Association of Body Compositions and Bone Mineral Density in Chinese Children and Adolescents: Compositional Data Analysis

Table 4

Multiple linear regression analysis of the relationship between body compositions and BMD (boys—compositional multiple regression model) ().

		Adj	TF		NTF		FFM
Whole-body BMD	1	0.5917	8.401-02	0.256432	-1.669-01	0.044409	8.286-02	0.032967
	2	0.7837	7.963-02	0.03602	-1.067-01	0.0107	2.706-02	0.0478
	3	0.823	7.971-02	0.34717	-2.032-01	0.0216	1.235-01	0.000205
	4	0.8811	-2.051-01	0.09448	-1.182-02	0.91017	2.169-01	0.00141
	Total	0.7836	6.460-02	0.034039	-1.055-01	0.00144	4.091-02	0.000108
Upper-limb BMD	1	0.8226	4.317-02	0.34878	-1.300-01	0.01422	8.683-02	0.000887
	2	0.8377	0.00391	0.01089	-8.974-02	0.00391	1.774-02	0.07958
	3	0.7893	1.979-02	0.78945	-1.369-01	0.0743	1.171-01	7.45-05
	4	0.8623	-1.091-01	0.35380	-7.304-02	0.47754	1.822-01	0.00500
	Total	0.825	6.663-02	0.00559	-1.055-01	5.7-05	3.885-02	3.41-06
Thigh BMD	1	0.7791	-4.586-03	0.96242	-1.205-01	0.26162	1.251-01	0.01704
	2	0.8446	5.854-03	0.9121	-8.195-02	0.160	7.609-02	0.000112
	3	0.8674	1.285-01	0.262345	-3.109-01	0.009794	1.823-01	6.2-05
	4	0.8265	-3.097-01	0.15855	-5.188-02	0.78379	3.616-01	0.00282
	Total	0.8241	3.416-02	0.440418	-1.062-01	0.027139	7.199-02	3.51-06
Trunk BMD	1	0.701	1.207-01	0.042169	-2.042-01	0.002757	8.352-02	0.007302
	2	0.841	8.352-02	0.00574	-1.290-01	0.000124	4.546-02	4.21-05
	3	0.8457	1.698-01	0.0250	-2.922-01	0.000299	1.224-01	3.52-05
	4	0.9355	-2.310-02	0.781200	-1.551-01	0.04079	1.782-01	0.00026
	Total	0.8289	9.321-02	0.00021	-1.529-01	3.24-08	5.967-02	2.17-11
Pelvic BMD	1	0.7396	1.429-01	0.102481	-2.938-01	0.00378	1.509-01	0.00168
	2	0.8225	1.184-01	0.016440	-1.763-01	0.00123	5.799-02	0.00123
	3	0.8425	2.123-01	0.053760	-3.917-01	0.000817	1.793-01	3.53-05
	4	0.9082	-6.424-02	0.643974	-1.961-01	0.115220	2.603-01	0.001036
	Total	0.8068	1.341-01	0.000846	-2.022-01	4.05-06	6.808-02	1.08-06

Note: 1—underweight group (), 2—normal-weight group (), 3—overweight group (), and 4—obesity group (); ; ; .