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Incidence rate ratio of hepatocellular carcinoma in the male population and 95% confidence intervals, as estimated with an age–cohort model, by birth cohort (Italy, 2003–2017).
| Birth Cohort | Incidence Rate Ratio | (95% CI) |
| 1923 | 0.92 | (0.85; 1.00) |
| 1928 | 1.00 | (reference) |
| 1933 | 1.00 | (0.95; 1.05) |
| 1938 | 0.90 | (0.83; 0.97) |
| 1943 | 0.83 | (0.76; 0.91) |
| 1948 | 0.72 | (0.65; 0.80) |
| 1953 | 0.66 | (0.58; 0.75) |
| 1958 | 0.76 | (0.65; 0.88) |
| 1963 | 0.74 | (0.62; 0.88) |
| 1968 | 0.61 | (0.48; 0.78) |
CI, confidence interval.
