Table 2. Characteristics of patients with TSCI in Tianjin according to etiology (1999–2016).

Variables	Traffic accidents	Low falls	High falls	Struck by falling objects	Other traumatic cause	P-value
Age						<0.001
15–29	34	8	28	5	7
30–44	81	28	53	13	4
45–59 ab	106	114	48	7	13
60–74 abc	42	87	7	4	4
≥75 abc	8	31	2	0	1
Mean age±s.d.	41.2±15.6	58.5±16.0	35±14	24±0	37±18.0	0.003
Overall	271	268	138	29	29
Gender						0.052
Male	195	199	111	25	17
Female	76	69	27	4	12
Overall	271	268	138	29	29
Level of injury						<0.001
Cervical	209	229	53	18	23
Thoracic a	31	24	42	5	3
Lumbar and sacral a	31	15	43	6	3
Overall	271	268	138	29	29
ASIA scale						0.004
A	67	25	44	8	7
B a	30	32	12	0	2
C a	52	79	29	7	4
D a	122	132	53	14	16
Overall	271	268	138	29	29
Severity						<0.001
Complete tetraplegia	57	24	24	3	5
Incomplete tetraplegia a	145	184	27	11	19
Complete paraplegia ab	20	7	28	4	2
Incomplete paraplegiaab	49	53	59	11	3
Overall	271	268	138	29	29
Concomitant injury						<0.001
Having	218	61	73	13	10
Not having	53	207	65	16	19

ASIA, American Spinal Injury Association; TSCI, traumatic spinal cord injury.

Superscript symbols a, b, c, d, and e represent the first, second, third, fourth, and fifth groups respectively; There were no statistical differences between subgroups when no superscripts were marked.

Superscript symbols a, b, c, d, and e marked on each item means statistical differences were observed when comparing with different groups.

Compared with the first group, ^aP < 0.05; Compared with the second group, ^bP < 0.05; Compared with the third group, ^cP < 0.05; Compared with the forth group, ^dP < 0.05; Compared with the fifth group, ^eP < 0.05.