***TASK***
the task is to simplify the input abstract of a biomedical literature

***INPUT***
the input is the abstract of a biomedical literature

***OUTPUT***
the output is the simplified abstract for the input abstract of a biomedical literature

***DOCUMENTATION***

***EXAMPLES***

Input: The curves for the life-table cumulative pregnancy rates for the Prentif cap and the diaphragm did not differ. However, the Kaplan-Meier six-month cumulative pregnancy rates for the FemCap and the diaphragm were not clinically equivalent. The Prentif cap had more Class I to Class III cervical cytologic conversions than the diaphragm (OR 2.31; 95% CI 1.04 to 5.11). The FemCap trial did not find differences in Papanicolaou smear results between the groups. Fewer Prentif cap users had vaginal ulcerations or lacerations (OR 0.31; 95% CI 0.14 to 0.71) than diaphragm users. Fewer FemCap users had blood in the device (OR 2.29; 95% CI 1.27 to 4.14), but more had urinary tract infections (OR 0.59; 95% CI 0.39 to 0.95). In the FemCap trial, similar proportions of women reported liking their device. However, FemCap users were less likely to use the device alone after the trial (OR 0.47; 95% CI 0.31 to 0.71) or recommend it to a friend (OR 0.48; 95% CI 0.29 to 0.81). The Prentif cap was as effective as its comparison diaphragm in preventing pregnancy, but the FemCap was not. Both cervical caps appear to be medically safe.
Output:

In February 2012, we did a computer search for studies of cervical caps. We wrote to manufacturers and researchers for information about other trials. We included randomized controlled trials that compared a cervical cap with a diaphragm. We found two trials that compared the cervical cap with the diaphragm. Two types of cervical caps were studied: the Prentif cap and the FemCap. The Prentif cap prevented pregnancy as well as the diaphragm, but the FemCap did not. Women who used the Prentif cap had more abnormal changes in the cervix than diaphragm users. The FemCap users did not have more abnormal changes than the diaphragm users. Many women from both groups dropped out early from the two trials. Similar numbers of FemCap users and diaphragm users reported liking their assigned method. The Prentif cap worked as well as the diaphragm to prevent pregnancy. The FemCap did not prevent pregnancy as well as the diaphragm. Both cervical caps appear to be medically safe.