. Author manuscript; available in PMC: 2016 Apr 4.

Published in final edited form as: J Magn Reson Imaging. 2015 Jul 22;43(2):398–406. doi: 10.1002/jmri.25006

TABLE 1.

Ranges, Means, and Standard Deviations of Subject Age, MRS PDFF, and BMI

Group	Subjects number (%)	Age (yrs) range (mean ± SD)	MRS PDFF (%) range (mean ± SD)	Subjects with recorded BMI number (%)	BMI (kg/m²) range (mean ± SD)
Total	506 (100)	20–92	0.1–38.3	489 (97)	15.6–51.6
		(49.2 ± 14.0)	(10.1 ± 8.6)		(30.0 ± 6.2)
Male	267 (53)	20–92	0.1–34.2	254 (95)	15.6–42.5
		(49.0 ± 13.8)	(9.5 ± 8.5)		(29.1 ± 5.0)
Female	239 (47)	21–82	0.3–38.3	235 (98)	16.7–51.6
		(49.4 ± 14.1)	(10.7 ± 8.7)		(31.0 ± 7.1)

PDFF = proton density fat fraction, BMI = body mass index, SD = standard deviation, MRS = magnetic resonance spectroscopy.