Table 2.
Postoperative anthropometric and dietary characteristics, comorbidity frequencies, and physical activity levels of 63 individuals treated with RYGB and followed up at the Hospital das Clínicas of the Federal University of Minas Gerais, according to their weight loss response 12 and 24 months after surgery
| Characteristic | 12-month follow-up | 24-month follow-up | ||||
|---|---|---|---|---|---|---|
| SWL (n=51) | IWL (n=12) | P * | SWL (n=53) | IWL (n=10) | P * | |
| Comorbidities | ||||||
| Diabetes | 6 (12.0) | 2 (17.0) | 0.641 | 4 (7.5) | 1 (10.0) | > 0.999 |
| Hypertension | 25 (49.0) | 8 (67.0) | 0.208 | 20 (38.0) | 6 (60.0) | 0.294 |
| Dyslipidemia | 5 (9.8) | 0 | 0.573 | 2 (3.8) | 1 (10.0) | > 0.999 |
| Apnea/dyspnea | 0 | 0 | 0 | 0 | ||
| Anthropometry | ||||||
| BMI (kg/m2) | 33 (30–37) | 48 (44–52) | < 0.001 | 32 (28–36) | 46 (39–51) | < 0.001 |
| TWL (kg) | 43 (36–55) | 47 (32–51) | 0.468 | 47 (38–64) | 40 (24–56) | 0.072 |
| %TWL | 35 (29–40) | 25 (22–29) | < 0.001 | 38 (32–45) | 26 (19–30) | < 0.001 |
| %EWL | 66 (62–88) | 41 (38–44) | < 0.001 | 72 (62–88) | 45 (41–46) | < 0.001 |
| Dietary intake | ||||||
| Daily calories (kcal) | 869.0 (704.0–1,113.0) | 796.0 (758.0–1,007.0) | 0.811 | 992.0 (826.0–1,119.0) | 920.0 (644.0–1,099.0) | 0.438 |
| Daily PRO (g) | 46.0 (33.0–48.0) | 45.0 (33.0–57.0) | 0.645 | 46.0 (33.0–48.0) | 48.0 (18.0–76.0) | 0.886 |
| Daily PRO (% total calories) | 18.0 (15.0–24.0) | 22.9 (19.6–24.1) | 0.151 | 18.0 (15.0–24.0) | 19.0 (12.0–30.0) | 0.931 |
| Daily CHO (g) | 121.0 (93.0–144.0) | 111.0 (96.0–126.0) | 0.883 | 121.0 (93.0–144.0) | 118.0 (87.0–139.0) | 0.585 |
| Daily CHO (% total calories) | 53.0 (41.0–58.0) | 58.0 (49.0–66.0) | 0.253 | 53.0 (41.0–58.0) | 57.0 (44.0–59.0) | 0.384 |
| Daily fat (g) | 34.0 (23.0–43.0) | 20.0 (13.0–29.0) | 0.217 | 34.0 (23.0–43.0) | 26.0 (15.0–40.0) | 0.297 |
| Daily fat (% total calories) | 30.0 (23.0–37.0) | 20.0 (18.0–25.0) | 0.065 | 30.0 (23.0–37.0) | 25.0 (16.0– 29.0) | 0.160 |
| Physical activity level | 0.315 | > 0.999 | ||||
| High | 0 | 1 (8.3) | 1 (1.9) | 0 | ||
| Moderate | 15 (29.0) | 3 (25.0) | 17 (32.1) | 3 (30.0) | ||
| Low | 36 (71.0) | 8 (66.7) | 35 (66.0) | 7 (70.0) | ||
Values are presented as number (%) or median (interquartile range).
*Chi-square test; Fisher’s exact test; Wilcoxon rank sum test; Wilcoxon rank sum exact test.
RYGB, Roux-en-Y gastric bypass; SWL, successful weight loss; IWL, insufficient weight loss; BMI, body mass index; TWL, total weight loss; EWL, excess weight loss; PRO, protein; CHO, carbohydrate.