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Table 3 Spatial distribution of smear-positive PTB in districts of Arsi Zone during February 2016, and August 2016, at Asella Hospital, Arsi Zone, Oromia Region, Ethiopia (n = 119)

From: Spatial clustering and genetic diversity of Mycobacterium tuberculosis isolate among pulmonary tuberculosis suspected patients, Arsi Zone, Ethiopia

Cluster type

Lists of districts within the cluster

Number of observed cases

Number of expected cases

RR (95% CI)

Loglikelihood Ratio

P value

High rate most likely cluster

Amigna, Shirka, Bale Gesger, Seru, Sude, Chole, Diksis, Jeju, Tena, Robe

38

20.39

2.27 (1.62, 3.2)

9.359710

0.00069

Most likely secondary cluster

Digaluna Tijo, Tiyo

44

36.86

1.43 (0.95, 2.16)

1.450177

0.57

Low rate most likely cluster

Lode Hetossa

1

4.92

0.20 (0.03, 1.37)

2.655211

0.291