Risk factors for second primary neoplasia of esophagus in newly diagnosed head and neck cancer patients: a case–control study

Table 2 Multivariate logistic regression model for risk assessment ^*

Variables	OR (95% CI)	P-value
Age (≧55 vs. <55)	1.62 (0.59-4.44)	0.350
Gender (male vs. female)	0.17 (0.01-2.00)	0.161
BMI (1-kg/m² increment)	0.87 (0.76-0.99)	0.036
Stage of H&N cancer (III&IV vs. I&II)	2.98 (1.11-7.99)	0.030
Alcohol drinking	5.90 (1.23-26.44)	0.020
Betel quid chewing	0.59 (0.21-1.65)	0.318
Cigarettes smoking	1.39 (0.29-6.60)	0.679
Hypopharyngeal cancer	1.52 (0.54-4.27)	0.423
Laryngeal cancer	4.41 (0.80-24.24)	0.088

Abbreviation: H&N head and neck, OR odds ratio, CI confidence interval.
^*Risk assessment for esophageal low-grade, high-grade intraepithelial neoplasia, and invasive carcinoma.

ISSN: 1471-230X