Table 5.

Mean body weight (kg) in Tromsø 6 (2007–2008), Tromsø 7 (2015–2016) and change in weight

Age 2007, years	N	Tromsø 6		Tromsø 7		Change between Tromsø 6 and Tromsø 7
		Mean weight	SD	Mean weight	SD	Mean weight	95% CI*
Women
35–39	123	70.8	12.5	73.9	12.9	3.1	1.9 to 4.4
40–44	955	70.6	13.2	73.6	14.2	3.0	2.6 to 3.4
45–49	502	71.8	13.6	74.0	14.3	2.2	1.7 to 2.8
50–54	533	69.5	11.4	71.2	12.3	1.7	1.3 to 2.1
55–59	486	70.9	12.8	71.6	13.3	0.7	0.3 to 1.2
60–64	953	72.4	12.4	72.7	13.0	0.3	−0.0 to 0.6
65–69	562	71.0	13.1	70.3	13.0	−0.6	−1.1 to 0.2
70–74	301	69.8	12.0	68.7	12.4	−1.1	−1.7 to 0.5
75–79	165	69.7	12.3	67.9	12.9	−1.8	−2.6 to 1.0
All women	4580	71.0	12.7	72.1	13.4	1.1	0.9 to 1.2
Men
35–39	92	90.4	13.3	93.2	15.5	2.9	1.6 to 4.1
40–44	774	87.4	13.5	89.7	14.6	2.3	1.8 to 2.7
45–49	452	86.9	12.8	88.9	13.8	2.0	1.5 to 2.5
50–54	412	86.8	12.1	87.7	13.1	0.9	0.4 to 1.4
55–59	467	86.2	13.1	86.8	13.1	0.5	0.0 to 1.0
60–64	848	86.4	12.6	86.6	12.8	0.1	−0.2 to 0.5
65–69	571	84.5	12.1	84.1	13.0	−0.4	−0.9 to 0.0
70–74	291	81.6	11.5	80.5	11.8	−1.1	−1.7 to 0.6
75–79	105	79.8	10.3	78.5	12.2	−1.3	−2.4 to 0.2
All men	4012	86.0	12.8	86.7	13.7	0.7	0.6 to 0.9

The Tromsø study.

*CI based on the paired t-statistic.