Table 3.
Case-Control Study for the Evaluation of Endoscopic Screening
| Author (year) | Location | No. of subjects | Age at GC diagnosis of case subjects, yr | Screening frequency |
Comparator | Odds ratio for GC mortality reduction (95% CI) |
|---|---|---|---|---|---|---|
| Hamashima et al. (2013)27 | Japan | Case: 410 | 40–79 | ≥1 | Never screened | Screened within 36 mo |
| Control: 2,292 | 0.695 (0.480–0.695) | |||||
| Matsumoto et al. (2013)28 | Japan | Case: 13 | 54–91 | ≥1 | Never screened | 0.206 (0.044–0.965) |
| Control: 130 | ||||||
| Chen et al. (2016)17 | China | Case: 313 | 40–69 | ≥1 | Never screened | 0.72 (0.54–0.97) |
| Control: 1,876 | ||||||
| Jun et al. (2017)29 | South Korea | Case: 54,418 | ≥40 | ≥1 | Never screened | GE: 0.53 (0.51–0.56) |
| UGI: 0.98 (0.95–1.01) | ||||||
| Control: 217,672 |
GC, gastric cancer; CI, confidence interval; GE, gastrointestinal endoscopy; UGI, upper gastrointestinal series.