Table 2

Mean body mass index (BMI, kg/m2) (SD) and prevalence (%) of low weight (BMI<20 kg/m2) and obesity (BMI≥30 kg/m2) in Tromsø 4 (1994–1995) according to age groups and gender

BMI
Men (N=12 564)Women (N=13 519)
AgeNMean (SD)Per cent <20Per cent ≥30nMean (SD)Per cent <20Per cent ≥30
25–29150624.7 (3.2)3.76.2162923.4 (3.7)14.05.8
30–34153225.0 (3.2)2.77.6166723.4 (3.7)13.15.6
35–39163825.3 (3.1)1.87.4173123.7 (3.7)9.86.1
40–44166525.5 (3.2)2.28.4169324.1 (3.7)8.17.6
45–49158826.2 (3.4)2.012.1163924.9 (4.0)5.910.6
50–54128626.3 (3.2)1.712.6124025.5 (4.3)5.814.4
55–5990826.3 (3.2)1.111.392126.0 (4.4)4.215.9
60–6477326.2 (3.4)2.210.676026.0 (4.4)5.315.9
65–6965725.7 (3.4)2.911.081126.5 (4.7)5.420.1
70–7455325.8 (3.6)5.210.565726.7 (4.6)5.021.8
75–7929525.5 (3.3)5.88.846326.4 (4.6)6.921.6
80–8412324.8 (3.4)6.58.123326.2 (4.3)4.319.7
85–974024.3 (2.9)10.00.07525.9 (4.4)6.714.7
Total12 56425.6 (3.3)2.69.413 51924.7 (4.2)8.311.1