Table 1.
Cohort Demographics
| Variable | Total | Before COVID-19 | During COVID-19 | Univariable |
Multivariable |
|||
|---|---|---|---|---|---|---|---|---|
| Test Statistic | P Value | OR | 95% CI | P Value | ||||
| Study period (weeks) | 14 | 7 | 7 | NA | NA | NA | NA | NA |
| Adults | ||||||||
| Neurosurgical procedures | 696 | 439 | 257 | |||||
| Patient age (years) | H = 0.88 | 0.348 | 0.99 | 0.98–1.00 | 0.112 | |||
| Median | 60 | 60 | 59 | |||||
| IQR | 47–69 | 47–70 | 46–69 | |||||
| Race | χ2 = 0.07 | 0.963 | ||||||
| White | 607 (87) | 382 (87) | 225 (88) | Ref | Ref | Ref | ||
| Black | 65 (9) | 42 (10) | 23 (9) | 0.86 | 0.47–1.53 | 0.613 | ||
| Other | 24 (3) | 15 (3) | 9 (4) | 1.31 | 0.53–3.12 | 0.550 | ||
| Insurance type | χ2 = 1.93 | 0.588 | ||||||
| Private | 329 (49) | 210 (49) | 119 (49) | Ref | Ref | Ref | ||
| Medicare | 276 (41) | 176 (41) | 100 (41) | 1.13 | 0.77–1.68 | 0.532 | ||
| Medicaid | 25 (4) | 14 (3) | 11 (5) | 1.26 | 0.54–2.89 | 0.588 | ||
| Uninsured | 43 (6) | 31 (7) | 12 (5) | 0.50 | 0.21–1.07 | 0.088 | ||
| Distance from hospital (miles) | H = 1.57 | 0.210 | 1.00 | 1.00–1.00 | 0.061 | |||
| Median | 150 | 152 | 142 | |||||
| IQR | 110–233 | 113–234 | 110–223 | |||||
| Children | ||||||||
| Neurosurgical procedures | 162 | 96 | 66 | |||||
| Patient age (years) | H = 0.52 | 0.471 | 0.99 | 0.93–1.04 | 0.600 | |||
| Median | 4 | 5 | 2 | |||||
| IQR | 1–13 | 1–14 | 0–13 | |||||
| Race | χ2 = 1.88 | 0.390 | ||||||
| White | 126 (78) | 73 (76) | 53 (80) | Ref | Ref | Ref | ||
| Black | 20 (12) | 11 (11) | 9 (14) | 0.97 | 0.32–2.85 | 0.950 | ||
| Other | 16 (10) | 12 (12) | 4 (6) | 0.44 | 0.11–1.45 | 0.201 | ||
| Insurance type | χ2 = 1.47 | 0.479 | ||||||
| Private | 125 (77) | 71 (74) | 11 (17) | Ref | Ref | Ref | ||
| Medicaid | 33 (20) | 22 (23) | 54 (82) | 0.71 | 0.29–1.66 | 0.437 | ||
| Uninsured | 4 (2) | 3 (3) | 1 (2) | 0.61 | 0.03–5.65 | 0.684 | ||
| Distance from hospital (miles) | H = 5.41 | 0.021 | 1.00 | 1.00–1.00 | 0.035 | |||
| Median | 163 | 140 | 198 | |||||
| IQR | 106–266 | 99–207 | 113–371 | |||||
Data presented as n (%), unless noted otherwise.
COVID-19, coronavirus disease 2019; OR, odds ratio; CI, confidence interval; NA, not applicable; IQR, interquartile range; Ref, reference.