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Table 1 Demographic characteristics of the STD-CPR and CO-CPR groups

From: Evaluation of abdominal compression–decompression combined with chest compression CPR performed by a new device: Is the prognosis improved after this combination CPR technique?

 

CO-CPR

STD-CPR

P value*

Total (n = 135)

Total (n = 143)

Baseline characteristics

 Age(Mean ± SD), years

58.33 ± 14.88

59.62 ± 14.91

0.471

 Men, n(%)

100(74.1%)

101(70.6%)

0.521

 Witnessed, n(%)

81(60.0%)

84(58.7%)

0.831

 Bystander CPR, n (%)

51(37.8%)

50(35.0%)

0.626

 First monitored shockable rhythm, n (%)

11(8.1%)

17(11.9%)

0.300

 Epinephrine < 5 mg, n(%)a

30(22.2%)

39(27.3%)

0.330

Etiology

 Medical, n (%)

110(81.5%)

108(75.5%)

0.228

 Asphyxia, n (%)

14(10.4%)

12(8.4%)

0.571

 Drowning, n (%)

0

2(1.4%)

0.499

 Others, n (%)

11(8.1%)

21(14.7%)

0.088

Location

   

 Home, n (%)

85(63.0%)

99(69.2%)

0.270

 Public place, n (%)

23(17.0%)

18(12.6%)

0.296

 Others, n (%)

27(20.0%)

26(18.2%)

0.700

Comorbidities

   

 Diabetes, n (%)

48(35.6%)

50(35.0%)

0.918

 Hypertension, n (%)

64(47.4%)

63(44.1%)

0.575

 Malignancy, n (%)

14(10.4%)

13(9.1%)

0.719

 Lung disease, n (%)

7(5.2%)

10(7.0%)

0.530

 Previous stroke, n (%)

17(12.6%)

25(17.5%)

0.255

 Chronic renal disease, n (%)

8(5.9%)

12(8.4%)

0.427

 Cardiovascular disease, n (%)

77(57.0%)

69(48.3%)

0.143

 COPD, n(%)

3(2.2%)

4(2.8%)

0.760

  1. COPD, Chronic obstructive pulmonary disease
  2. *Fisher’s exact or Pearson’s chi-square tests
  3. aEpinephrine dose dichotomized according to median