Identifying the Predictors of Short Term Weight Loss Failure after Roux-En-Y Gastric Bypass
Table 2
Comparison of anthropometric measurements at the baseline, one month, and six months after gastric bypass surgery among study participants.
Variables
Baseline (n = 54) mean ± SD
1st month (n = 54) mean ± SD
6th month (n = 54) mean ± SD
p
Baseline vs. 1st month
Baseline vs. 6th month
1st month vs. 6th month
Mean difference (SE)
p
Mean difference (SE)
p
Mean difference (SE)
p
Weight (kg)
122.60 ± 17.22
107.65 ± 12.97
89.15 ± 9.53
<0.001∗
−14.95 (1.35)
<0.001∗
−33.45 (1.77)
<0.001∗
−18.49 (1.35)
<0.001∗
BMI (kg/m2)
45.47 ± 6.19
40.57 ± 5.08
33.61 ± 3.39
<0.001∗
−4.91 (0.57)
<0.001∗
−11.86 (0.64)
<0.001∗
−6.96 (0.52)
<0.001∗
FM (kg)
62.51 ± 10.71
53.72 ± 9.98
38.34 ± 7.30
<0.001∗
−8.79 (0.85)
<0.001∗
−24.17 (1.19)
<0.001∗
−15.37 (1.06)
<0.001∗
FM (%)
51.23 ± 4.76
49.60 ± 6.12
43.59 ± 6.14
<0.001∗
−1.63 (0.42)
<0.001∗
−7.64 (0.77)
<0.001∗
−6.01 (0.93)
<0.001∗
FFM (kg)
59.43 ± 10.84
53.76 ± 8.75
50.43 ± 7.54
<0.001∗
−5.67 (0.78)
<0.001∗
−9.01 (1.12)
<0.001∗
−3.33 (1.09)
0.003∗
SMM (kg)
32.88 ± 6.58
29.62 ± 5.19
27.56 ± 4.53
<0.001∗
−3.26 (0.52)
<0.001∗
−5.32 (0.68)
<0.001∗
−2.07 (0.67)
0.003∗
WHR
0.98 ± 0.13
1.00 ± 0.12
0.96 ± 0.13
0.160
0.02 (0.02)
0.999
−0.02 (0.02)
0.939
−0.04 (0.02)
0.135
NC (cm)
47.91 ± 5.75
44.28 ± 3.71
38.13 ± 3.54
<0.001∗
−3.64 (0.53)
<0.001∗
−9.78 (0.88)
<0.001∗
−6.14 (0.64)
<0.001∗
Chest C (cm)
121.31 ± 8.78
114.48 ± 6.58
103.20 ± 5.99
<0.001∗
−6.84 (0.75)
<0.001∗
−18.11 (1.19)
<0.001∗
−11.27 (1.06)
<0.001∗
Ab C (cm)
123.91 ± 15.78
120.11 ± 9.96
104.15 ± 9.50
<0.001∗
−3.80(1.51)
0.015∗
−19.76(1.71)
<0.001∗
−15.96 (1.01)
<0.001∗
HC (cm)
126.50 ± 9.33
118.41 ± 6.55
110.01 ± 5.18
<0.001∗
−8.09 (0.74)
<0.001∗
−16.49(0.96)
<0.001∗
−8.40 (0.64)
<0.001∗
Abbreviations: BMI: body mass index; FM: fat mass; FFM: fat-free mass; SMM: skeletal muscle mass; WHR: waist-to-hip ratio; NC: neck circumference; Chest C: chest circumference; Ab C: abdominal circumference; HC: hip circumference. Data were presented as the mean ± standard deviation (SD) or mean difference and standard error (SE). The repeated-measures analysis of variance was performed for the comparison. Group comparison was performed using Bonferroni correction. ∗Significant difference.
