. Author manuscript; available in PMC: 2018 Nov 30.

Published in final edited form as: J Bone Miner Res. 2018 Jun 12;33(9):1612–1621. doi: 10.1002/jbmr.3458

Table 3.

Quartiles of Appendicular Lean Mass, Grip Strength, and Muscle Power by Peripheral QCT Parameters: Age, Weight, Height, Site Adjusted

	Appendicular lean mass (kg)
QCT parameters	Q1 20.14 ± 1.27 (n = 197)	Q2 22.85±0.56 (n = 196	Q3 24.82 ± 0.62 (n = 196	Q4 28.52 ± 2.01 (n = 197	p-trend

FN aBMD Tibia 4%	0.776 ± 0.103	0.799 ± 0.128	0.791 ± 0.118	0.803 ± 0.126	0.3033
SSIx (mm³)	1177 ± 323	1283 ± 358	1297 ± 374	1394 ± 430	0.0023
Tibia 33%
PMI (mm⁴)	29357 ± 5565	32093 ± 5720	33333 ± 5815	37461 ± 6867	<0.0001
SSIx (mm³)	1183 ± 183	1261 ± 178	1276 ± 179	1382 ± 215	<0.0001
Cortical thickness (mm)	5.35 ± 0.71	5.54 ± 0.71	5.63 ± 0.65	5.69 ± 0.71	0.0085
Tibia 66%
SSIx (mm³)	2142 ± 316	2296 ± 326	2333 ± 338	2528 ± 361	<0.0001
Cortical thickness (mm)	3.85 ± 0.69	4.00 ± 0.71	4.01 ± 0.72	4.03 ± 0.79	0.2027
Radius 33%
Total CSA (mm²)	134 ± 16	142 ± 18	147 ± 18	155 ± 19	<0.0001
PC (mm)^a	40.89 ± 2.43	42.12 ± 2.64	42.87 ± 2.56	44.04 ± 2.73	<0.0001
CSMI (mm⁴)	1136 ± 248	1276 ± 287	1349 ± 312	1503 ± 344	<0.0001
SSIx (mm³)	189 ± 32	206 ± 37	214 ± 37	230 ± 40	<0.0001
Cortical thickness (mm)	3.18 ± 0.47	3.29 ± 0.53	3.33 ± 0.46	3.39 ± 0.51	0.035
	Grip strength (kg)
QCT parameters	Q1 31.11 ± 3.18 (n = 175)	Q2 38.17 ± 1.61 (n = 218)	Q3 42.88 ± 1.01 (n = 159)	Q4 50.56 ± 4.50 (n = 234)	p-trend

FN aBMD	0.803 ± 0.122	0.776 ± 0.112	0.802 ± 0.115	0.794 ± 0.126	0.0755
Tibia 4%
SSIx (mm³)	1286 ± 375	1245 ± 353	1301 ± 370	1321 ± 399	0.2102
Tibia 33%
PMI (mm⁴)	32916 ± 6399	32688 ± 5619	32414 ± 6311	34050 ± 6674	0.0703
SSIx (mm³)	1263 ± 207	1270 ± 174	1260 ± 194	1303 ± 201	0.1411
Cortical thickness (mm)	5.47 ± 0.75	5.47 ± 0.73	5.60 ± 0.60	5.66 ± 0.68	0.0252
Tibia 66%
SSIx (mm³)	2273 ± 323	2306 ± 330	2301 ± 334	2404 ± 377	0.0045
Cortical thickness (mm)	3.97 ± 0.77	3.96 ± 0.74	3.94 ± 0.72	4.00 ± 0.70	0.8968
Radius 33%
Total CSA (mm²)	140 ± 19	142 ± 17	144 ± 18	150 ± 18	<0.0001
PC (mm)^a	41.83 ± 2.77	42.17 ± 2.52	42.40 ± 2.69	43.37 ± 2.63	<0.0001
CSMI (mm⁴)	1248 ± 310	1272 ± 282	1314 ± 326	1413 ± 310	<0.0001
SSIx (mm³)	200 ± 38	205 ± 35	211 ± 39	222 ± 37	<0.0001
Cortical thickness (mm)	3.21 ± 0.50	3.25 ± 0.48	3.32 ± 0.53	3.40 ± 0.47	0.0033
	Leg power (W)
QCT parameters	Q1 108.4 ± 20.2 (n = 190)	Q2 152.7 ± 11.3 (n = 200)	Q3 192.7 ± 11.8 (n = 195)	Q4 254.8 ± 35.3 (n = 201)	p-trend

FN aBMD	0.789 ± 0.122	0.792 ± 0.120	0.797 ± 0.117	0.790 ± 0.119	0.9173
Tibia 4%
SSIx (mm³)	1262 ± 367	1276 ± 370	1292 ± 384	1323 ± 383	0.5651
Tibia 33%
PMI (mm⁴)	32517 ± 6572	32586 ± 6445	33405 ± 5375	33856 ± 6601	0.2058
SSIx (mm³)	1263 ± 203	1258 ± 197	1289 ± 175	1296 ± 200	0.2178
Cortical thickness (mm)	5.42 ± 0.75	5.55 ± 0.71	5.58 ± 0.69	5.66 ± 0.62	0.0390
Tibia 66%
SSIx (mm³)	2265 ± 341	2308 ± 368	2351 ± 315	2381 ± 352	0.0301
Cortical thickness (mm)	3.91 ± 0.79	3.98 ± 0.71	4.02 ± 0.72	3.98 ± 0.70	0.5767
Radius 33%
Total CSA (mm²)	141 ± 18	144 ± 18	145 ± 18	147 ± 20	0.0797
PC (mm)^a	42.04 ± 2.71	42.48 ± 2.58	42.55 ± 2.58	42.91 ± 2.85	0.0685
CSMI (mm⁴)	1270 ± 302	1299 ± 294	1336 ± 306	1363 ± 335	0.0676
SSIx (mm³)	203 ± 37	209 ± 36	213 ± 37	215 ± 40	0.0410
Cortical thickness (mm)	3.27 ± 0.54	3.27 ± 0.46	3.32 ± 0.51	3.34 ± 0.48	0.5241