Table 1 Age-standardised distribution of demographic characteristics among 71 751 women according to birthweight throughout follow-up 1976–2004 (N=1 678 702 person-years)
From: Longitudinal study on birthweight and the incidence of endometrial cancer
Birthweight (g) | ||||
|---|---|---|---|---|
Demographic characteristics | <2500 | 2500–<3182 | 3182–<3863 | ⩾3863 |
Family history of endometrial cancer (%) | 3.4 | 2.9 | 3.0 | 3.7 |
Premature birth (%) | 35.6 | 2.9 | 0.7 | 0.3 |
First born (%) | 40.6 | 39.2 | 37.9 | 29.1 |
Breast fed (%) | 42.4 | 52.0 | 57.0 | 62.3 |
Age at menarche (mean) (years) | 12.4 | 12.4 | 12.4 | 12.5 |
BMI at age 18 (Mean) (kg m−2) | 21.1 | 21.0 | 21.5 | 21.9 |
Height (Mean) (cm) | 162 | 163 | 165 | 166 |
Nulliparous (%) | 7.0 | 6.9 | 6.4 | 7.5 |
Mean number of children among parous women | 3.2 | 3.2 | 3.2 | 3.2 |
Premenopausal (%) | 35.3 | 35.9 | 36.2 | 35.7 |
Ever smoked (%) | 54.3 | 54.8 | 56.1 | 58.9 |
Current BMI (Mean) (kg m−2) | 25.3 | 25.0 | 25.5 | 25.8 |
