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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: Med Care. 2016 Jan;54(1):74–80. doi: 10.1097/MLR.0000000000000456

TABLE 2.

Characteristics of IHCA Patients Who Died Before Discharge Versus Surviving to Discharge

Patient Characteristics N (%)
Significance (P)
Died Before Discharge (n = 9539) Survived to Discharge (n = 1621) Total (N = 11,160)
Arrest location
 Medical surgical unit 3274 (82.2) 711 (17.8) 3985 (35.7) < 0.001
 Intensive care unit 6265 (87.3) 910 (12.7) 7175 (64.3)
Monitored
 No 1218 (88.2) 163 (11.8) 1381 (12.4) < 0.001
 Yes 8321 (85.1) 1458 (14.9) 9779 (87.6)
Witnessed
 No 1618 (86.8) 246 (13.2) 1864 (16.7) 0.009
 Yes 7921 (85.2) 1375 (14.8) 9296 (83.3)
Initial shockable rhythm
 No 8359 (88.4) 1092 (11.6) 9451 (84.7) < 0.001
 Yes 1180 (69.0) 529 (31.0) 1709 (15.3)
Mechanical ventilation
 No 5187 (81.0) 1219 (19.0) 6406 (57.4) < 0.001
 Yes 4352 (91.5) 402 (8.5) 4754 (42.6)
Septicemia
 No 7407 (83.7) 1442 (16.3) 8849 (79.3) < 0.001
 Yes 2132 (92.3) 179 (7.7) 2311 (20.7)
Hepatic insufficiency
 No 8609 (84.8) 1540 (15.2) 10149 (90.9) < 0.001
 Yes 930 (92.0) 81 (8.0) 1011 (9.1)
Hypotension
 No 6511 (82.9) 1346 (17.1) 7857 (70.4) < 0.001
 Yes 3028 (91.7) 275 (8.3) 3303 (29.6)
Metastatic or hematologic malignancy
 No 8201 (84.5) 1499 (15.5) 9700 (86.9) < 0.001
 Yes 1338 (91.6) 122 (8.4) 1460 (13.1)
Intravenous vasopressor
 No 6015 (82.3) 1298 (17.7) 7313 (65.5) < 0.001
 Yes 3524 (91.6) 323 (8.4) 3847 (34.5)

Significance (P) is the probability associated with the χ2 testing whether the likelihood of survival to discharge is independent of the different patient characteristics.

IHCA indicates in-hospital cardiac arrest.