***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: Four trials (2300 women) are included. The interventions ranged from brief advice through to education on health and lifestyle over several sessions. For most outcomes, data were only available from individual studies. Only one study followed up through pregnancy and there was no strong evidence of a difference between groups for preterm birth, congenital anomalies or weight for gestational age; only one finding (mean birthweight) reached statistical significance (mean difference -97.00, 95% confidence interval (CI) -168.05 to -25.95). This finding needs to be interpreted with caution as pregnancy outcome data were available for only half of the women randomised. There was some evidence that health promotion interventions were associated with positive maternal behavioural change including lower rates of binge drinking (risk ratio 1.24, 95% CI 1.06 to 1.44). Overall, there has been little research in this area and there is a lack of evidence on the effects of pre-pregnancy health promotion on pregnancy outcomes. There is little evidence on the effects of pre-pregnancy health promotion and much more research is needed in this area. There is currently insufficient evidence to recommend the widespread implementation of routine pre-pregnancy health promotion for women of childbearing age, either in the general population or between pregnancies.
Output:

The review looks at randomised controlled trials examining routine health promotion before pregnancy to see whether it changes behaviour and leads to improved health for mothers and babies. Four trials with 2300 women provided information for the review. The health promotion offered to women in these studies ranged from very brief advice on a specific topic through to more general advice and education on health and lifestyle over several sessions. In only one study were women followed up through pregnancy and there was little evidence of any differences between groups, although the babies of women who had received the health promotion intervention had slightly lower birthweights. There was some evidence that health promotion interventions encourage women to have more healthy lifestyles, such as lower rates of binge drinking. Overall, there was little evidence on the effects of pre-pregnancy health promotion on the health of mothers and babies, and more evidence is needed before its widespread implementation can be recommended.