***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: Forty-nine trials involving 8763 women were included. The data were combined to calculate hazard ratios (HR) for survival on an intention-to-treat basis. For single non-platinum versus platinum combination chemotherapy the overall HR for survival was 0.93, 95% confidence interval (CI) 0.83 to1.05 favouring platinum-based combination chemotherapy. For non-platinum regimens compared with the same regimen plus cisplatin the survival HR was 0.88, 95% CI 0.79 to 0.98 in favour of adding platinum to drug regimens. Single platinum compared with platinum combination gave a HR of 0.91, 95% CI 0.79 to 1.05 favouring combination chemotherapy. Cisplatin versus carboplatin gave a HR of 1.02, 95% CI 0.93 to 1.12. Sub-group analyses for age, stage, grade, histology, resection, bulk of residual tumour and performance status were undertaken for cisplatin versus carboplatin only. No difference in effect was found. Available evidence, although not conclusive, suggests platinum-based chemotherapy is better than non-platinum therapy. There is some evidence that combination therapy improves survival compared with platinum alone. No difference in effect has been shown between cisplatin and carboplatin.
Output:

This review found a small benefit in platinum-based chemotherapy over non-platinum therapy. It also found that platinum combinations may offer improved survival over single platinum and that cisplatin and carboplatin are equally effective. The trials were done when paclitaxel (an effective new drug) was not used routinely. The results therefore, will need to be looked at in the light of new evidence from paclitaxel trials.