Therapeutic efficacy of methylprednisolone sodium succinate via diverse administration routes for mid- to high-frequency sudden sensorineural hearing loss

Table 1 Comparison of general data

Group	n	Males/females	Age (yr)	Duration (d)	Body mass index (kg/m²)	Diseased ears (left/right)
A	41	23/18	46.67 ± 4.28	4.17 ± 0.42	23.11 ± 1.38	25/16
B	35	19/16	46.54 ± 4.05	4.24 ± 0.46	23.14 ± 1.45	22/13
C	33	17/16	46.75 ± 4.51	4.29 ± 0.49	23.19 ± 1.33	19/14
χ2/t value	-	0.155	0.020	0.650	0.030	0.203
P value	-	0.925	0.979	0.523	0.970	0.903