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 |