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Table 1 Characteristics of patients with daytime and nighttime Rapid Response Team activation

From: Impact of nighttime Rapid Response Team activation on outcomes of hospitalized patients with acute deterioration

  Daytime hours (0800–1659)
(n = 2656)
Nighttime hours (1700–0759)
(n = 3367)
P value
Age, years, mean (SD) 67.3 (16.7) 67.9 (16.7) 0.18
Male sex, n (%) 1377 (53.0) 1816 (53.9) 0.91
Admission source, n (%) 0.97
 Home 1854 (69.8) 2357 (70.0)  
 Acute care facility transfer 296 (11.1) 379 (11.3)  
 Long-term care facility transfer 240 (9.0) 306 (9.1)  
 Unknown 266 (10.0) 325 (9.6)  
Comorbidities, n (%)
 Congestive heart failure 419 (15.8) 553 (16.4) 0.54
 Arrhythmia 587 (22.1) 780 (23.2) 0.37
 Valvular disease 80 (3.0) 100 (3.0) 0.90
 Peripheral vascular disease 174 (6.6) 235 (7.0) 0.54
 Hypertension 1007 (37.9) 1081 (32.1) < 0.001
 Chronic obstructive pulmonary disease 421 (15.9) 533 (15.8) 0.93
 Diabetes mellitus 1183 (44.5) 1499 (44.5) 0.89
 Renal failure 262 (9.9) 352 (10.5) 0.48
 Liver disease 172 (6.5) 189 (5.6) 0.15
 Metastatic cancer 376 (14.2) 523 (15.5) 0.15
Elixhauser comorbidity score, mean (SD) 9.0 (8.3) 9.1 (8.5) 0.51
Emergency department visits in past year, median (IQR) 1 (0–2) 1 (0–2) 0.20
Hospital admissions in past year, median (IQR) 0 (0–1) 0 (0–1) 0.35
ICU admissions in past year, median (IQR) 0 (0–0) 0 (0–0) 0.39
  1. ICU Intensive care unit
  2. Boldface font indicates statistical significance