Table I.
Characteristics of patients who had hepatic procedures for benign liver tumors in the United States
| Characteristic | Overall (n = 2,633) | Period 1 (2000–2003; n = 705) | Period 2 (2004–2007; n = 858) | Period 3 (2008–2011; n = 1,070) | P value |
|---|---|---|---|---|---|
| Gender | .04 | ||||
| Female | 2,157 (82.3) | 557 (79.1) | 709 (83.2) | 891 (83.6) | |
| Age (y), median (IQR) | 45 (35–56) | 45 (35–54) | 46 (36–56) | 45 (34–56) | .55 |
| Race | .81 | ||||
| Caucasian | 1,542 (73.7) | 278 (73.7) | 473 (73.2) | 691 (74.1) | |
| African American | 226 (10.8) | 53 (10.3) | 65 (10.1) | 108 (11.6) | |
| Hispanic | 180 (8.6) | 44 (8.6) | 63 (9.8) | 73 (7.8) | |
| Other | 144 (6.9) | 38 (7.4) | 45 (7.0) | 61 (6.5) | |
| Comorbidities | |||||
| Hypertension | 663 (25.2) | 167 (23.7) | 210 (24.5) | 286 (26.7) | .30 |
| Diabetes | 217 (8.2) | 53 (7.5) | 64 (7.5) | 100 (9.4) | .23 |
| Chronic lung disease | 58 (2.2) | 22 (3.1) | 17 (2.0) | 19 (1.8) | .15 |
| Obesity | 155 (5.9) | 25 (3.6) | 45 (5.2) | 85 (7.9) | <.001 |
| Admission type (n = 2,345) | .17 | ||||
| Elective | 2,010 (85.7) | 358 (84.8) | 720 (84.3) | 932 (87.2) | |
| Nonelective | 335 (14.3) | 64 (15.2) | 134 (15.7) | 137 (12.8) | |
| Hospital location (n = 1,704) | .28 | ||||
| Urban | 1,656 (97.2) | NA | 631 (96.6) | 1,925 (97.5) | |
| Rural | 48 (2.8) | NA | 22 (3.4) | 26 (2.5) | |
| Geographic region ( n = 1,723) | <.001 | ||||
| Northeast | 364 (21.1) | NA | 114 (17.5) | 250 (23.4) | |
| Midwest | 432 (25.1) | NA | 144 (22.0) | 288 (26.9) | |
| South | 493 (28.6) | NA | 190 (29.1) | 303 (28.3) | |
| West | 434 (25.2) | NA | 205 (31.4) | 229 (21.4) | |
| Hospital teaching status, (n = 1,704) | .04 | ||||
| Teaching | 1,519 (89.1) | NA | 569 (87.1) | 950 (90.4) | |
| Nonteaching | 185 (10.9) | NA | 84 (12.9) | 101 (9.6) | |
| Any complication | 788 (29.9) | 200 (28.4) | 235 (27.4) | 353 (33.0) | .11 |
| Duration of stay, median (IQR) | 5 (4–7) | 5 (4–7) | 5 (4–7) | 5 (3–7) | .36 |
| Inpatient mortality | 15 (0.6) | 6 (0.9) | 3 (0.4) | 6 (0.6) | .42 |
IQR, Interquartile range; NA, not applicable.