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Table 1 Baseline characteristics of study patients stratified by survival outcome

From: Monitoring of serum lactate level during cardiopulmonary resuscitation in adult in-hospital cardiac arrest

Variables All patients Patients surviving to hospital discharge Death at hospital discharge P value
(n = 340) (n = 50) (n = 290)
Age, y, mean (SD) 65.9 (16.2) 65.2 (16.2) 66.0 (16.2) 0.75
Male, n (%) 214 (63) 37 (74) 177 (61) 0.08
Comorbidities, n (%)     
 Heart failure 93 (27) 17 (34) 76 (26) 0.30
 Myocardial infarction 45 (13) 9 (18) 36 (12) 0.27
 Arrhythmia 55 (16) 11 (22) 44 (15) 0.22
 Hypotension 68 (20) 8 (16) 60 (21) 0.57
 Respiratory insufficiency 236 (69) 34 (68) 202 (70) 0.87
 Renal insufficiency 138 (41) 22 (44) 116 (40) 0.64
 Hepatic insufficiency 64 (19) 4 (8) 60 (21) 0.03
 Metabolic or electrolyte abnormality 66 (19) 9 (18) 57 (20) 1
 Diabetes mellitus 112 (33) 23 (46) 89 (31) 0.05
 Baseline evidence of motor, cognitive, or functional deficits 63 (19) 12 (24) 51 (18) 0.32
 Acute stroke 16 (5) 3 (6) 13 (5) 0.71
 Favorable neurological status 24 hours before cardiac arrest 143 (42) 25 (50) 118 (41) 0.28
 Pneumonia 111 (33) 19 (38) 92 (32) 0.42
 Metastatic cancer or any blood-borne malignancy 68 (20) 6 (12) 62 (21) 0.18
  1. SD standard deviation