High prevalence of osteoporosis in patients with gastric adenocarcinoma following gastrectomy

Table 1 Patient characteristics (mean ± SD)

Variables			All patients(n = 133)	Male(n = 83)	Female(n = 50)	P
Age (yr)			63.9 ± 7.0	64.3 ± 6.8	63.3 ± 7.4	NS
Duration after gastrectomy (yr)			2.7 ± 2.4	2.8 ± 2.6	2.5 ± 2.2	NS
BMI (kg/m2)			21.5 ± 3.3	21.7 ± 3.1	21.2 ± 3.7	NS
BMI change after gastrectomy (kg/m2)			–2.2 ± 2.4	–2.0 ± 2.4	–2.7 ± 2.3	< 0.05
AGC/EGC (n)			75/58	42/41	33/17	NS
TNM stage		1	76	56	20	< 0.05
		2	26	15	11
		3	25	10	15
		4	6	2	4
Operation type	Subtotal gastrectomy	Billroth I	47	30	17	NS
		Billroth II	54	34	20
	Total gastrectomy	Roux - en - Y	32	19	13
Bone pain			61	39	22	NS
BMI < 18.5 (kg/m2)			21	10	11	0.07
Family history of osteoporosis			10	6	4	NS
Type 2 diabetes			13	8	5	NS
Anemia			49	20	29	< 0.01
sALP > 127 U/L			18	12	6	NS
Past history of fracture			24	14	10	NS
Vertebral deformity			62	36	26	NS

AGC: Advanced gastric cancer; EGC: Early gastric cancer; Anemia, hemoglobin < 11 g/dL in females, < 13 g/dL in males.