Table 2.
Univariate Comparison of VAS Pain Scores in Medicaid Versus All Other Modes of Insurance (Medicare, Private, Uninsured).
| Payer status | Preoperative, VAS ± SEM (P value)
a
|
Postoperative, VAS ± SEM (P value)
a
|
|||
|---|---|---|---|---|---|
| (n = 347) | 2 weeks (n = 319) | 1 month (n = 271) | 3 months (n = 178) | 6 months (n = 52) | |
| Medicaid | 6.9 ± 0.3 | 4.1 ± 0.3 | 3.5 ± 0.4 | 3.9 ± 0.5 | 3.1 ± 0.9 |
| Medicare | 5.8 ± 0.3 (.018) | 3.3 ± 0.3 (.060) | 2.9 ± 0.3 (.221) | 2.4 ± 0.5 (.006) | 2.2 ± 0.9 (.407) |
| Private | 5.1 ± 0.3 (<.001) | 2.7 ± 0.2 (<.001) | 2.1 ± 0.2 (.001) | 1.5 ± 0.2 (<.001) | 1.5 ± 0.4 (.103) |
| Uninsured | 5.0 ± 0.8 (.044) | 2.3 ± 0.7 (.029) | 2.8 ± 0.7 (.466) | 1.7 ± 0.5 (.015) | 1.0 ± 1.0 (.325) |
Note. VAS = Visual Analogue Scale; SEM = standard error of the mean.
a
P values in comparison to patients with Medicaid insurance; SEM; significant P values shown in bold.