Journal of Obesity

Clinical Study

Sustained Weight Loss with Vagal Nerve Blockade but Not with Sham: 18-Month Results of the ReCharge Trial

Table 1

Baseline characteristics by treatment group.


	vBloc	Sham control


Demographics
Women, number (%)	141 (87)	62 (81)
Age, mean (SD), y	47 (10)	47 (9)
Ethnicity, number (%)
Caucasian	149 (92)	73 (95)
African American	8 (5)	3 (4)
Native American	2 (1)	1 (1)
Asian	1 (1)	1 (1)
Hawaiian/Pacific Islander	1 (1)	0 (0)
General medical
Body size measures at implant, mean (SD)
Height, cm	166 (8)	168 (9)
Implant weight, kg	113 (13)	116 (14)
BMI, kg/m²	41 (3)	41 (3)
Excess weight^a, kg	44 (9)	45 (10)
Waist circumference, cm	121 (12)	123 (11)
Type 2 diabetes mellitus, number (%)	7 (4)	5 (7)
Hypertension, number (%)	63 (39)	32 (42)
Dyslipidemia, number (%)	91 (56)	46 (60)
Obstructive sleep apnea, number (%)	33 (20)	23 (30)

Excess weight was calculated as the difference between the weight at the time of implantation and the ideal body weight corresponding to a BMI of 25 kg/m².