Comparison of Nasopharyngeal Airway Device and Nasal Oxygen Tube in Obese Patients Undergoing Intravenous Anesthesia for Gastroscopy: A Prospective and Randomized Study

Table 1

Baseline characteristics of patients in Groups A and B.

	Group A	Group B	P value
Subjects,	127	130
Age, y	44.02 ± 11.68	45.92 ± 11.07	0.503
Gender, M/F	88/39	91/39	0.505
BMI	30.32 ± 2.14	30.21 ± 2.26	0.903
Underlying medical conditions, (%)
ECG abnormality	2 (1.57%)	1 (0.77%)	0.491
Hypertension	7 (5.51%)	6 (4.62%)	0.482
History of surgery	3 (2.36%)	1 (0.77%)	0.302
Diabetes	3 (2.36%)	2 (1.54%)	0.489
Coronary disease	1 (0.79%)	1 (0.77%)	0.745
The purpose of upper GI endoscopy, (%)
Abdominal pain	39 (30.70%)	43 (33.08%)	0.684
Nausea and vomiting	12 (9.45%)	9 (6.92%)	0.460
Bloating	15 (11.81%)	13 (10.00%)	0.641
Haemorrhage	9 (7.09%)	12 (9.23%)	0.530
Loss of appetite	26 (20.47%)	22 (16.92%)	0.465
Diarrhea	8 (6.30%)	10 (7.69%)	0.662
Examination	18 (14.17%)	21 (16.15%)	0.658