Tse 2017.

Study characteristics
Methods	HCC in China
Participants	Participants: 431 cases and 402 controls (all male) Inclusion criteria: aged 35‐84 years, newly diagnosed at Department of Surgery and Clinical Oncology from the Prince of Wales Hospital of New Territories East Cluster in Hong Kong, China Recruitment: from August 2011‐November 2016
Interventions	N/A
Outcomes	Number of cases Prostate cancer: 431 cases (all male)
Green tea in exposure categories	Exposure assessment: drinking habit Lowest exposure: non habitual users Highest exposure: habitual users
Notes	Funding: grant from the Health and Medical Research Fund (N. 11121091), Hong Kong Special Administrative Region, China Statistical methods: unconditional logistic regression Variables controlled in analysis: age at interview, marital status, unemployment status, family prostate cancer history, consumption of deep fried food, consumption of pickled vegetables, nightshift work and cumulative bisphenol A exposure index Variables controlled by matching: age (± 5 years)