Table 2.
General characteristics of the included studies of adolescents who underwent bariatric surgery
| Author (Year); Country |
Sample Profile | Type of surgery | Instrument/ outcomes assessed |
Main findings |
|---|---|---|---|---|
| Sample size, sex, age; PS | Follow-up | Changes in body composition | ||
| Inge et al. (2007) [55]; USA |
n = 5 ♀ age = 18.0 ± 3.0; PS > 5 |
RYGB: 12 M |
DXA FM, LM |
↓ BW (p < 0.01); ↓ BMI (p < 0.01); ↓ LM (p = 0.01); ↓ FM (p < 0.01) |
| Nadler et al. (2009) [37]; USA |
n = 36 ♀♂ age = 16.0 ± 1.2; PS = nr |
LAGB: 12 M |
DXA FM, LM, WB aBMD |
↓ BW (p < 0.0001); ↓ BMI (p < 0.0001); ↓ LM (p = 0.0001); ↓FM (p < 0.0001) ↑WB aBMD (p = 0.0004) |
| Kaulfers et al. (2011) [40]; USA |
n = 61(51♀,10♂) age = 17.3 ± 1.9; PS > 4 |
RYGB: 6, 12, 18, 24 M |
DXA WB BMC |
↓BW (p < 0.0001); ↓ WB BMC (p < 0.0001) |
| Butte et al. (2015) [56]; USA |
n = 11(8♀,3♂) age = 16.5 ± 0.8; PS > 4 |
RYGB: 1.5, 6, 12 M |
BOD POD FM, FFM |
↓ BW (p < 0.0001); ↓ BMI (p < 0.0001); ↓ FFM (p = 0.001); ↓ FM (p < 0.0001) |
| Dubnov-Raz et al. (2015) [39]; Israel |
n = 25(9♀,16♂) age = 16.6 ± 1.5; PS = nr |
SG: 12 M |
BIA FM, FFM |
↓ BW (p < 0.0001); ↓ BMI (p < 0.0001); ↓ FFM (p < 0.001); ↓ FM (p < 0.0001) |
| Brissman et al. (2017) [59]; Sweden |
n = 41(31♀,10♂) age = 14–18; PS > 3 |
RYGB: 12, 24 M |
DXA FM, FFM |
↓ BW (p < 0.001); ↓ BMI (p < 0.001); ↓ FFM (p < 0.001); ↓ FM (p < 0.001) |
| Beamish et al. (2017) [38]; Sweden | n = 72(50♀,22♂); age = 16.5 ± 1.2; PS = nr |
RYGB: 12, 24 M |
DXA FM, LM, WB BMC/ aBMD |
↓ BW (p < 0.001); ↓ BMI (p < 0.001); ↓ LM (p < 0.001); ↓ FM (p < 0.001); ↑BMC (p < 0.001); ↓ aBMD (p < 0.001) |
| Dargan et al. (2018) [13]; Singapure |
n = 13(5♀,8♂); age = 19.1 ± 0.9; PS = nr |
SG: 1, 3, 6, 12 M |
BIA FM, FFM |
↓BW (p < 0.001) |
| Chu et al. (2019) [61]; Canada |
n = 20(15♀,5♂); age = 17.2 ± 0.8; PS > 5 |
RYGB/SG: 6, 12 M |
BIA FM, FFM |
↓ BW (p < 0.001); ↓ BMI (p < 0.001); ↓ FFM (p < 0.001); ↓ FM (p < 0.001) |
| Henfridsson et al. (2019) [60]; Sweden |
n = 85(57♀,28♂); age = 16.0 ± 1.2; PS: nr |
RYGB: 12, 24 M, 5 Y |
DXA LM, FM |
↓ BW (p < 0.001); ↓ BMI (p < 0.001); ↓ LM (p < 0.001); ↓ FM (p < 0.001) |
| Rickard et al. (2019) [31]; USA |
n = 12♀ age = 18.8 ± 2.2; PS: nr |
SG: 12 M |
DXA LM, FM |
↓ BW (p < 0.0005); ↓ BMI (p < 0.034); ↓ LM (p < 0.001); ↓ FM (p < 0.001) |
| Bredella et al. (2020) [57]; USA |
n = 26 (19♀, 7♂); age = 18.0 ± 2.1; PS: nr |
SG: 12 M |
QCT LS vBMD |
↓ BW (p < 0.001); ↓ BMI (p < 0.001); ↓ LS vBMD (p = 0.04) |
| Misra et al. (2020a) [30]; USA | n = 24 (18♀, 6♂). age = 17.8 ± 1.96; PS: nr |
SG: 12 M |
DXA LM, FM, |
↓ BW (p < 0.05); ↓ BMI (p < 0.05); ↓ LM (p < 0.05); ↓ FM (p < 0.05) |
| Misra et al. (2020b) [32••]; USA | n = 22 (16♀, 6♂). age = 18.3 ± 2.35; PS: nr |
SG: 12 M |
DXA LM, FM, WB aBMD, LS aBMD |
↓ BW (p < 0.05); ↓ BMI (p < 0.05) ↓ LM (p < 0.05); ↓ FM (p < 0.05) |
| Bredella et al. (2021) [58••]; USA |
n = 10 (9♀, 1♂) age = 17.8 ± 2.5; PS: nr |
SG: 12 M |
QCT LS vBMD |
↓ BW (p < 0.0001); ↓ BMI (p < 0.02) |
| Nimmala et al. (2022) [35]; USA |
n = 30 (24♀, 6♂) age = 18.2 ± 0.4; PS: nr |
SG: 12 M |
DXA LM, FM |
↓ BW (p < 0.0001); ↓ BMI (p < 0.0001) ↓ LM (p < 0.0001); ↓ FM (p < 0.0001) |
BIA bioelectrical impedance analysis, aBMD areal bone mineral density, BMC bone mineral content, BMI body mass index, BW body weight, DXA dual-energy X-ray absorptiometry, CSA cross-sectional area, cross-sectional moment of inertia, FM fat mass, LAPG laparoscopic adjustable gastric banding, LM lean mass, LS lumbar spine, M months, nr not reported, Pre preoperative, PS pubertal status, QCT quantitative computed tomography, RYGB Roux-n-y gastric banding, SG sleeve gastrectomy, vBMD volumetric bone mineral density, WB whole body, Y years. ♀ female, ♂ male