|
Variables
|
Univariate analysis
|
Multivariate analysis
|
|---|
|
HR(95% CI)
|
P value
|
HR(95% CI)
|
P value
|
|---|
|
SAI-1 m
|
0.773(0.716–0.843)
|
0.000a
|
0.816(0.746–0.893)
|
0.000b
|
|
TAI-1 m
|
0.893(0.838–0.953))
|
0.001c
|
N.A.
|
0.874
|
|
SAI-P
|
0.908(0.854–0.966)
|
0.002d
|
N.A.
|
0.248
|
|
TAI-P
|
0.900(0.845–0.958)
|
0.001e
|
N.A.
|
0.453
|
|
Degree
|
0.098(0.045–0.216)
|
0.000f
|
0.318(0.136–0.741)
|
0.002g
|
|
Location
|
0.898(0.709–1.138)
|
0.374
|
N.A.
|
N.A.
|
|
Sympathectomy level
|
1.698(1.256–2.295)
|
0.001h
|
N.A.
|
0.751
|
- Note: Statistical powers of the Cox model were calculated using XLSTAT (Addinsoft, Inc., New York, NY, USA) and presented as follows: a= 0.965; b= 0.978; c= 0.966; d= 0.939; e= 0.984; f= 0.104; g= 0.624; and h= 0.932. N.A. = not available
- A systemic review 7 indicated a variety of CH incidences among different sympathectomy levels as follows: T2–3, 57%; T2–4, 38%; and T3–4, 6%. Therefore, we categorized the sympathectomy levels as follows: T2–3 = 1; T2–4 = 2; and T3–4 = 3
