Bag-Valve Mask versus Endotracheal Intubation in Out-of-Hospital Cardiac Arrest on Return of Spontaneous Circulation: A National Database Study

Figures & data

Table 1 Baseline Characteristics, and Treatments Between the Bag-Valve Mask (BVM) and Endotracheal Intubation (ETI) Group

Factors	BVM (n = 800)	ETI (n = 270)	P-value
Gender -male	585 (73.13%)	199 (73.70%)	0.874
Age (years)	53.1±19.7	54.18±19.6	0.452
Response time < 8 mins	351 (43.8%)	99 (36.67%)	0.039
On scene time (mins)	2.87±3.52	2.97±4.46	0.711
Distance to the scene (km)	7.2±5.9	8.1±7.2	0.033
Defibrillation	6 (0.75%)	7 (2.59%)	0.025
Intravenous administration	742 (93.3%)	266 (98.5%)	<0.001
Adrenaline administration	359 (55.1%)	179 (66.3)	<0.001
Types of illness
- Medical	484 (60.5%)	173 (64.1%)	0.312
- Trauma	250 (31.3%)	79 (29.3%)	0.594

Note: Data presented as number (percentage) or mean ± SD.

Figure 1 Study flow for patients with out-of-hospital cardiac arrest (OHCA) who received either bag-valve mask (BVM) or endotracheal intubation (ETI).

Table 2 Factors Associated with Endotracheal Intubation in Patients with Out-of-Hospital Cardiac Arrest

Factors	Unadjusted Odds Ratio (95% Confidence Interval)	Adjusted Odds Ratio (95% Confidence Interval)
Age	1.002 (0.995, 1.009)	1.001 (0.994, 1.009)
Male sex	0.970 (0.710, 1.327)	0.933 (0.673, 1.294)
Response time	1.350 (1.016, 1.794)	1.189 (0.880, 1.608)
On scene time	1.006 (0.971, 1.043)	1.001 (0.962, 1.040)
Intravenous access	4.750 (1.702, 13.250)	3.373 (1.193, 9.531)
Adrenaline administration	2.416 (1.811, 3.223)	2.259 (1.684, 3.030)
Defibrillation	3.522 (1.173, 10.573)	3.638 (1.171, 11.295)