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Alongside the risk to women who are overweight or obese, the researchers also warned that there are higher occurrences of successive miscarriages among those people who are underweight, with a BMI score of less than 18.5.
Alongside BMI, the team also set out to assess the impact of other factors — including smoking habits and levels of alcohol and caffeine consumption.
However, this endeavour was complicated by the inconsistencies of results from a small number of studies — as well as the limited diversity of women enrolled to participate in such.
‘Our study did not find any associations between recurrent pregnancy loss and lifestyle parameters such as smoking, alcohol and caffeine intake,' said paper author, and obstetrician/gynaecologist George Cherian of the Princess Anne Hospital.