Outcome after gastrectomy in gastric cancer patients with type 2 diabetes

Table 4 Clinical findings in subgroup analysis [body mass index reduction ratio < 10%, n = 206, n (%) or mean ± SD]

Gender	Female	38 (18.4)
	Male	168 (81.6)
Age at OP (yr)
OP type	B-I	105 (51.0)
	B-II	68 (33.0)
	R-Y	33 (16.0)
Extent of gastrectomy	Subtotal (B-I, B-II)	173 (84.0)
	Total (R-Y)	33 (16.0)
Duodenal bypass	Bypass – (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 regimen	Oral diabetic agent	186 (90.3)
	Insulin	20 (9.7)
F/U duration (mo)		35.7 ± 20.7 (5.5-81.1)
Diabetes course	Worse	24 (12.1)
	Same	102 (51.5)
	Improvement	57 (28.8)
	Resolution	15 (7.6)

OP: Operation; BMI: Body mass index; F/U: Follow up; B-I : Billroth I; B-II: Billroth II; R-Y: Roux-en-Y;

¹BMI reduction ratio (%) = -[(Current BMI - Pre-OP BMI)/Pre-OP BMI] × 100.