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Table 3 Results of subgroup analyses for in-hospital mortality

From: Intensive care unit versus high-dependency care unit for patients with acute heart failure: a nationwide propensity score-matched cohort study

Analyses In-hospital mortality, n (%) Difference, % P value
ICU HDU (95% CI)
Overall cohort 6,696/62,352 (10.7) 7,101/62,352 (11.4)  − 0.6 (− 1.5 to 0.2) 0.14
Subgroups     
 Respiratory support     
  No supplemental oxygen 1,087/12,005 (9.1) 1,055/12,106 (8.7) 0.3 (− 0.8 to 1.4) 0.54
  Supplemental oxygen 2,393/24,121 (9.9) 2,241/23,535 (9.5) 0.4 (− 0.3 to 1.1) 0.29
  Noninvasive ventilation 2,171/23,015 (9.4) 2,442/23,351 (10.5)  − 1.0 (− 1.9 to − 0.1) 0.026
  Intubation 1,045/3,211 (32.5) 1,363/3,360 (40.6)  − 8.0 (− 14.5 to − 1.5) 0.015
 Intravenous vasodilator    
  Yes 2,958/42,058 (7.0) 3,146/41,971 (7.5)  − 0.5 (− 1.0 to 0.1) 0.097
  No 3,738/20,294 (18.4) 3,955/20,381 (19.4)  − 1.0 (− 3.1 to 1.1) 0.36
 Diuretic     
  Yes 3,873/43,123 (9.0) 4,010/43,155 (9.3)  − 0.3 (− 0.9 to 0.3) 0.30
  No 2,823/19,229 (14.7) 3,091/19,197 (16.1)  − 1.4 (− 3.6 to 0.8) 0.21
 Inotrope     
  Yes 1,527/8,735 (17.5) 1,549/8,843 (17.5) 0.0 (− 1.5 to 1.4) 0.96
  No 5,169/53,617 (9.6) 5,552/53,509 (10.4)  − 0.7 (− 1.7 to 0.2) 0.13
 Vasopressor     
  Yes 1,434/5,047 (28.4) 1,522/4,985 (30.5)  − 2.1 (− 4.4 to 0.2) 0.070
  No 5,262/57,305 (9.2) 5,579/57,367 (9.7)  − 0.5 (− 1.4 to 0.3) 0.19
 Mechanical circulatory support    
  Yes 150/583 (25.7) 172/609 (28.2)  − 2.5 (− 7.9 to 2.9) 0.36
  No 6,546/61,769 (10.6) 6,929/61,743 (11.2)  − 0.6 (− 1.5 to 0.2) 0.16
 Renal replacement therapy     
  Yes 306/3,052 (10.0) 282/3,087 (9.1) 0.9 (− 0.8 to 2.6) 0.31
  No 6,390/59,300 (10.8) 6,819/59,265 (11.5)  − 0.7 (− 1.6 to 0.1) 0.12
  1. ICU intensive care unit; HDU high-dependency care unit; CI confidence interval