Table 1.

Mean values of demographic, anthropometric, and biochemical characteristics of the sample at recruitment according to the type of surgery.

Variable	Mean ± SD or frequency (%)		ANOVA or χ 2
	RYGB N = 55	SG N = 40	P value
Age (years)	44.8 ± 9.9	43.4 ± 11.2	0.509
Gender (female sex)	72.7%	90.0%	0.038
Alcohol consumption	3.64%	2.50%	0.755
Current smoking	50.9%	47.5%	0.743
SBP (mmHg)	125.7 ± 21.5	128.9 ± 21.1	0.496
DBP (mmHg)	82.6 ± 11.6	81.4 ± 11.9	0.627
BMI before surgery (kg/m2)	49.1 ± 6.1	51.5 ± 7.2	0.084

SBP: systolic blood pressure; DBP: diastolic blood pressure; BMI: body mass index.

Statistical significance was set at the level of P value <0.05.