01–0.08) 0.031 (0.012–0.076) < 0.001
b) IRS + LLIN arm is the reference group
 IRS + LLIN 444 0.03 (0.01–0.08)   
 IRS 444 0.03 (0.01–0.08) 1.424 (0.284–3.525) 1.000
 LLIN 444 0.09 (0.05–0.15) 2.601 (0.903–7.478) 0.076
  1. IRS indoor residual spray, LLIN long-lasting insecticidal nets, LTC light trap catch