How does body weight affect fertility?
www.cancer.org/downloads/STT/Cancer_Statistics_Combined_2007. Ppt
If you are overweight your fertility will be reduced. This is true for both men
and women. It is unclear whether it is the weight that is an independent
factor for women or whether other factors such as polycystic ovary syndrome
(PCOS - Q7.2)
result in both the infertility and excess weight. At the other extreme, if
you are under your ideal weight you are more likely to have anovulation
problems (Q9.17). The Body
Mass Index (BMI) is a ratio used to compare your weight with your height.
The BMI is calculated as indicated in Table 9.1.
Table 9.1 Calculating your Body Mass Index.
BMI = Weight (Kg) / Height (m)2.
Your BMI should be between 20 and 24. If your BMI is less than
20 you are underweight. You should lose weight if your BMI is
between 25 and 29. You are considered to be medically obese if
your BMI is 30 or more and you would be regarded as very obese
if your BMI is greater than 40.
Table 9.1
|
Weight Kg and
(st / lb) |
Height in metres and (ft ins)
|
Height (m2) |
BMI | |
49
(7st 110lb) |
1.63
(5ft 4ins) |
1.632 |
18 (49 / 1.632) | |
61
(9st 9lb) |
1.58
(5ft 2ins) |
1.582 |
24 (61 / 1.582) | |
90
(14st 2lb) |
1.68
(5ft 6ins) |
1.682 |
32 (90 / 1.682) | |
106
(16st 10lb) |
1.55
(5ft 1ins) |
1.552 |
44 (106 / 1.552) |
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