Table 5. The result of spatial-temporal analysis of new detected leprosy cases in Yunnan, China, 2011–2020.

Cluster Type	Number of Clustering areas	Observed cases	Expected cases	Relative risk	Log likelihood ratio	P value	Time frame
Primary cluster	11	363	84.887	5.047	271.750	0.000	2011/01/01-2015/12/31
Secondary cluster	4	93	19.915	4.858	71.672	0.000	2015/01/01-2019/12/31
Tertiary cluster	11	107	45.360	2.440	31.219	0.000	2011/01/01-2014/12/31
Quaternary cluster	2	18	4.863	3.727	10.464	0.065	2011/01/01-2012/12/31