Zhong 2001.

Study characteristics
Methods	PCC in China
Participants	Participants: 649 cases and 675 controls (all women) Inclusion criteria: aged 35–69 years, newly diagnosed primary lung carcinoma through Shanghai Cancer Registry in residents in Shanghai, China Recruitment: from 1 February 1992‐31 January 1994
Interventions	N/A
Outcomes	Number of cases Lung cancer: 649 cases (all women), including 473 histologically confirmed: adenocarcinoma (N = 331, 70.0%), squamous cell carcinomas (N = 83, 17.5%), small‐cell carcinomas (N = 13, 2.7%), large‐cell carcinoma (N = 1, 0.2%) and mixed‐cell carcinomas (N = 45, 9.5%)
Green tea in exposure categories	Exposure assessment: intake of green tea Lowest exposure: on regular drinkers Highest exposure: regular drinkers
Notes	Funding: not declared Statistical methods: conditional logistic regression Variables controlled in analysis: age, income, number of years of exposure to environmental tobacco smoke at work, high‐risk occupation, family history of lung cancer, Vitamin C intake, cooking food at high temperature, and respondent status Variables controlled by matching: age (± 5 years)

ACF: aberrant crypt foci; AKP: alkaline phosphatase; ALT: alanine aminotransferase; ASAP: atypical small acinar proliferation; AST: aspartate aminotransferase; BMI: body mass index; CIN: cervical intraepithelial neoplasia; CI: confidence interval; EGCG: (‐)‐epigallocatechin‐3‐gallate; GnRH: gonadotropin releasing hormone; GTE: green tea extract; HBSAg: hepatitis B surface antigen; HCC: hospital‐based case‐control study; HG‐PIN: high‐grade prostate intraepithelial neoplasia; HP:Helicobacter pylori; HPV: human papillomavirus; HR: hazard ratio; HRQoL: health‐related quality of life; HRT: hormone replacement therapy; IBD: inflammatory bowel disease; IPSS: International Prostate Symptom Score; ITT: intention‐to‐treat; LUTS: lower urinary tract symptoms; MENQOL: Menopause‐specific Quality of life; N/A: not applicable; NR: not reported; OR: odds ratio; PCC: population‐based case‐control study; PSA: prostate‐specific antigen; QoL: quality of life; RERF: Radiation Effects Research Foundation; RCT: randomised controlled trial; RR: risk ratio; SD: standard deviation; SNP: single nucleotide polymorphisms; UF: uterine fibroid