Table A1 Electronic search strategy
From: Dietary patterns and oesophageal squamous cell carcinoma: a systematic review and meta-analysis
 | PubMed/Embase search | CNKI/VJIP search | Where treated |
---|---|---|---|
 | (English database) | (Chinese database) |  |
1 | Oesophageal cancer |
| Title/abstract |
2 | Oesophageal squamous cell carcinoma |
| Title/abstract |
3 | Oesophageal neoplasm |
| Title/abstract |
4 | Dietary pattern |
| Title/abstract |
5 | Nutrients pattern |
| Title/abstract |
6 | Food pattern |
| Title/abstract |
7 | Eating pattern |
| Title/abstract |
8 | Dietary habits |
| Title/abstract |
9 | Diet |
| Title/abstract |
10 | Dietary |
| Title/abstract |
11 | Nutrients |
| Title/abstract |
12 | 1 OR 2 OR 3 | ||
13 | 4 OR 5 OR 6 OR 7 OR 8 OR 9 OR 10 OR11 | ||
14 | 12 and 13 | ||
15 | Limited to English or Chinese language | ||
16 | Limited to humans study | ||
17 | Limited to factor analysis/principle component factor analysis/cluster analysis | ||
18 | Limited 14 to (15 and 16 and 17) |