Table 19. Ability to maintain a pregnancy as affected by age of female partner^*

Wife's Age, y   Patients With Assessment of Pregnancy Outcome   Patients Establishing a Pregnancy   %   Patients With Live Births   %   <30   544   499   91.7   476   95.4   30 to <35   446   390   87.4   365   93.6   35 to <40   215   165   76.7   146   88.5   40   61   33   54.1   27   81.8   All ages   1266   1087   85.9   1014   93.3   Probability       P < .0001     P < .0001   *Statistical analysis: the ability to establish a pregnancy is affected by the age of the female partner. Chi square test: P < .0001. Age of the female partner also affects the percentage of pregnancies maintained. Chi square test: P < .0001