Annals of Clinical Nutrition and Metabolism : eISSN 2799-8363 / pISSN 2799-7898

Table. 3.

Table. 3.

Body composition analysis between the control group and the study group

Variable Control group (n=31) Within P-value Study group (n=31) Within P-value Between
P-value
Compliance (>90%)
(n=22)
Within P-valuea
Height (cm)
Preoperation 163.35±8.39 NA 165.53±9.06 >0.9999 (S) 0.3332 (W) 163.03±9.30
Weight (kg)
Preoperation 67.94±12.33 65.43±11.46 0.4098 (T) 63.85±9.67
6 months 63.19±11.38 59.86±10.14 0.2292 (T) 59.14±8.69
Change at 6 months –4.75±4.85 <0.0001 (P) –5.56±3.71 <0.0001 (P) 0.4596 (T) –4.72±3.01 <0.0001
Body mass index (kg/m2)
Preoperation 25.10±4.09 24.35±2.92 0.6676 (W) 23.97±2.59
6 months 23.65±3.82 22.19±2.49 0.1147 (W) 22.07±2.25
Change at 6 months –1.45±2.07 <0.0001 (S) –2.17±1.36 <0.0001 (P) 0.1764 (W) –1.90±1.11 <0.0001
Lean body mass (kg)
Preoperation 48.27±9.01 47.12±9.50 0.6242 (T) 46.29±9.08
6 months 46.93±9.08 46.09±9.11 0.7178 (T) 45.55±8.68
Change at 6 months –1.35±2.48 0.0001 (S) –1.03±2.95 0.0029 (S) 0.9775 (W) –0.73±3.28 0.0428
Body fat mass (kg)
Preoperation 19.66±7.65 18.31±5.90 0.6986 (W) 17.57±5.50
6 months 16.26±7.13 13.78±4.59 0.2482 (W) 13.58±4.73
Change at 6 months –3.40±3.69 <0.0001 (P) –4.53±3.37 <0.0001 (P) 0.2110 (T) –3.99±3.00 <0.0001
Skeletal muscle mass (kg)
Preoperation 45.59±8.56 44.52±9.01 0.6341 (T) 43.75±8.60
6 months 44.29±8.62 43.50±8.66 0.7201 (T) 43.00±8.43
Change at 6 months –1.30±2.37 0.0002 (S) –1.02±2.79 0.0026 (S) 0.9719 (W) –0.74±3.10 0.0375
Body fat ratio (%)
Preoperation 28.63±7.72 28.00±7.93 0.7527 (T) 27.60±8.39
6 months 25.47±8.39 23.15±7.29 0.2501 (T) 23.19±8.28
Change at 6 months –3.15±4.16 0.0002 (P) –4.18±4.47 <0.0001 (P) 0.1286 (T) –4.41±4.52 0.0002

Values are presented as mean±standard deviation.

Between P-value.

Continuous data: independent t-test (T) or Wilcoxon’s rank-sum test (W).

Within P-value: paired t-test (P) or Wilcoxon’s signed-rank test (S).

NA = not applicable.

aWithin P-value = comparison before and after surgery among patients with high compliance.

Ann Clin Nutr Metab 2024;16:10-9 https://doi.org/10.15747/ACNM.2024.16.1.10
© 2024 Ann Clin Nutr Metab