Table 1.
Operative Outcome and Coverage Characteristics
| Variable | Year |
P Value | |
|---|---|---|---|
| 2019 | 2020 | ||
| Service output | |||
| Procedures per institution per month, average (standard deviation) | 135 (55) | 89 (49) | 0.031∗ |
| Procedures per attending neurosurgeon per month, average (standard deviation) | 19.6 (7.7) | 13.9 (9.3) | 0.0025∗ |
| Procedures not covered by a resident neurosurgeon, n (%) | 217 (20.1) | 83 (11.7) | <0.0001∗ |
| Procedures covered by 1 resident neurosurgeon, n (%) | 814 (75.4) | 576 (81.0) | 0.0064∗ |
| Procedures covered by ≥2 resident neurosurgeons, n (%) | 48 (4.5) | 52 (7.3) | 0.0114∗ |
| Adverse outcomes | |||
| Mortalities, n (%) | 23 (2.1) | 15 (2.1) | 1.0000 |
| Morbidities, n (%) | 33 (3.1) | 33 (4.6) | 0.0954 |
Normally distributed data compared with t tests and proportions compared with Fisher exact tests.
∗
Significant difference with α = 0.05.