Brief Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Jan 7, 2012; 18(1): 49-54
Published online Jan 7, 2012. doi: 10.3748/wjg.v18.i1.49
Table 1 Clinical findings [n = 403, n (%) or mean ± SD]
GenderFemale96 (23.8)
Male307 (76.2)
Age at OP (yr)63.8 ± 7.6
OP typeB-I165 (40.9)
B-II134 (33.3)
R-Y104 (25.8)
Extent of gastrectomySubtotal (B-I, B-II)299 (74.2)
Total (R-Y)104 (25.8)
Duodenal bypassBypass – (B-I)165 (40.9)
Bypass + (B-II, R-Y)238 (59.1)
Pre-OP BMI (kg/m2)24.7 ± 3.0 (18.4-39.9)
Current BMI (kg/m2)22.2 ± 2.9 (13.5-35.3)
BMI reduction ratio1 (%)9.8 ± 8.6
Pre-OPOral diabetic agent368 (91.3)
diabetic therapyInsulin35 (8.7)
F/U duration (mo)33.7 ± 20.6 (5.5-81.8)
Diabetes courseWorse38 (9.9)
Same172 (44.7)
Improvement117 (30.4)
Resolution58 (15.1)
Table 2 Univariate analysis [n = 403, n (%) or mean ± SD]
Diabetes course
P value
WorseSameImprovementResolution
GenderFemale8 (8.6)36 (38.7)34 (36.6)15 (16.1)0.180
Male30 (10.3)136 (46.6)83 (28.4)43 (14.7)
Age at OP (yr)62.6 ± 7.664.2 ± 7.463.5 ± 7.462.5 ± 8.40.453
OP typeB-Ia20 (12.4)82 (50.9)42 (26.1)17 (10.6)0.001
B-IIa10 (8.0)59 (47.2)42 (33.6)14 (11.2)0.006
R-Y8 (8.1)31 (31.3)33 (33.3)27 (27.3)
Extent of gastrectomyB-I and B-II (subtotal)30 (10.5)141 (49.3)84 (29.4)31 (10.8)< 0.001
R-Y (total)8 (8.1)31 (31.3)33 (33.3)27 (27.3)
Duodenal bypassB-I (bypass -)20 (12.4)82 (50.9)42 (26.1)17 (10.6)0.002
B-II and R-Y (bypass +)18 (8.0)90 (40.2)75 (33.5)41 (18.3)
Pre-OP BMI (kg/m2)23.4 ± 2.524.9 ± 2.624.8 ± 3.524.9 ± 3.50.127
Current BMI (kg/m2)21.7 ± 2.722.7 ± 2.622.2 ± 3.221.2 ± 2.90.038
BMI reduction ratio1 (%)6.8 ± 10.28.5 ± 7.310.4 ± 8.714.4 ± 8.5< 0.001
Pre-OP diabeticOral diabetic agent38 (10.8)159 (45.3)99 (28.2)55 (15.7)0.147
regimenInsulin0 (0.0)13 (38.2)18 (52.9)3 (8.8)
F/U duration (mo)36.4 ± 18.237.2 ± 21.630.0 ± 20.128.3 ± 17.80.001
Table 3 Multivariate analysis (n = 403)
P valueB-estimationSEContribution degree
Current BMI (kg/m2) 0.4540.0280.037
BMI reduction ratio1 (%)< 0.0010.0510.013 3.948
F/U duration (mo)0.007-0.0130.005-2.703
OP type
B-I 0.006-0.7140.258-2.770
B-II0.070-0.4730.262
R-Y
Current BMI (kg/m2)0.4780.0260.037
BMI reduction ratio1 (%)< 0.0010.0520.013 4.031
F/U duration (mo)0.006-0.0130.005-2.727
Extent of gastrectomy
Subtotal (B-I, B-II)0.011-0.5970.234-2.553
Total (R-Y)
Current BMI (kg/m2)0.6570.0160.037
BMI reduction ratio1(%)< 0.0010.0540.013 4.181
F/U duration (mo)0.005-0.0130.005-2.811
Duodenal bypass
Bypass – (B-I)0.039-0.4160.202-2.061
Bypass + (B-II, R-Y)
Table 4 Clinical findings in subgroup analysis [body mass index reduction ratio < 10%, n = 206, n (%) or mean ± SD]
GenderFemale38 (18.4)
Male168 (81.6)
Age at OP (yr)
OP typeB-I105 (51.0)
B-II68 (33.0)
R-Y33 (16.0)
Extent of gastrectomySubtotal (B-I, B-II)173 (84.0)
Total (R-Y)33 (16.0)
Duodenal bypassBypass – (B-I)105 (51.0)
Bypass + (B-II, R-Y)101 (49.0)
Pre-OP BMI (kg/m2)23.8 ± 2.8 (18.4-32.6)
Current BMI (kg/m2)23.0 ± 2.7 (21.8-32.5)
BMI reduction ratio1 (%)3.4 ± 5.4
Pre-OP diabetic regimenOral diabetic agent186 (90.3)
Insulin20 (9.7)
F/U duration (mo)35.7 ± 20.7 (5.5-81.1)
Diabetes courseWorse24 (12.1)
Same102 (51.5)
Improvement57 (28.8)
Resolution15 (7.6)
Table 5 Subgroup analysis [body mass index reduction ratio < 10%, n = 206, n (%) or mean ± SD]
Diabetes course
P value
WorseSameImprovementRemission
GenderFemale3 (8.1)17 (45.9)14 (37.8)3 (8.1)0.190
Male21 (13.0)85 (52.8)43 (26.7)12 (7.5)
Age at OP (yr)61.9 ± 8.163.9 ± 8.063.8 ± 7.561.1 ± 9.30.976
OP typeB-Ia14 (13.5)56 (53.8)27 (26.0)7 (6.7)0.076
B-IIa7 (11.3)33 (53.2)18 (29.0)4 (6.5)0.181
R-Y3 (9.4)13 (40.6)12 (37.5)4 (12.5)
Extent of gastrectomySubtotal (B-I, B-II)21 (12.7)89 (53.6)45 (27.1)11 (6.6)0.084
Total (R-Y)3 (9.4)13 (40.6)12 (37.5)4 (12.5)
Duodenal bypassBypass – (B-I)14 (13.5)56 (53.8)27 (26.0)7 (6.7)0.250
Bypass + (B-II, R-Y)10 (10.6)46 (48.9)30 (31.9)8 (8.5)
Pre-OP BMI (kg/m2)22.7 ± 2.324.3 ± 2.723.8 ± 3.022.2 ± 2.80.615
Current BMI (kg/m2)22.3 ± 2.223.4 ± 2.623.0 ± 3.121.3 ± 2.60.310
BMI reduction ratio1 (%)1.5 ± 6.63.7 ± 4.53.6 ± 5.94.2 ± 4.60.183
Pre-OPOral diabetic agent24 (13.5)93 (52.2)47 (26.4)14 (7.9)0.080
diabetic
regimenInsulin0 (0.0)9 (45.0)10 (50.0)1 (5.0)
F/U duration (mo)37.7 ± 17.638.8 ± 21.730.7 ± 20.728.7 ± 14.10.022