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. 2023 Nov 28;19:249. doi: 10.1186/s12917-023-03815-w

Table 7.

Multivariable mixed-effect Cox proportional hazard regression analysis of explanatory variables associated with the incidence of mortality in calves under six months of age in Jimma town

Variables Levels HR (95%CI) P-value
Dam parity Multiparous 1 0.007
Primiparous 9.60 (1.86–49.48)
Pen cleaning Regularly 1 0.04
Infrequently 7.97 (1.04–60.89)
Calving status Normal 1 0.005
Dystocia 17.23 (2.41-123.31)
Floor type Concrete 1 0.001
Soil 153.54 (6.91-3410.85

 h*= Hazard ratio, CI= confidence interval, hr.= hour, NA= not applicable