Table 3

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 5 (2001) according to age groups and gender

BMI
Men (N=3418)Women (N=4476)
AgenMean (SD)Per cent <20Per cent ≥30nMean (SD)Per cent <20Per cent ≥30
30–3423226.3 (4.0)0.416.831124.6 (4.3)7.710.9
35–394525.4 (3.1)2.26.77325.5 (4.6)5.513.7
40–4430326.7 (3.7)1.015.837325.0 (4.4)5.610.5
45–4929226.9 (3.7)0.718.536225.1 (3.8)3.69.4
50–5414328.0 (3.9)0.023.89225.5 (3.8)3.313.0
55–5921927.7 (3.5)1.822.462127.1 (4.9)4.022.4
60–6464927.4 (3.4)0.820.881526.7 (4.8)3.921.8
65–6957826.7 (3.4)1.616.662426.9 (4.6)5.120.8
70–7448426.3 (3.5)3.513.858727.0 (4.8)4.924.4
75–7936625.9 (3.5)5.012.846727.2 (4.6)5.126.6
80–8910725.8 (4.1)6.516.814227.0 (4.1)4.225.4
Total341826.7 (3.6)1.817.3446726.4 (4.6)4.819.7