TABLE I. Association of cluster-groups and social networks.

Groupa	Level of medical attention
	Clinics of familiar medicine	Zonal general hospitals	Municipality
	Spearman’s correlation
	SMR	0.033	0.166	0.013
SR	NCb	NC	NC
SM	0.677	0.256	0.380
S	0.078	0.105	0.316
M	0.779	0.559	0.261

^a: groups of clusters having comparable codes;

^b: not computable (NC) because these groups were constituted just by one cluster having two cases. Capitals correspond to groups of clusters showing comparable codes of spoligotyping (S), mycobacterial interspersed repetitive units-variable number tandem repeats (M) or restriction fragment length polymorphism-IS6110 (R). Bold numbers indicate statistical significance (p ≤ 0.05).