Table 2.
BMI, ΔBMI, %EWL, and %TWL changes over the study period
| Before index operation | Nadir | Pre-LAGB | FU 1 year | FU 2 years | FU 3 years | FU 4 years | FU 5 years | FU 6 years | FU 7 years | FU 8 years | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Available subjects (n) | 20 | 20 | 20 | 20 | 18 | 12 | 9 | 9 | 7 | 5 | 1 |
| Eligible subjects (n) | 20 | 20 | 20 | 20 | 18 | 12 | 9 | 9 | 8 | 6 | 1 |
| BMI (kg/m2) | 42.5 (41.3–45.4) | 29.1 (27.1–35.1) | 34.8 (31.9–38.1) | 31.6 (27.9–33.8) | 31 (24.9–32.7) | 27.7 (26.1–33) | 26.9 (23.6–27.4) | 24.7 (23.6–28) | 26.5 (24.1–27.1) | 26.5 (24.5–33) | 24.8 |
| ΔBMI (kg/m2) | - | 13.4 (9.6–17.1) | 8.7 (6.1–10–6) | 13.0 (10.6–15.2) | 14.0 (11.4–18.2) | 16.8 (11.8–19.8) | 17.4 (15.2–20) | 16.3 (14.1–18.8) | 16.6 (15.9–17.3) | 16.9 (15.9–19.2) | 16.6 |
| %ΕWL | - | 74.4 (54.9–83.0) | 51.7 (33.3–58.9) | 72.4 (54.5–83.6) | 69.2 (55.5–100) | 91.5 (54–94.5) | 86.3 (77.2–109) | 102 (82.3–109) | 89.6 (88.6–106) | 97.9 (53.6–104) | 102.8 |
| %TWL | - | 31.1 (24.9–37.2) | 20.8 (14.1–24.5) | 30.7 (24.1–35.1) | 31.8 (25.8–40.2) | 36.2 (27.1–43) | 35.5 (32.4–42.6) | 39.8 (33.4–46.6) | 37.9 (36.8–42.5) | 40.2 (31–40.4) | 41 |
Data are expressed in median values (interquartile range; Q1 first quartile; Q3 third quartile)
BMI Body Mass Index, ΔBMI initial BMI – post-operative BMI, %EWL Excess Weight Loss (%), %TWL Total Weight Loss (%), LAGB laparoscopic adjustable gastric banding, FU follow-up