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 7

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

Risk factor prevalence and incidence rate multiple linear regressions	Degrees of freedom	Parameter estimate	Wald 95% confidence limit	Wald-chi-square	-value
Regional risk factors/incidence rate	13
Tobacco use		-0.0436	(-0.1774, 0.0903)	0.53	0.5236
Unprotected water use		-0.0102	(-0.1086, 0.0882)	0.41	0.8385
Solid fuel source use		0.0862	(-0.1116, 0.2840)	0.04	0.3932
Poverty		-0.1029	(-0.2414, 0.0356)	0.73	0.1452
Hospitals		0.0321	(-0.1825, 0.2468)	2.12	0.7692
Distance (km)		-0.0074	(-0.0108, -0.0040)	0.09	<0.0001

value is significant at 0.05.