Table 1. Characteristics of patients with TLF in Tianjin Medical University General Hospital, China from 2006 to 2015.

Variables	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	total
Frequency	13	9	12	6	11	10	13	9	24	25	132
Age
16–30	2	2	3	3	1	2	3	1	4	5	26
31–45	2	2	6	1	1	5	3	1	8	4	33
46–60	5	2	3	2	6	1	3	3	5	5	35
61–75	4	2	0	0	2	2	4	4	5	6	29
76–	0	1	0	0	1	0	0	0	2	5	9
Average age	51.692	51.1	39.7	37.7	54.2	41.2	47.4	56	48.4	54.1	49.1 ± 17.7
Sex
Male	7	6	11	4	6	9	7	2	15	10	77
Female	6	3	1	2	5	1	6	7	9	15	55
Marital status
Married	12	9	10	4	10	9	11	8	21	19	113
Unmarried	1	0	2	2	1	1	2	1	3	6	19
Occupation
Peasant	2	1	4	2	2	2	1	0	2	1	17
Workers	1	3	2	2	1	4	3	1	8	4	29
Office clerks	2	0	1	0	1	0	0	0	1	0	5
The retired	6	5	2	2	6	3	7	7	11	15	64
Students	1	0	1	0	1	1	2	1	1	4	12
Drivers	1	0	2	0	0	0	0	0	1	1	5
Etiology
Low fall	1	2	0	1	1	1	4	1	0	6	17
High fall	4	2	5	3	0	6	4	2	7	7	40
MVCs	4	1	2	1	3	2	2	0	5	3	23
Other trauma	0	3	5	1	5	2	1	3	9	5	34
Osteoporosis	4	1	0	0	2	0	1	3	3	4	18
Level of injury
T11	1	1	1	0	0	0	2	0	0	0	5
T12	4	2	3	0	1	3	1	2	12	6	34
L1	6	2	6	2	6	3	4	2	3	13	47
L2	2	1	0	2	0	3	3	1	7	5	24
Multiple fracture	0	3	2	2	4	1	3	4	2	1	22
AISA Scale
A	0	1	2	2	2	0	1	1	0	0	9
B	0	0	0	1	0	0	0	0	2	0	3
C	1	0	0	0	1	0	1	0	0	0	3
D	0	0	0	0	0	1	1	1	1	1	5
E	12	8	10	3	8	9	10	7	21	24	112

ASIA, American Spinal Injury Association; MVCs, motor vehicle collisions; OTs, other traumas; SCI, spinal cord injury.