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Kroppsvekt, vektøkning og kreftrisiko hos kvinner

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Based on a graphic created by Cancer Research UK

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Based on a graphic created by Cancer Research UK

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Kroppsvekt - KMI (kg/m²)

Undervekt

< 18.5 Normalvekt

18.5 - 24.9 Overvekt

25.0 - 29.9 Fedme

≥ 30

vekt (kg)

høyde (m) x høyde (m) = KMI

Vektstatus

(6)

<5%

5-9.9%

10-14.9%

15-19.9%

20-24.9%

25+ %

© World Obesity Federation (www.worldobesitydata.org)

Kvinner med fedme (KMI ≥ 30 kg/m²) på

verdensbasis

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Fedme (KMI ≥ 30 kg/m²) i Norge

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Vektøkning

=

>

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2005 2015

Kreft øker i verden

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Bryst 23%

Fordøyelsesorganer 20%

Kvinnelige kjønnsorganer

11%

Åndedrettsorganer 10%

Lymfoid og hematopoetisk vev

7%

Føflekk 7%

Hud eksl. føflekk 7%

Urinveier 5%

Sentralnervesystemet 4%

Skjoldbruskkjertel 2%

Øvrige 4%

15 443

Kreft oppdelt i hovedgrupper 2017

https://sb.kreftregisteret.no/insidens

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13 fedmerelaterte krefttyper

Based on a graphic created by Cancer Research UK

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Hvordan kan fedme forårsake kreft?

1

3

2

Fettceller 4 produserer hormoner

Hormoner

stimulerer celler til å dele seg oftere

Dette øker risikoen for at kreftceller oppstår

… som kan fortsette å dele seg, og skape en svulst

Based on a graphic created by Cancer Research UK

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• Spørreskjema fra 170 000 kvinner i Norge

• Kreftregisteret

2014

Vektendring

1991-92 1998

Kvinner og kreft

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KMI og fedmerelatert kreft

da Silva M, Weiderpass E, Licaj I, Lissner L, Rylander C. Excess body weight, weight gain and obesity- related cancer risk in women in Norway: the Norwegian Women and Cancer study. Br J Cancer. 2018.

KMI, kg/m 2

HR (95% )

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Vektendring og fedmerelatert kreft

da Silva M, Weiderpass E, Licaj I, Lissner L, Rylander C. Excess body weight, weight gain and obesity- related cancer risk in women in Norway: the Norwegian Women and Cancer study. Br J Cancer. 2018.

Vektendring, kg

HR (95% )

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Viktig funn – Bukspyttkjertelkreft

• Vektøkning (≥10 kg) øker risikoen med 91%

• Ikke belegg for at fedme øker eller minsker

risikoen

http://scanpix.no

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© World Obesity Federation (www.obesityday.worldobesity.org)

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© World Obesity Federation (www.worldobesity.org/resources/image-bank)

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Noe å tenke på

Mye er vunnet ved å holde en stabil vekt.

Overvekt og fedme øker risikoen for kreft, men...

… vektøkning øker også risikoen for kreft uansett utgangspunkt (KMI).

1

2

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