Table 1 Patient characteristics by type of stimulator
| Â | HF-SCS | LF-SCS | p-value |
|---|---|---|---|
n | 94 | 143 | Â |
Sex = Male (%) | 54 (57.4) | 70 (49.0) | 0.251 |
Age (mean (SD)) | 61.02 (14.48) | 54.07 (15.05) | < 0.001 |
Ethnicity (%) | Â | Â | 0.027 |
 African American | 0 (0.0) | 2 (1.4) |  |
 Caucasian | 3 (3.2) | 17 (11.9) |  |
 Hispanic | 9 (9.6) | 5 (3.5) |  |
 Non-Hispanic | 79 (84.0) | 111 (77.6) |  |
 Unknown (Patient cannot or refuses to declare ethnicity) | 3 (3.2) | 8 (5.6) |  |
Marriage Status (%) | Â | Â | 0.838 |
 Married | 60 (63.8) | 89 (62.2) |  |
 Other/Unknown | 1 (1.1) | 2 (1.4) |  |
 Separated/Divorced | 13 (13.8) | 19 (13.3) |  |
 Single | 16 (17.0) | 30 (21.0) |  |
 Widowed | 4 (4.3) | 3 (2.1) |  |
Payor Name (%) |  |  | < 0.001 |
 Medicare | 30 (31.9) | 23 (16.1) |  |
 None/Unknown | 49 (52.1) | 84 (58.7) |  |
 Other Government | 8 (8.5) | 3 (2.1) |  |
 Private Insurance | 7 (7.4) | 28 (19.6) |  |
 Workman’s Compensation | 0 (0.0) | 5 (3.5) |  |
Primary Diagnosis for Implant (%) |  |  | < 0.001 |
 Complex Regional Pain Syndrome | 7 (7.4) | 23 (16.1) |  |
 Cranial Neuropathy | 2 (2.1) | 5 (3.5) |  |
 Failed Back Surgery Syndrome | 37 (39.4) | 64 (44.8) |  |
 Lumbar Radiculopathy | 20 (21.3) | 30 (21.0) |  |
 Non-Surgical Refractory Back Pain | 14 (14.9) | 2 (1.4) |  |
 Neuropathic Pain | 7 (7.4) | 17 (11.9) |  |
 Other Chronic Pain | 7 (7.4) | 2 (1.4) |  |
Revision or Explant (%) | 25 (17.5) | 15 (16.0) | 0.897 |
Patient status (%) | Â | Â | 0.016 |
 Alive | 78 (83.0) | 120 (83.9) |  |
 Deceased | 0 (0.0) | 9 (6.3) |  |
 Unknown | 16 (17.0) | 14 (9.8) |  |