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Table 4 Change of annual parasite incidence rate ratios based on Chinese information system for disease control and prevention across 19 counties of Yunnan Province, China, from 2006 to 2013

From: Malaria control along China-Myanmar Border during 2007–2013: an integrated impact evaluation

Years (n = person-years] Vivax malaria Falciparum malaria All confirmed malaria
Number of cases Rate ratio (95 % CI] P- value Number of cases Rate ratio (95 % CI] P- value Number of cases Rate ratio (95 % CI] P- value
2006(Baseline, n = 4 521 402) 6 570 Reference 2 197 Reference 8 874 Reference
2007 (n = 4 562 688) 3625 0.55 (0.53–0.57) <0.0001 1 209 0.55 (0.51–0.58) <0.0001 4 847 0.54 (0.52–0.56) <0.0001
2008 (n = 4 603 659) 2235 0.33 (0.32–0.35) <0.0001 665 0.30 (0.27–0.32) <0.0001 2 903 0.32 (0.31–0.34) <0.0001
2009 (n = 4 644 719) 1686 0.25 (0.24–0.26) <0.0001 595 0.26 (0.24–0.29) <0.0001 2 283 0.25 (0.24–0.26) <0.0001
2010 (n = 4 687 896) 1261 0.19 (0.17–0.20) <0.0001 570 0.25 (0.23–0.27) <0.0001 1 833 0.20 (0.19–0.21) <0.0001
2011 (n = 4 729 147) 732 0.11 (0.10–0.11) <0.0001 223 0.10 (0.08–0.11) <0.0001 956 0.10 (0.10–0.11) <0.0001
2012 (n = 4 770 122) 417 0.06 (0.05–0.07) <0.0001 137 0.06 (0.05–0.07) <0.0001 556 0.06 (0.05–0.06) <0.0001
2013 (n = 4 800 944) 342 0.05 (0.04–0.05) <0.0001 81 0.03 (0.03–0.04) <0.0001 423 0.05 (0.04–0.05) <0.0001