If pregnant women are infected with herpes virus, especially pregnant women are infected with the virus first, then place abortion, premature birth, stillbirth probability will be very high.
Controlling for other factors, the arrival of Globo was associated with a decline of 0.6 percentage points in the probability of a woman giving birth in a given year.
在控制其它因素影响的情况下，Globo电视使得当年妇女的生育概率降低了0.6个百分点。
3
By using the Quasi-Birth-Death process and the matrix geometric solution, we obtain the equilibrium conditions of the system and the steady-state probability distribution.