Table 3.

Age-specific cumulative survival and incidence of all-cause morbidity and mortality in calves under six months in Jimma town

Age interval (days)	Number at risk	Events	Number censored		Survival prob. (SE)	Hazard (95%CI)	Cum. Incidence (95% CI)
Morbidity
0–30	235	17	20	0.92 (0.02)		0.07(0.04, 0.11)	0.07(0.04,0.11)
30–60	198	15	54	0.84 (0.03)		0.09(0.04, 0.12)	0.15(0.11,0.20)
60–90	129	5	42	0.80 (0.03)		0.04(0.01,0.09)	0.21(0.15,0.28)
90–120	82	13	29	0.65 (0.05)		0.16(0.08,0.27)	0.34(0.26,0.43)
120–150	40	3	21	0.58 (0.05)		0.07(0.01,0.22)	0.42(0.30,0.53)
150–180	16	0	14	0.58 (0.05)		0.00(0.00,0.23)	0.42(0.30,0.53)
180-	2	0	2	0.58 (0.05)		0.00(0.00,0.23)	0.42(0.03,0.53)
Mortality
0–30	235	6	18		0.97(0.01)	0.02(0.01,0.05)	0.03(0.01,0.05)
30–60	211	5	58		0.95(0.02)	0.03(0.01,0.05)	0.05(0.03,0.09)
60–90	148	1	53		0.94(0.02)	0.01(0.00,0.04)	0.06(0.03,0.10)
90–120	94	1	41		0.93(0.02)	0.01(0.00,0.06)	0.07(0.04,0.13)
120–150	52	2	30		0.88(0.04)	0.04(0.005,0.14)	0.12(0.06,0.25)
150–180	20	0	18		0.88(0.04)	0.00(0.00,0.18)	0.12(0.06,0.25)
180-	2	0	2		0.88(0.04)	0.00(0.00,1.84)	0.12(0.06,0.25)

^{SE= standard error of estimate, CI= confidence interval}