Table 4.

Spearman’s correlation tests of age, number of traumatic brain injuries, and Marshall classification with outcomes and of radiological outcome with laboratory tests

	Whole groups						Group 1 only
	Rho (age)	P value	Rho (time to callus)	P value	Rho (callus ratio)	P value	Rho (number of traumatic brain injuries)	P value	Rho (GCS)	P value	Rho (Marshall classification)	P value
Radiological outcomes
Time to callus (days)	−0.088	0.553	–		−0.089	0.549	0.297	0.348	−0.164	0.593	0.939	< 0.001*
Callus ratio	−0.458	0.001*	−0.089	0.549	–		−0.772	0.003*	−0.508	0.076	−0.154	0.632
Laboratory tests
WBC (×103/ul)	− 0.059	0.692	− 0.109	0.460	0.186	0.204	−0.741	0.006*	− 0.073	0.814	0.123	0.702
Monocytes (× 103/ul)	− 0.107	0.469	− 0.129	0.381	0.236	0.106	−0.093	0.775	−0.486	0.092	−0.062	0.849
Lymphocytes (×103/ul)	−0.062	0.676	−0.169	0.252	0.199	0.175	−0.031	0.924	0.106	0.730	−0.031	0.924
Neutrophils (×103/ul)	0	1.000	0.021	0.888	0.022	0.882	−0.278	0.382	−0.017	0.957	0.123	0.702
RBC (×106/ul)	−0.185	0.209	0.441	0.002**	−0.177	0.230	−0.063	0.847	0.989	< 0.001**	−0.313	0.322
Hb (g/dl)	−0.101	0.495	0.442	0.002**	−0.104	0.483	−0.123	0.702	0.464	0.110	0.617	0.033*
Hct (%)	−0.104	0.481	0.465	0.001**	−0.129	0.384	−0.123	0.702	0.464	0.110	0.617	0.033*
MCH (pg)	0.206	0.159	0.009	0.950	0.058	0.696	0.216	0.500	−0.390	0.188	0.925	< 0.001**
CRP (mg/l)	0.120	0.417	−0.015	0.921	−0.126	0.395	0.185	0.565	−0.291	0.336	−0.370	0.236
ALP (U/l)	−0.025	0.864	−0.283	0.052	−0.064	0.666	0.062	0.849	0.078	0.800	−0.401	0.196
Ca (mg/dl)	−0.153	0.315	0.345	0.020*	−0.373	0.012*	−0.204	0.526	0.537	0.059	−0.751	0.005**
P (mg/dl)	−0.177	0.245	−0.492	0.001**	0.180	0.237	−0.278	0.382	−0.156	0.610	−0.833	0.001**

GCS Glasgow Coma Scale, WBC white blood cell, RBC red blood cell, Hb hemoglobin, Hct hematocrit, MCH mean corpuscular hemoglobin, CRP C-reactive protein, ALP alkaline phosphatase, Ca calcium, P phosphate

*Statistically significant (P < 0.05)

**Statistically significant (P < 0.01)