In summary, lameness significantly decreased the hazard of pregnancy and increased the hazard of culling/death.
If the coefficient β is negative, HR= exp(β < 0) < 1, then one unit increase in variable X decreases the hazard by 1−HR and increases the duration.
Importantly, tighter US migration policies have an ambiguous effect on the optimal migration duration while longer distances decrease the hazard of return to their state of origin.
In this whole modification process, no more solvent and chemicals are involved, which simplifies the modification process, reduces the preparation cost, and decreases the hazard to environment.
In Table 5 column (1), one more year of schooling decreases the hazard rate (possibility of return) by 8.48 %.20. Figure 1 shows the relationship between the hazard of returning and years of schooling, which is a U-shaped graph.
In column (1), one more child under 18 traveling decreases the hazard of returning by 23.5%% (100−76.50 %), holding other variables constant, while one more child under 18 waiting in Mexico increases it by 2.33%% (102.33−100 %).
Increases in the total present value of the flow of pensions that a person will receive from the year she retires to the year she dies (increases in SSW) increases the hazard while an increase in the difference of this amount from postponing retirement, SSA, decreases the hazard.
After adjusting for age, race and number of previous events, having some high school education versus none marginally decreased the hazard for probation recidivism and having > 5 inpatient psychiatric admissions versus none increased the hazard of probation recidivism 7-fold (HR 7.49, 95% CI 1.33 42.12, p = 0.022).
In Table 4 column (1), one more year of schooling decreases the hazard rate (possibility of return) by 5.35 %.19 In addition, having illegal migrants as the benchmark, green card holders or citizens in the USA are expected to stay longer in the USA, because they have gotten the necessary certification to stay legally in the USA as long as they want.
