2 (83.1 )]. Each systems had been homogenous with regards to gender (p=0.890) and typical age (p=0.174), with predominance of get BA female gender in both of 4.8:1 (p0.001). The age range in between 17 and 29 years old was predominant in female PPG (p=0.037); the rest had equivalent distribution in between services.ABCD Arq Bras Cir Dig 2016;29(Supl.1):53-MASticAtOrY FUnctiOn OF OBeSe cAnDiDAteS tO BAriAtric SUrgerY FrOM DiStinct SOciOecOnOMic clASSeSRegarding marital status, the category “single” was predominant in female SUSG (p=0.009). The rest was distributed evenly. The average weight, overweight and BMI had been greater in SUSG in both genders (male and female: p0.001). Inside PCG and SUSG, male gender has shown greater indexes than female (p0.001). The typical variety of dental functional units in PCG, in each genders, showed the highest typical in comparison to SUSG (p0.001). In SUSG, male gender showed greater typical in comparison with female gender (p=0.008). When comparing each groups concerning impaired masticatory function (7 functional units) and efficient masticatory function (eight functional units), the impaired function was extra present in female SUSG (p0.001) as well as the effective one particular in female PCG (p0.001). Inside SUSG, the male gender showed predominance of efficient masticatory function when when compared with female gender (p=0.036). Smoking did not show unique incidence amongst each solutions, whilst alcoholism showed predominance in SUSG when in comparison to PCG (0.014). Male gender showed greater alcoholism rate in both services [PCG (p=0.031) and SUSG (p0.001)]. The typical variety of sufferers who produced use of medicine showed homogenous distribution in both services and genders. Nevertheless, the typical of medicine utilised by pharmacological class was greater in female SUSG (p0.001). Laboratorial tests didn’t show distinction amongst each solutions relating to hemoglobin, hematocrit, ferritin, total cholesterol and triglycerides. Total proteins and albumin have been much more frequently outdoors typical values in PCG (p=0.045 and p=0.040 respectively). Fasting glucose was much more altered in female SUSG (p0.001), when in PCG it was more altered in male gender than female (p=0.012). Comorbidities presence was larger in female SUSG: arterial hypertension (p=0.005), diabetes mellitus (p=0.006), sleep apnea (p=0.004) and metabolic syndrome (p0.001). Inside the private system (PCG), the male gender showed greater frequency of arterial hypertension (p=0.022), sleep apnea (p=0.003) and metabolic syndrome (p=0.003). Arthropathy was more frequent in PCG when in comparison with SUSG in each genders (male: p=0.042 and female: p=0.007). The typical period involving the very first medical appointment along with the surgery’s accomplishment date was larger in female SUSG (p0.001). Regarding the period range, the one among 0 and 180 days was predominant in female PCG (p0.001) plus the one over 365 days was predominant in female SUSG (0.001). This sample attributes that: getting from public service (p=0.003), sophisticated age (p0.001), being female (p=0.029), suffer from diabetes (p=0.045) and getting smoker (p=0.043) have been independent risk aspects that may trigger impaired masticatory function.