Characteristics of the study clusters in Muleba region, Tanzania, 2011.

<p>Note: N = number in each category, CI = confidence intervals,</p>1<p>22nd February- 25th March 2011,</p>2<p>27th June- 3rd August 2011,</p>3<p><i>Plasmodium falciparum</i> infection prevalence in children 0.5–14 years old from RDTs,</p>4<p>Households per square Km,</p>5<p>mean altitude of all households mapped in the core surveillance area of the cluster (metres above sea level),</p>6<p>Sprayed in January 2011-Feb 2011 and recorded in survey 1,</p>7<p>Percentage of all residents that slept under an ITN the previous night,</p>8<p>Percentage of households owning ≥1 ITN per 2 residents (universal coverage),</p>9<p>age adjusted. Altitude and housing density were not included in the multivariable model as they were not confounders for the main variables of interest.