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Table S1. Hospitals and wards from which controls were recruited with reasons for hospitalization.

Table S2. Association between indicators of socioeconomic status and esophageal squamous cell carcinoma risk, with separate adjustments for some biologic factors.

Table S3. Association between ownership of household appliances and esophageal squamous cell carcinoma risk, Kashmir Valley, India, 2008–2012.

Table S4. Association of socioeconomic status markers, education, and wealth score, with tobacco use.

Data S1. Brief description of multiple correspondence analysis.

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