Evaluation of routine biopsies in endoscopic screening for esophagogastric junction cancer

Table 3 Multivariate logistic regression analysis: Independent variables and corresponding odds ratios for positive pathologic diagnosis

Selected variables	b	OR	OR, 95%CI	P value
Age (yr)	0.08	1.09	1.07, 1.10	< 0.00011
Gender
Male	0.42	2.32	1.75, 3.06	< 0.00011
Female	0.00	1.00
County
Linzhou	0.00	1.00
Cixian	-0.39	0.20		0.0508
Shexian	-1.76	0.05	0.02, 0.11	< 0.00011
Feicheng	-0.72	0.14	0.09, 0.22	0.00041
Yangzhong	2.03	2.19	1.27, 3.76	< 0.00011
Taixing	0.66	0.56	0.33, 0.93	0.00691
Yangcheng	-0.55	0.17		0.3177
Yanting	-0.51	0.17		0.0975
Endoscopy
Abnormal	1.74	32.51	23.96, 44.09	< 0.00011
Normal	0.00	1.00
Total number of endoscopies performed
< 5000	-0.47	0.45	0.22, 0.91	0.01101
5000-10000	0.00	1.00
> 10000	0.13	0.81		0.3014

¹Statistically significant (P < 0.05).