Distance to Health Care Facilities, Lifestyle Risk Factors, and Stage at Diagnosis in relation to Geographic Pattern of Esophageal Cancer in Tanzania, 2006–2016

Table 6

Poisson regressions for the association between prevalence of etiologic risk factors for esophageal cancer and incidence rate.

Risk factor prevalence and incidence rate multiple linear regressions	Degrees of freedom	Parameter estimate	95% confidence limit	value
Regional risk factors/incidence rate	16
Tobacco use		0.99	(0.78, 1.27)	0.95
Unprotected water use		1.15	(0.97, 1.36)	0.10
Solid fuel source use		0.87	(0.61, 1.23)	0.44
Incidence of poverty		0.66	(0.54, 0.79)	<0.01
Zonal risk factors/incidence rate	3
Tobacco use		0.84	(0.58, 1.22)	0.38
Unprotected water use		1.32	(0.94, 1.86)	0.10
Solid fuel source use		0.68	(0.36, 1.26)	0.22
Poverty		0.57	(0.41, 0.78)	<0.01

value is significant at 0.05.