Volume 22, Number 8—August 2016
Research
Microgeographic Heterogeneity of Border Malaria During Elimination Phase, Yunnan Province, China, 2011–2013
Table
Measurement of heterogeneous distribution of confirmed township-level malaria incidence rate, Yunnan Province, China, January 2011–December 2013
Parameter | Year of surveillance |
||
---|---|---|---|
2011 | 2012 | 2013 | |
No. townships with confirmed malaria* | 33 | 27 | 19 |
No. malaria cases |
170 |
144 |
149 |
Incidence rate† | |||
Mean (95% CI) | 17.9 (8.2–27.6) | 29.1 (0–68.3) | 31.7 (0–71.3) |
Median | 5.4 | 0 | 0 |
Range | 200 | 1133.3 | 1133.3 |
Kurtosis | 14.3 | 55.2 | 52.6 |
Skewness | 3.6 | 7.4 | 7.1 |
Coefficient of variation | 205.6 | 513.9 | 475.3 |
*Significant differences (p<0.05) were determined by χ2 test. The differences between 2001 and 2012 and between 2012 and 2013 were not significant; however, the difference between 2011 and 2013 was significant.
†Cases/100,000 population/year.
1These authors contributed equally to this article.
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