## Abstract An analysis is undertaken of the frequency of ovulation in 17 groups of women aged 15 to 19 who had been the subjects of other studies. A urine specimen of at least 8 h accumulation had been provided on the 20th or 21st day of a menstrual cycle by 681 women. Analysis is restricted to 43
Age of menarche, birthweight and risk of cancer
β Scribed by L. Berstein
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- French
- Weight
- 12 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0020-7136
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Age at menarche is one of the few established risk factors for breast cancer; identification of its exogenous determinants could throw light on the origins of breast cancer. We have undertaken an epidemiologic study in Greece to ascertain whether: I ) energy intake, an indicator of physical activity
Dear Sir, Few recognized factors have been associated with childhood cancer. Research has focused on the more common childhood cancers such as leukemia, whereby positive 2-10 and negative associations with birthweight have been found. Other childhood cancers have also been studied with mixed results
## Abstract Early age at menarche and tallness are associated with increased risk for breast cancer, and emerging evidence suggests that body size at birth also is positively associated with breast cancer risk in adulthood. We have explored whether this effect of birth size could be mediated by inf