Determinants of weight regain after bariatric surgery.
BACKGROUND
Bariatric surgery leads to an average loss of 60-75% of excess body weight with maximum weight loss in the period between 18 and 24 months postoperatively. However, several studies show that weight is regained from two years of operation.


OBJECTIVE
To identify the determinants of weight regain in post-bariatric surgery users.


METHODS
Prospective cross-sectional study with 64 patients who underwent bariatric surgery with postoperative time > 2 years valued at significant weight regain. The variables analyzed were age, sex, education, socioeconomic status, work activity related to food, time after surgery, BMI, percentage of excess weight loss, weight gain, attendance monitoring nutrition, lifestyle, eating habits, self-perception of appetite, daily use of nutritional supplements and quality of life.


RESULTS
There were 57 (89%) women and 7 (11%) men, aged 41.76 ± 7.93 years and mean postoperative period of 53.4 ± 18.4 months. The average weight and BMI were respectively 127.48 ± 24.2 kg and 49.56 ± 6.7 kg/m2 at surgery. The minimum weight and BMI were achieved 73.0 ± 18.6 kg and 28.3 ± 5.5 kg/m2, reached in 23.7 ± 12 months postoperatively. Regained significant weight occurred in 18 (28.1%) cases. The mean postoperative period of 66 ± 8.3 months and work activities related to food showed statistical significance (p=000 and p=0.003) for the regained weight.


CONCLUSIONS
Bariatric surgery promotes adequate reduction of excess body weight, with significant weight regain observed after five years; post-operative time and work activity related to eating out as determining factors for the occurrence of weight regain.
Emanuelle Cristina Lins
EC
Bastos
Emília Maria Wanderley Gusmão
EM
Barbosa
Graziele Moreira Silva
GM
Soriano
Ewerton Amorim
EA
dos Santos
Sandra Mary Lima
SM
Vasconcelos
D000328:Adult; D050110:Bariatric Surgery; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D009765:Obesity / Q000601:surgery*; D011184:Postoperative Period; D011446:Prospective Studies; D012008:Recurrence; D015430:Weight Gain