Effects of health intervention programs and arsenic exposure on child mortality from acute lower respiratory infections in rural Bangladesh

Table 4 Results of cluster analyses

	Observed deaths	Expected deaths	Radius (km)	Relative risk	Likelihood ratio	p value
Unadjusted (Fig. 4)
Cluster 1	141	229.9	5.4	0.53	26.4	0.000
Cluster 2	259	197.8	3.5	1.45	11.8	0.051
Unadjusted, max size ≤10 % of population at risk (Fig. 5)
Cluster 1	36	77.8	2.8	0.44	15.2	0.002
Cluster 2	0	14.3	0.9	0.00	14.4	0.003
Cluster 3	96	58.0	1.5	1.74	11.3	0.061
Treatment area adjusted (Fig. 6)
Cluster 1	22	52.0	1.3	0.41	11.6	0.046
Model adjusted (no figure)
	No statistically significant clusters found

Spatial cluster analysis of childhood deaths from acute lower respiratory infections (ALRI) in Matlab, Bangladesh, 1989–1996. Results are from the spatial scan statistic implemented in SaTScan and include only statistically significant clusters at the α = 0.1 level

ISSN: 1476-072X