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. 2008 Jan 3;126(1):23–28. doi: 10.1590/S1516-31802008000100005

Table 5. Age, body mass index and years since menopause (mean ± standard deviation) according to quantitative ultrasound.

	Quantitative ultrasound			p-value^*
	Low risk (n = 375)	Medium risk (n = 46)	High risk (n = 40)	p-value^*
Age (years)	58.7 ± 8.3	61.4 ± 8.8	70.6 ± 10.2	< 0.001
Body mass index (kg/m²)	29.1 ± 4.9	27.3 ± 4.5	26.9 ± 6.0	0.006
Years since menopause	10.5 ± 9.1	15.2 ± 10.1	21.4 ± 11.6	< 0.001

^*

Analysis of variance (ANOVA) using Brown-Forsythe correction.