Effectiveness of outpatient percutaneous endoscopic gastrostomy replacement using esophagogastroduodenoscopy and propofol sedation

Table 3 Comparison of blood concentrations of propofol between PEG replacement patients and middle aged subjects who underwent esophagogastroduodenoscopy

	PEG replacement(n = 20)	Middle age (n=20)	P value
Gender (M/F)	10/10	10/10
Age (yr)	78 ± 2	52 ± 6	< 0.0001
Body weight (kg)	54 ± 9	57 ± 6	0.41
Dose used (mg)	30	60
Sedation level (moderate)	20	20
Blood propofol concentrations (ng/mL)
30 min after injection	130 ± 36	125 ± 35	0.55
60 min	60 ± 22	55 ± 19	0.47
120 min	37 ± 11	29 ± 14	0.45

Values are mean ± SD except for gender and sedation level (numbers of patients). PEG: Percutaneous endoscopic gastrostomy.