Table 3.

Summary of Meta-Analysis Findings on Radiological Diagnosis

Radiological Diagnosis	OR (95% CI); P Value	Heterogeneity (%; P Value)	%	Studies (n)
EDH
LMICs	0.76 (0.32–1.79); P > 0.05	84.8; P = 0.1	16 versus 15	2
HICs	1.35 (0.67–2.69); P > 0.05	0; P = 0.55	5 versus 5	3
Overall	0.94 (0.58–1.54); P = 0.81	51.7; P = 0.08	13 versus 13	5
SDH
LMICs	0.79 (0.67–0.92); P < 0.05∗	0.7; P = 0.32	33 versus 30	2
HICs	1.08 (0.63–1.86); P > 0.05	52; P = 0.12	44 versus 49	3
Overall	0.96 (0.67–1.37); P = 0.82	70.8; P = 0.01	35 versus 34	5
SAH
LMICs	0.95 (0.41–2.19); P > 0.05	44.5; P = 0.18	11 versus 9	2
HICs	1.36 (1.00–1.84); P < 0.05∗	0; P = 0.59	31 versus 38	2
Overall	1.15 (0.73–1.81); P = 0.56	71.4; P = 0.01	14 versus 15	4
Contusion
LMICs	1.04 (0.90–1.19); P > 0.05	0; P = 0.57	54 versus 55	2
HICs	1.07 (0.76–1.51); P > 0.05	0; P = 0.77	18 versus 24	2
Overall	1.04 (0.92–1.18); P = 0.54	0; P = 0.93	48 versus 48	4
Skull fracture
LMICs	0.94 (0.78–1.13); P > 0.05	0; P = 0.75	17 versus 16	2
HICs	0.71 (0.18–2.74); P > 0.05	66.3; P = 0.05	29 versus 30	2
Overall	1.01 (0.68–1.51); P = 0.94	53.6; P = 0.07	18 versus 17	4

OR, odds ratio; CI, confidence interval; EDH, epidural hematoma; LMICs, low- to middle-income countries; HICs, high-income countries; SDH, subdural hematoma; SAH, subarachnoid hemorrhage.

^∗Statistically significant.