Table 1. Demographics of the Nationwide Inpatient Sample separated by surgeon volume quartile.
| Demographics | Neck dissection volume (1–2 per year) (n=367) | Neck dissection volume (3–7 per year) (n=311) | Neck dissection volume (8–26 per year) (n=214) | Neck dissection volume (27–92 per year) (n=202) | Total (n=1,094) |
|---|---|---|---|---|---|
| Age (years) | 50 [36–66] | 48 [35–64] | 48 [34–63] | 49 [37–64] | 48 [35–64] |
| Race | |||||
| Missing | 33 | 32 | 16 | 17 | 98 |
| White | 250 (74.9) | 222 (79.6) | 134 (67.7) | 129 (69.7) | 735 (73.8) |
| Female sex | 227 (61.9) | 183 (58.8) | 133 (62.1) | 118 (58.4) | 661 (60.4) |
| Primary expected payer | |||||
| Medicare | 94 (25.6) | 77 (24.8) | 48 (22.4) | 42 (20.8) | 261 (23.9) |
| Medicaid | 21 (5.7) | 17 (5.5) | 20 (9.3) | 15 (7.4) | 73 (6.7) |
| Private insurance | 224 (61.0) | 201 (64.6) | 138 (64.5) | 132 (65.3) | 695 (63.5) |
| Urgent/emergent admission | 38 (10.4) | 32 (10.3) | 17 (8.0) | 21 (10.4) | 108 (9.9) |
| Bed size of hospital | |||||
| Missing | 0 | 3 | 0 | 10 | 13 |
| Large | 218 (59.4) | 213 (69.2) | 151 (70.6) | 153 (79.7) | 735 (68.0) |
| Teaching hospital | |||||
| Missing | 0 | 3 | 0 | 10 | 13 |
| Teaching hospital | 199 (54.2) | 189 (61.4) | 178 (83.2) | 190 (99.0) | 756 (69.9) |
| Geographic region of hospital | |||||
| Northeast | 95 (25.9) | 92 (29.6) | 80 (37.4) | 55 (27.2) | 322 (29.4) |
| South | 206 (56.1) | 158 (50.8) | 117 (54.7) | 118 (58.4) | 599 (54.8) |
| Elixhauser comorbidity score | 13 [9–13] | 13 [3–13] | 12 [0–13] | 13 [8–13] | 13 [7–13] |
Data are presented as median [IQR] or n (%). IQR, interquartile range.