Table 2.

Changes for random effects of mcSOS and mcBTT over the time categories

Variables	Regression coefficient	Standard error	95% confidence interval		p value
			lower	upper
mcSOS
6 weeks of hospitalization	1622.10	2.77	1616.66	1627.53	<0.001*
0 months	-8.74	3.42	-15.45	-2.03	0.011*
3 months	-2.53	3.47	-9.35	4.29	0.466*
6 months	-11.42	3.55	-18.41	-4.44	0.001*
12 months	-34.64	3.88	-42.27	-27.01	<0.001*
24 months	-33.48	4.01	-41.37	-25.59	<0.001*
mcBTT
6 weeks of hospitalization	0.45	0.01	0.40	0.49	<0.001*
0 months	0.18	0.02	0.11	0.28	<0.001*
3 months	0.26	0.04	0.19	0.37	<0.001*
6 months	0.24	0.04	0.17	0.35	<0.001*
12 months	-0.01	0.97	-0.14	0.07	0.307
24 months	0.06	0.05	-0.04	0.18	0.194

mcSOS: metacarpal speed of sound; mcBTT: metacarpal bone transmission time. *Significant p value <0.05