From: Assessment of malaria risk in Southeast Asia: a systematic review
Approaches
Number of studies
References
Odds ratio and a relative risk
10
[9, 11, 13, 15, 19, 22, 25,26,27, 33]
Correlation, regression, or other coefficients
8
[12, 16, 18, 20, 21, 23, 24, 30]
Others
7
 The report of malaria prevalence
3
[10, 14, 17]
 The distribution of mosquitoes
2
[31, 32]
 The relative importance index (RI)
1
[28]
 The mean density of biting rate
[29]