National Assembly for Wales
Children and Young People Committee
CO 42
Inquiry into Childhood Obesity
Evidence from : Public Health Wales
The following table describes the relative risks for some diseases in obese individuals: obesity confers a several hundred percent greater absolute risk for some already common diseases.
The next table describes the ‘Population Attributable Fraction’ of obesity in some common diseases – ie the proportion of each disease which could be prevented if obesity was eliminated. Obviously elimination of obesity is unrealistic, but as the relationship between obesity and disease risk is generally proportional it does suggest that substantial reductions in the burden of disease could be made with reductions in obesity:
|
Population Attributable Fraction |
Population Attributable Fraction |
Disease |
Men (% ) |
Women (% ) |
Angina pectoris |
15.0 |
17.2 |
Colon cancer |
30.6 |
30.7 |
Gall bladder diseases |
15.0 |
17.2 |
Hypertension |
26.0 |
45.4 |
Myocardial infarction |
9.9 |
36.6 |
Osteoarthritis |
16.5 |
9.4 |
Ovarian cancer |
n/a |
15.4 |
Stroke |
6.2 |
7.2 |
Type 2 Diabetes |
48.0 |
75.3 |
The cost of obesity to the NHS in Wales has been documented in a 2011 report for Welsh Government [1] . Obesity was estimated to cost the NHS in Wales over £73 million per annum, with hospitalisation costs at around £3.5 million per annum. Assuming costs for ABHB residents are pro rata for population (although obesity rates in ABHB are slightly higher than the all Wales levels), the overall costs to the NHS for obesity in ABHB is around £14.6 million, and for hospitalisation in ABHB residents is around £700,000.
Being overweight or obese in childhood has negative consequences for health in both the short term and the longer term. Although many of the most serious consequences may not become apparent until adulthood, the effects of obesity can be identified in obese children and adolescents. For example, type 2 diabetes, previously considered an adult disease, has increased in overweight children. Other health risks of childhood obesity include early puberty, eating disorders such as anorexia and bulimia, skin infections, asthma and other respiratory problems. Some musculoskeletal disorders are also more common, including slipped capital femoral epiphysis (SCFE) and tibia vara (Blount disease).
In addition to the physical harms to children, the emotional and psychological effects of bei