Table 1. Univariate analysis of baseline characteristics among patients with IBD.
| No CMV disease or infection (n=144,484) | CMV disease or infection (n=798) | P-value | |||
|---|---|---|---|---|---|
| Age (mean, CI) | 48.45 (48.14, 48.77) | 50.59 (47.72, 53.45) | 0.1442 | ||
| Sex | 0.1339 | ||||
| Male | 62,122 | 43.00% | 388 | 48.65% | |
| Female | 82,362 | 57.00% | 410 | 51.35% | |
| Race | 0.0008 | ||||
| White | 107,732 | 74.56% | 567 | 71.00% | |
| Black | 17,661 | 12.22% | 73 | 9.17% | |
| Hispanic | 12,492 | 8.65% | 70 | 8.82% | |
| Other | 6,599 | 4.57% | 88 | 11.01% | |
| Hospital bed size | <0.0001 | ||||
| Small | 15,692 | 10.86% | 47 | 5.93% | |
| Medium | 35,127 | 24.31% | 77 | 9.61% | |
| Large | 93,664 | 64.83% | 674 | 84.46% | |
| Hospital type | <0.0001 | ||||
| Rural | 11,849 | 8.20% | 14 | 1.75% | |
| Urban non-teaching | 67,665 | 46.83% | 214 | 26.78% | |
| Urban teaching | 64,970 | 44.97% | 570 | 71.47% | |
| Insurance | 0.1038 | ||||
| Medicare | 40,832 | 28.26% | 240 | 30.12% | |
| Medicaid | 16,733 | 11.58% | 84 | 10.54% | |
| Privatea | 67,493 | 46.71% | 418 | 52.43% | |
| Otherb | 19,426 | 13.45% | 55 | 6.91% | |
| Elixhauser score | 0.0010 | ||||
| <3 | 97,721 | 67.63% | 441 | 55.22% | |
| ≥3 | 46,762 | 32.37% | 357 | 44.78% | |
| IBD admission volume | <0.0001 | ||||
| Low (0–50) | 90,705 | 62.78% | 289 | 36.19% | |
| Medium (51–150) | 41,535 | 28.75% | 323 | 40.45% | |
| High (>150) | 12,244 | 8.47% | 186 | 23.36% | |
| Admission day | 0.1765 | ||||
| Weekday | 112,318 | 77.74% | 655 | 82.05% | |
| Weekend | 32,165 | 22.26% | 143 | 17.95% | |
| Severity score | <0.0001 | ||||
| Low | 93,877 | 64.97% | 330 | 41.39% | |
| Intermediate | 42,846 | 29.65% | 335 | 41.98% | |
| High | 7,760 | 5.37% | 133 | 16.63% | |
CI, confidence interval; CMV, cytomegalovirus; HMO, Health Maintenance Organization; IBD, inflammatory bowel disease.
a
Private insurance includes HMO.
b
“Other” includes self-pay and with “no-charge”.