Table 2. Hospital Characteristicsa.
| Characteristic | No./Total No. (N = 290) | Overall risk-standardized survival rate, No./Total No. | P valueb | |||
|---|---|---|---|---|---|---|
| Quartile 1 (n = 72) | Quartile 2 (n = 73) | Quartile 3 (n = 73) | Quartile 4 (n = 72) | |||
| Beds, No. | .08 | |||||
| <200 | 46/230 (20.0) | 11/59 (18.6) | 7/55 (12.7) | 17/55 (30.9) | 11/61 (18.0) | |
| 200-499 | 122/230 (53.0) | 37/59 (62.7) | 31/55 (56.4) | 26/55 (47.3) | 28/61 (45.9) | |
| ≥500 | 62/230 (27.0) | 11/59 (18.6) | 17/55 (30.9) | 12/55 (21.8) | 22/61 (36.1) | |
| Missing | 60 | 13 | 18 | 18 | 11 | |
| Cardiac beds, No. | .01 | |||||
| 0 | 65/214 (30.4) | 16/56 (28.6) | 13/52 (25.0) | 25/52 (48.1) | 11/54 (20.4) | |
| 1-10 | 41/214 (19.2) | 9/56 (16.1) | 13/52 (25.0) | 7/52 (13.5) | 12/54 (22.2) | |
| 11-20 | 50/214 (23.4) | 21/56 (37.5) | 11/52 (21.2) | 8/52 (15.4) | 10/54 (18.5) | |
| 21-30 | 31/214 (14.5) | 7/56 (12.5) | 10/52 (19.2) | 5/52 (9.6) | 9/54 (16.7) | |
| ≥31 | 27/214 (12.6) | 3/56 (5.4) | 5/52 (9.6) | 7/52 (13.5) | 12/54 (22.2) | |
| Missing | 76 | 16 | 21 | 21 | 18 | |
| Intensive care beds, No. | .67 | |||||
| 0 | 8/214 (3.7) | 1/56 (1.8) | 2/52 (3.8) | 3/52 (5.8) | 2/54 (3.7) | |
| ≤12 | 35/214 (16.4) | 11/56 (19.6) | 7/52 (13.5) | 12/52 (23.1) | 5/54 (9.3) | |
| 13-25 | 80/214 (37.4) | 24/56 (42.9) | 21/52 (40.4) | 16/52 (30.8) | 19/54 (35.2) | |
| 26-50 | 65/214 (30.4) | 16/56 (28.6) | 16/52 (30.8) | 13/52 (25.0) | 20/54 (37.0) | |
| >50 | 26/214 (12.1) | 4/56 (7.1) | 6/52 (11.5) | 8/52 (15.4) | 8/54 (14.8) | |
| Missing | 76 | 16 | 21 | 21 | 18 | |
| Academic status | .15 | |||||
| Major teaching | 68/233 (29.2) | 14/59 (23.7) | 18/56 (32.1) | 11/56 (19.6) | 25 (40.3) | |
| Minor teaching | 73/233 (31.3) | 21/59 (35.6) | 20/56 (35.7) | 17/56 (30.4) | 15 (24.2) | |
| Nonteaching | 92/233 (39.5) | 24/59 (40.7) | 18/56 (32.1) | 28/56 (50.0) | 22 (35.5) | |
| Missing | 57 | 13 | 17 | 17 | 10 | |
| Location | .98 | |||||
| Rural | 16/233 (6.9) | 4/59 (6.8) | 3/56 (5.4) | 4/56 (7.1) | 5 (8.1) | |
| Urban | 217/233 (93.1) | 55/59 (93.2) | 53/56 (94.6) | 52/56 (92.9) | 57 (91.9) | |
| Missing | 57 | 13 | 17 | 17 | 10 | |
| US Census region | .02 | |||||
| North Mid-Atlantic | 42/234 (17.9) | 14/59 (23.7) | 8/57 (14.0) | 7/56 (12.5) | 13/62 (21.0) | |
| South Atlantic | 60/234 (25.6) | 14/59 (23.7) | 15/57 (26.3) | 16/56 (28.6) | 15/62 (24.2) | |
| North Central | 53/234 (22.6) | 5/59 (8.5) | 12/57 (21.1) | 13/56 (23.2) | 23/62 (37.1) | |
| South Central | 36/234 (15.4) | 14/59 (23.7) | 8/57 (14.0) | 11/56 (19.6) | 3/62 (4.8) | |
| Mountain Pacific | 43/234 (18.4) | 12/59 (20.3) | 14/57 (24.6) | 9/56 (16.1) | 8/62 (12.9) | |
| Missing | 56 | 13 | 16 | 17 | 10 | |
| Cardiopulmonary arrest events, No. | .67 | |||||
| Mean (SD) | 298.0 (252.3) | 269.8 (208.6) | 299.4 (222.9) | 301.2 (287.9) | 321.6 (282.4) | |
| Median (IQR) | 234.0 (109.0-393.0) | 222.5 (124.0-376.0) | 256.0 (111.0-459.0) | 203.0 (90.0-375.0) | 249.5 (125.0-401.0) | |
Abbreviation: IQR, interquartile range.
a
Data are presented as number (percentage) of patients unless otherwise indicated.
b
Continuous variables were compared using 1-way analysis of variance. Categorical variables were compared using χ2 or Fisher exact test.