Table 2 Weighted prevalence of moderate/severe anaemia (< 8 g/dl) in children aged 1–5 years and weighted parasitaemia and risk of infection compared to baseline by year, in children aged 1–14 years
Year of survey | No of children aged 1–5 tested for anaemia | % of children aged 1–5 years with severe anaemia [%, 95% CIs] | No. of children (aged 1–14 years) tested for parasitaemia | Parasite prevalence (%, 95% CI) | Crude odds ratio [95% CI] | Crude odds ratio (using previous year as baseline) |
|---|---|---|---|---|---|---|
2004 | 1129 | 14.9 [12.3, 18.0] | 2525 | 43.3 [37.5, 49.3] | 1 | – |
2005 | 1648 | 9.4 [7.0, 12.6] | 3435 | 29.7 [23.4, 36.9] | 0.55 [0.44,0.70] | 0.55 [0.44,0.70] |
2006 | 2297 | 6.8 [5.4, 8.6] | 5356 | 26.8 [22.9, 31.2] | 0.48 [0.34,0.67] | 0.87 [0.63-1.19] |
2007 | 2130 | 7.3 [5.5, 9.8] | 4472 | 29.2 [24.9, 33.8] | 0.54 [0.44,0.66] | 1.12 [0.84-1.50] |
2008 | 2166 | 1.9 [1.6, 2.3] | 4403 | 19.0 [16.1, 22.4] | 0.31 [0.22,0.44] | 0.57 [0.41-0.79] |
2009 | 2697 | 2.7[1.8, 3.9] | 5774 | 21.3 [14.8, 29.8] | 0.36 [0.24, 0.52] | 1.15 [0.73–1.81] |
2010 | 3403 | 2.8 [2.2, 3.6] | 7402 | 24.4 [18.5, 31.5] | 0.42 [0.32, 0.57] | 1.19 [0.96–1.48] |
2011 | 2931 | 2.9 [2.2, 3.9] | 6155 | 18.9 [13.9, 25.2] | 0.31 [0.25, 0.38] | 0.72 [0.54–0.97] |
2012 | 3003 | 2.7 [2.2, 3.3] | 6511 | 12.7 [10.1, 15.9] | 0.19 [0.16, 0.23] | 0.62 [0.51–77] |
2013 | 3379 | 3.3 [2.6, 4.3] | 7137 | 27.5 [20.8, 35.5] | 0.50 [0.39, 0.64] | 2.61 [2.18–3.13] |
2014 | 3543 | 2.6 [2.1, 3.4] | 8253 | 17.0 [13.8, 20.8] | 0.27 [0.21, 0.34] | 0.54 [0.43–0.68] |
2015 | 1866 | 1.5 [1.0, 2.1] | 4013 | 13.8 [10.7, 17.7] | 0.21 [0.15, 0.28] | 0.78 [0.61–1.00] |
2016 | 1505 | 1.6 [0.9, 2.6] | 3411 | 10.5 [8.8, 12.5] | 0.15 [0.12, 0.20] | 0.73 [0.58–0.92] |