Table 1.
General characteristics and preoperative data for 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 * | |
| Age (yr) | 46 (39–53) | 50 (34–56) | 0.687 | 46 (37–53) | 52 (46–57) | 0.145 |
| Female sex | 41 (80.4) | 9 (75.0) | 0.700 | 41 (77.0) | 9 (90.0) | 0.672 |
| Family history of obesity | 38 (74.5) | 8 (67.0) | 0.598 | 38 (72.0) | 8 (80.0) | > 0.999 |
| Comorbidities | ||||||
| Diabetes | 22 (43.0) | 5 (42.0) | 0.926 | 22 (42.0) | 5 (50.0) | 0.733 |
| Hypertension | 43 (84.0) | 10 (83.0) | > 0.999 | 45 (85.0) | 8 (80.0) | 0.653 |
| Dyslipidemia | 20 (39.2) | 5 (41.7) | > 0.999 | 21 (40.0) | 4 (40.0) | > 0.999 |
| Apnea/dyspnea | 21 (41.0) | 3 (25.0) | 0.345 | 31 (58.0) | 2 (20.0) | 0.294 |
| Anthropometry | ||||||
| BMI (kg/m2) | 51 (45–56) | 65 (57–70) | 0.004 | 51 (46–56) | 62 (47–72) | 0.100 |
| Weight (kg) | 132 (112–144) | 167 (139–197) | 0.009 | 137 (113–149) | 153 (120–176) | 0.211 |
| EW (kg) | 68 (50–80) | 106 (80–127) | 0.008 | 69 (51–82) | 92 (53–118) | 0.218 |
| Dietary intake | 42 | 7 | 43 | 6 | ||
| Daily calories (kcal) | 1.552 (1.046–2.106) | 1.448 (1.399–2.207) | 0.492 | 1.733 (1.188–2.145) | 1.286 (1.119–1.448) | 0.211 |
| Daily PRO (g) | 65 (41–80) | 95 (61–97) | 0.278 | 67 (45–81) | 56 (31–87) | 0.378 |
| Daily PRO (% total calories) | 16 (14–19) | 22 (14–24) | 0.157 | 17 (14–19) | 18 (11–21) | 0.760 |
| Daily CHO (g) | 226 (162–299) | 250 (143–265) | 0.812 | 241 (164–304) | 158 (143–229) | 0.247 |
| Daily CHO (% total calories) | 59 (51–65) | 53 (40–61) | 0.235 | 59 (51–64) | 54 (51–66) | 0.827 |
| Daily fat (g) | 39 (29–64) | 63 (49–68) | 0.144 | 44 (29–67) | 39 (32–55) | 0.541 |
| Daily fat (% total calories) | 25 (19–30) | 28 (24–36) | 0.106 | 25 (20–31) | 26 (24–31) | 0.782 |
Values are presented as median (interquartile range) or number (%).
*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; EW, excess weight; PRO, protein; CHO, carbohydrate.