Table 2 The body composition by age and education in men.

From: Fat free mass and obesity in relation to educational level

		Level of education
		Low			Middle			High
Measurement	Age Group	n	mean	s.d.	n	mean	s.d.	n	mean	s.d.	p-value
Body mass index, kg/m ²
	30-64	703	27.3	4.4	972	27.1	4.0	633	26.7	4.1	0.03
	65+	394	27.2	4.1	106	27.0	3.9	54	26.9	2.9	0.90
	30+	1 097	27.3	4.3	1 078	27.1	4.0	687	26.7	4.0	0.02
Waist-to-hip ratio
	30-64	702	0.98	0.06	967	0.97	0.06	630	0.96	0.06	<0.001
	65+	389	0.98	0.05	104	0.97	0.05	54	0.98	0.06	0.21
	30+	1 091	0.98	0.06	1 071	0.97	0.06	684	0.96	0.06	<0.001
Fat-free mass, kg
	30-64	664	65.8	8.7	929	66.2	8.6	609	66.4	8.0	0.43
	65+	338	57.6	8.1	88	60.0	7.2	47	59.4	7.2	0.02
	30+	1 002	64.3	9.3	1 017	65.0	8.6	656	65.1	8.2	0.11

The mean values are adjusted for age (as a continuous variable) within each age group.

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