Table 4

Mean body mass index (BMI, kg/m2) (SD) and prevalence (%) of low weight (BMI<20 kg/m2) and obesity (BMI≥30 kg/m2) and in Tromsø 6 (2007–2008) according to age groups and gender

BMI
Men (N=6017)Women (N=6851)
AgenMean (SD)Per cent <20Per cent ≥30nMean (SD)Per cent <20Per cent ≥30
30–349027.2 (4.0)1.118.912125.0 (4.3)7.414.1
35–3912227.9 (4.0)0.027.116225.8 (4.8)6.217.9
40–44107227.1 (3.9)1.020.4127825.9 (4.7)5.217.1
45–4958827.2 (3.7)0.318.061526.3 (4.9)4.120.0
50–5453327.4 (3.9)0.820.166525.9 (4.4)3.813.7
55–5961127.5 (3.7)0.821.361926.2 (4.4)3.218.1
60–64116227.7 (3.6)0.623.4127727.2 (4.8)2.823.2
65–6982427.4 (3.7)1.522.081727.0 (4.6)2.922.0
70–7451026.9 (3.5)1.018.254527.2 (4.7)3.924.0
75–7931526.5 (3.5)1.615.643226.8 (4.5)5.124.1
80–8719026.2 (3.6)3.711.632027.2 (4.4)4.125.3
Total601727.3 (3.7)1.020.4685126.6 (4.7)4.020.2