Pattern and Distribution of Colorectal Cancer in Tanzania: A Retrospective Chart Audit at Two National Hospitals

Table 5

Crude and adjusted relative risk of rectal cancer among CRC patients.

Variable	Univariate analysis			Multivariable analysis
	RR	95% CI	value	ARR	95% CI	value
Sex
Male	0.88	0.78, 0.98	0.02480	0.91	0.81, 1.02	0.098
Female	Reference
Age (years)
15–19	0.59	0.32, 1.09	0.0935	0.62	0.34, 1.14	0.1238
20–24	0.58	0.38, 0.89	0.0123	0.59	0.39, 0.91	0.0167
25–29	0.64	0.46, 0.88	0.0069	0.65	0.47, 0.90	0.0088
30–34	0.69	0.52, 0.93	0.0162	0.70	0.52, 0.94	0.0173
35–39	0.73	0.55, 0.98	0.0329	0.74	0.56, 0.97	0.0316
40–44	0.77	0.60, 1.00	0.0477	0.79	0.61, 1.01	0.0608
45–49	0.78	0.60, 1.01	0.0587	0.78	0.61, 1.00	0.0472
50–54	0.84	0.67, 1.06	0.1397	0.83	0.67, 1.04	0.1041
55–59	0.71	0.55, 0.94	0.0149	0.73	0.56, 0.95	0.0212
60–64	0.76	0.60, 0.98	0.0319	0.79	0.62, 1.00	0.0515
65–69	0.68	0.51, 0.92	0.0113	0.69	0.51, 0.92	0.0106
70–74	0.70	0.50, 0.98	0.0351	0.71	0.51, 0.98	0.0358
75–79	0.73	0.52, 1.02	0.0621	0.71	0.51, 0.99	0.0431
80+	Reference
Time (years)	0.97	0.95, 0.99	0.0069	0.97	0.95, 0.99	0.0047