Table 1 The correlation analysis of malaria incidence, malaria prevention and control measures
From: Prevention measures and socio-economic development result in a decrease in malaria in Hainan, China
Years | Incidence | Preventive medicine (PM) | Radical treatment (RT) | Insecticides# | |||
|---|---|---|---|---|---|---|---|
(1/10,000) (X0) | No. of PM (X1) | % of PM ( X 2) | No. of RT (X3) | % of finish RT (X4) | Area of IRS(m2) (X5) | No. of ITNs (X6) | |
2001 | 5.95 | 23,202 | 95.78 | 17,162 | 96.6 | 642,031 | 29,717 |
2002 | 6.92 | 27,725 | 96.5 | 28,903 | 93.01 | 0 | 26,669 |
2003 | 7.84 | 20,093 | 95.16 | 26,538 | 97.42 | 988,165 | 31,098 |
2004 | 11.52 | 6,504 | 96.21 | 10,026 | 99.68 | 869,996 | 57,551 |
2005 | 5.46 | 29,239 | 96.69 | 25,109 | 98.65 | 506,935 | 58,624 |
2006 | 4.66 | 122,024 | 93.04 | 44,203 | 98.88 | 1,049,305 | 55,188 |
2007 | 4.09 | 28,646 | 91.3 | 30,263 | 99.05 | 248,425 | 177,742 |
2008 | 2.21 | 30,818 | 94.16 | 55,091 | 98.79 | 1,257 | 162,064 |
2009 | 0.79 | 35,811 | 96.2 | 57,048 | 98.74 | 282,908 | 158,541 |
2010 | 0.09 | 12,850 | 94.15 | 17,571 | 97.89 | 470,701 | 138,548 |
2011 | 0.01 | 7,726 | 98.91 | 4,791 | 97.58 | 262,295 | 71,941 |
2012 | 0 | 415 | 96.26 | 1,143 | 93.16 | 730,452 | 47,356 |
2013 | 0 | 1,132 | 99.76 | 22 | 100 | 117,954 | 19,083 |
Correlation coefficient | 0.7917 | 0.5527 | 0.7000 | 0.5389 | 0.6032 | 0.6592 | |