Table 4 .
Odds ratio for surgical complication* in patients with a primary degenerative lumbar condition - multivariable Poisson regression, NIS data, 2010 to 2014*.
|
Demographic |
Odds Ratio |
95% Confidence Interval |
P |
|
|---|---|---|---|---|
|
Surgery type | ||||
|
Decompression |
Reference |
|||
|
Simple fusion (2-3 levels) |
1.74 |
1.70, 1.79 |
P < .001 |
|
|
Complex fusion (4+ levels) |
4.08 |
3.91, 4.25 |
P < .001 |
|
|
Gender | ||||
|
Male |
Reference |
|||
|
Female |
1.33 |
1.30, 1.36 |
P < .001 |
|
|
Race | ||||
|
White |
Reference |
|||
|
Black |
1.15 |
1.10, 1.21 |
P<.001 |
|
|
Hispanic |
0.97 |
0.97, 1.02 |
P = .236 |
|
|
Asian/Pacific Islander |
1.04 |
0.93, 1.16 |
P = .493 |
|
|
Other |
1.05 |
0.97, 1.07 |
P = .227 |
|
|
Primary insurance | ||||
|
Private |
Reference |
|||
|
Medicare |
1.11 |
1.07, 1.14 |
P<.001 |
|
|
Medicaid |
1.15 |
1.08, 1.21 |
P<.001 |
|
|
Hospital teaching status | ||||
|
Rural |
Reference |
|||
|
Urban, non-teaching |
1.07 |
1.01, 1.13 |
P = .027 |
|
|
Urban, teaching |
1.32 |
1.24, 1.40 |
P < .001 |
|
|
Geographic region | ||||
|
Northeast |
Reference |
|||
|
Midwest |
1.19 |
1.14, 1.24 |
P<.001 |
|
|
South |
1.07 |
1.03, 1.11 |
P<.001 |
|
|
West |
1.20 |
1.16, 1.25 |
P<.001 |
|
|
Spinal deformity | ||||
|
None |
Reference |
|||
|
Scoliosis, kyphosis, lordosis |
1.43 |
1.37, 1.49 |
P < .001 |
|
|
Also adjusted for age, Charlson comorbidity status, and median household income. | ||||
|
NIS = National Inpatient Sample; HTN = Hypertension. | ||||
*One or more surgical complications listed in Table 3, excluding death.